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R.I.P for D.I.Y Or Long Live Open Source?

Embedded Geek writes "Scientific American has an article on the decline of science hobbyists. It presents a long litany of woe you'd expect about the "Good Old Days" (the death of classic electronic tinkering magazines, Edmund Scientific's corporate changes, and the cancelation of SciAm's own "Amateur Scientist" column), but also discusses some of the real trends in technology that have caused these changes. Declining manufacturing costs now make it cheaper to buy a telescope, radio, or computer than to build one yourself. The increased complexity of our gadgets doesn't help either (Ever tried to fix surface mount components with a soldering iron at your kitchen table? Don't!!) "

Personally, I found the tranformation of science amateurs into "quasi-professionals" intriguing. The Society for Amateur Scientists now holds sessions on how to publish research and how to claim tax deductions for home laboratories. Also, amateur astronmers are making great strides in comet discovery. Being that most of the people in the open source movement are software professionals, it becomes easy to draw an analogy between it and tinkering of yore.

340 comments

  1. A Bygone Era? Probably not. by colmore · · Score: 4, Interesting

    Cheaper professional quality equipment doesn't mean an end to amateur science. It just means a refocus.

    Where 20 years ago, the efforts of the amateur were largely directed to the construction of equipment, now he or she can work at actual research.

    This is of course an extreme generalization, but just because the days of saudering irons and garages might be winding down, that doesn't mean that dedicated individuals outside of the academic and professional communities will no longer be contributing to the advancement of science.

    I will miss the amateur column in Sci Am though, I got a lot of good ideas from there.

    --
    In Capitalist America, bank robs you!
  2. Those Electronic Kits by NetJunkie · · Score: 2

    Remember those electronic kits everyone had as a kid from Radio Shack? You know, you could build all sorts of neat things with capacitors and resistors and stuff. Who has those now? I want a really good one to play with.

    Anyone?

    1. Re:Those Electronic Kits by Anonymous Coward · · Score: 2, Funny

      "Who has those now?"

      A: Radio Shack.

    2. Re:Those Electronic Kits by Warped-Reality · · Score: 1

      Just get a bunch of parts and a breadboard [basically a circuit board that you can plug parts and wires into w/o soldering, then you transfer your circuit to a 'real' board]

      --
      This is not the greatest sig in the world, no. This is just a tribute.
    3. Re:Those Electronic Kits by Anonymous Coward · · Score: 0

      http://www.radioshack.com/category.asp?catalog%5Fn ame=CTLG&category%5Fname=CTLG%5F009%5F001%5F000%5F 000&Page=1

    4. Re:Those Electronic Kits by Nessak · · Score: 1

      There still pretty easy to come by, or at least here in NJ and Boston. I don't have the time to go and get a link, but I know there are a number of website which sell kids. Radioshack.com is one of them. (The radioshack website has a lot of cool things the stores lack.) Also check out the small independant electronic stores. I know back home there is Green Brook electronics which has an entire shelf full of kits. Here in Boston there is You-Do-It electronics which also has a number of kits. My problem with these kits is that although they are fun, they are *really* exspensive. You're better off just buying the raw components and asking a freind to draw you a schematic or something, as you'll pay $10 for a kit with a small board and some LEDs.

    5. Re:Those Electronic Kits by 3seas · · Score: 2

      Radioshack.com is closing out and there are some good deals as the discounts go as high as %80.

      I picked up two mini echo mixer kits for I think $8.00 each. The cool thing about it is that the
      Kits include two chips that are no longer being manufactured and as such to buy one of these chip,
      if you can find them will set you back $25.00

      I'll be modifying them to give me more effect than echo, like flanging and chorus.

      I also picked up a portable CD amp kit for really cheap.

      What am I gonna be using this stuff for?

      I made my own electric violin and Am making the case and electronic too.

      It looks really good and sounds good too. Now all I got to do is learn to play it.

      :)

    6. Re:Those Electronic Kits by jcsehak · · Score: 2


      Try Elenco. I got a little kit to make a "clapper" (a led lights up when you clap). The box said I'd learn everything I needed to know as I went along, but I ended up just soddering everything together like it said and not actually learning much of anything. It was fun though. They have a phone bug kit that I want to get for sampling phone conversations. Everyone and his mother samples answering maching tapes, but I want the actual conversation! Anyways, I wound up getting Charles Ryan's "Basic Electricity" book, which has since taught me a lot.

      --

      c-hack.com |
    7. Re:Those Electronic Kits by bleckywelcky · · Score: 1


      I know there are a number of website which sell kids.

      Oh boy! I've always wanted to buy some poor sap to do chores for me around the house. Please, tell me more about where I can buy some kids.

      // Joke. Please leave all human rights complaints in the suggestion box.

    8. Re:Those Electronic Kits by CmdrTaco+(editor) · · Score: 1

      I don't know if these are the same ones you're talking about, but when I was a kid I built stuff using the kits from Ramsey. Ya know, cool stuff like FM transmitters and wireless microphones and what not.

    9. Re:Those Electronic Kits by Anonymous Coward · · Score: 0

      Maybe he was talking about goats? This is Slashdot, after all...

    10. Re:Those Electronic Kits by ctar · · Score: 1

      I made my own electric violin
      A la 'Revenge of the Nerds'! Classic!

    11. Re:Those Electronic Kits by 3.2.3 · · Score: 1

      i don't think the respondents realize to what the question refers. i don't think this is about breadboard kits like the fm transmitter kit or the optical swith kit. i think it's about the packages from the 70's where there were spring loaded terminals mounted on something which looked almost like a gameboard and allowed very simple passive and active components (resistors/capacitors/inductors/transistors/sensor s/switches) to be interconnected with pre-cut lengthes of pre-stripped wires according the hundred or so plans in a workbook for circuits such as the "bird chirp oscillator." if you have one of these in your attic, there are people who would very much like to have one. i know i'd like to find one for my little niece. sure, you can breadboard things yourself from components if you know what you are doing. but there's a sort of vacuum these days for easier setups like the old radio shack multi-purpose kits which were so good for children. it sort of baffles me how children are supposed to learn the underpinnings of technology these days before they go out to create new "research." there are still sources for things like "microprocessor trainers." but the elementary easy access electronic toolkits appear to be gone.

    12. Re:Those Electronic Kits by Anonymous Coward · · Score: 0

      The "P-BOX" kits were lots of fun. Now its just junk consumer sun RS sells. There are a lot of kits available, just takes a little looking.

    13. Re:Those Electronic Kits by Don+Negro · · Score: 2

      Tinkertronics in Austin is great. It's like walking into a Radio Shack circa 1978, or browsing the old Heathkit catalog. Building Heathkit stuff with my dad was some of the best times I had as a kid. Plus he was a phone man and so the house was filled with serious equipment and more bell wire than one child should be allowed to have. It was great.

      --

      Don Negro
      Perl 6 will give you the big knob. -- Larry Wall

    14. Re:Those Electronic Kits by phliar · · Score: 2
      Remember those electronic kits everyone had as a kid from Radio Shack? You know, you could build all sorts of neat things with capacitors and resistors and stuff. Who has those now? I want a really good one to play with.
      Why do you want a "kit"? Just get the resistors, capacitors etc. from any electronics supplier. Digikey, Jameco, and a whole bunch of others. If you need circuit ideas, there are lots of books of the "101 Fun Electronics Projects" type.

      --
      Unlimited growth == Cancer.
  3. Edmund Scientific closed? by Cheviot · · Score: 1

    Egad! Now my plans for world domination are thwarted!

    Unless... anyone know where I can find an Illudium Q-36 Explosive Space Modulator?

    1. Re:Edmund Scientific closed? by stungod · · Score: 1

      Nah, they're still open, but their soul is gone.

      When I was a kid, the Edmund catalog was the best thing in the world. That's where my birthday and christmas presents would come from. I had one of the big red fishing magnets, fresnel lenses, prisms, crystal growing kits, that flying saucer kite, and a crapload of surplus electronic and military gizmos.

      I still want the Astroscan Telescope and some big lasers, but it's just not the same anymore.

      IMHO, they jumped the shark when they put a french maid costume in the catalog. I remember my dad trying to explain what that was all about... =)

    2. Re:Edmund Scientific closed? by Anonymous Coward · · Score: 0

      How about an Aludium Q36 Pumpkin Modulator instead? Only driven by a little ol' lady at weekend punkin' chunkin' contest!

      http://www.atbeach.com/punkinchunkin/pix.asp?pic =9 8pix/big/Q36_full.jpg&caption=Q36+Aludium

  4. Cost by alister · · Score: 1

    It's actually very expensive to set yourself up as a scientist. The problem is, while there's still cheap equipment around, much of the cutting-edge research can no longer be done on it. As our understanding of what makes our environment operate gets deeper, we've the unfortunate habit of requiring more complex equipment.

    While I'm not a scientist, I do work with them, and the cost of setting up even a basic research lab is prohibitive for an interested amateur, unless their name ends in Murdoch or Branson.

    Alister

    1. Re:Cost by Gunnery+Sgt.+Hartman · · Score: 1

      NO CRAP!!! Expencive is right, especially for certain chemicals. Anyone spare $486 for 100mg of buckyballs??

      --
      [ ]
    2. Re:Cost by Melantha_Bacchae · · Score: 2

      alister wrote:

      > It's actually very expensive to set yourself up as a scientist. The
      > problem is, while there's still cheap equipment around, much of the
      > cutting-edge research can no longer be done on it. As our
      > understanding of what makes our environment operate gets deeper,
      > we've the unfortunate habit of requiring more complex equipment.

      Depends on the science. There are some areas of astronomy that can be very cheap. Take meteor counting for instance. You can begin with a paper, a pencil, a timepiece and your eyes. Big spenders might opt for a clipboard, a red flashlight, a tape recorder and perhaps a mechanical counter. Those who prefer to live in the lap of luxury may opt for a comfy lounge chair. ;)

      And yes, you can perform real science doing this. After all, who is going to be caught funding the research grant for big name scientists to sit out in the cold and count meteors?

      If you are really interested in doing this, check out:

      http://www.astrosociety.org/pubs/mercury/1101pr/ le onidsidebar.html

      "The path of peace is yours to discover for eternity."
      "Mosura", 1961

    3. Re:Cost by josh+crawley · · Score: 2

      ---"It's actually very expensive to set yourself up as a scientist. The problem is, while there's still cheap equipment around, much of the cutting-edge research can no longer be done on it. As our understanding of what makes our environment operate gets deeper, we've the unfortunate habit of requiring more complex equipment.

      While I'm not a scientist, I do work with them, and the cost of setting up even a basic research lab is prohibitive for an interested amateur, unless their name ends in Murdoch or Branson."---

      You're very much right. In general, sciences require much more expensive equipment. However, I see some branches that do not require more. First, is computer science. Making new algorithyms and tighter code require powerful software tools, but software is a unlimited resource (dont bother explaining that to corporate coders). The overall cost is 0$, and I would have no qualms about stealing (warezing) for non-money making projects.

      The second field is that of basic electronics. The big costs here will be an occiliscope and an eeprom burner. With these tools, most any project can be made. You can make your own mod-chips (12c508a pic controller), or code your own. If you wanted that OGG player for your stereo, make a player, write your own tcp/ip stack, ethernet device, and boot rom code. It's hard, yes, but the amount you learn from this is immense. All you need is something to test (o-scope), and the chip burner. You might be able to get away from having a can network and have a can-to-lan device.

      Another field that would be very interesting to look around is the high energy fields (tesla's patented projects, not any of that free energy-spook shit). Energy transmission seem sreally neat, but problems occur when they flood the full bandwidth with white noise (its what it does). The FCC doesnt like this ... research.

      The last is chemistry projects. Saying chemistry has been all researched is totally moronic. It's like saying the best computer science was done 20 years ago. There's big money ahead, as in ways to figure out biological reactions for ammonia. The standard process (haber, right?) uses high pressure and high heat to break down n and h to make nh. Well, niotrogen-fixing bacteria can do this without either. We just got to find the right process.

      Even mathematics is a possible goal for scientists. All you need is computers. You don't even need powerful ones, as discoveries are made constantly.If you can figure out a process, you solve one of many problems.

      Astronomy is getting harder because focus is farther away.
      Same with physics, as the viewpoint is on that really expensive horizion

      Still there's lots of DIY stuff out there that is easy to maintain and just plain do

    4. Re:Cost by (outer-limits) · · Score: 1

      I can't see myself building my own particle accelerator, or neutron detector, in my own garden shed. It seems the smaller the particle you want to look at, the bigger the machine has to be.

      --

      Microsoft - Where would you like to go today, Maybe Jail?

    5. Re:Cost by Mike+Monett · · Score: 1

      "The second field is that of basic electronics. The big costs here will be an occiliscope and an eeprom burner. With these tools, most any project can be made."

      How about a DC to 7GHz sampling scope for under $200 in parts that lets you recover signals buried in noise. I've just invented a new sampling technique that lets you do this. The basic theory is described
      here

      http://www3.sympatico.ca/add.automation/sampler/ in tro.htm

      The first application was a wideband TDR to replace an old Tektronix unit, and the results are posted on my web site.

      How about an octave-bandwidth DDS synthesizer from 1 to 2 GHz, with noise performance comparable to high quality commercial gear. Check

      http://groups.google.com/groups?lr=&safe=off&gro up =sci.electronics.design

      Look for John Miles or "Hybrid PLL schematics (was Re: AD9854-driven PLL)"

      The pcb should be out soon at very low cost.

      John's synthesizer would make an excellent trigger source for the sampler using the heterodyne technique described on my web site. It would also make an excellent general-purpose synthesizer since it has octave bandwidth and any frequency can be generated by dividing down. Of course, it would also make an excellent local oscillator for direct conversion receivers like the K2.

      Best Regards, Mike

    6. Re:Cost by Anonymous Coward · · Score: 0

      It's very easy to build your own (low energy) particle accelerator. The old Amateur Scientist column had a couple of articles on it.

    7. Re:Cost by AB3A · · Score: 1
      Nonsense. You're just lacking in imagination and drive. Ever read how much Henry spent on building his first electromagnet (money he barely had)? Ever read a history of the Wright Brothers? How about the likes of Alexander Graham Bell?

      None of these folks started out as anything other than very interested amateurs.

      Besides, you would be surprised what a bit of scrounging can do for you. Sure, this stuff is expensive if you buy everything new and have others fabricate your stuff for you. But don't overlook surplus markets.

      It takes imagination, curiosity, and drive. Apparently you don't see that very often in a research institute.

      --
      Nearly fifty percent of all graduates come from the bottom half of the class!
    8. Re:Cost by Mister+Attack · · Score: 1

      Make them yourself! All you need is a couple of graphite rods, an airtight container, a vacuum pump, a power supply (preferably one for an arc welder, but a computer power supply will do the same thing much more slowly in a pinch) and some benzene or toluene to wash the buckyballs out of the soot.

      Whittle one end of each graphite rod to a point and place them in the airtight container, with the points close but not touching. Pump out the air, and backfill with helium (Oxygen will cause the rods to burn instead of just creating soot). Apply low voltage at high current to generate an arc between the two rods - 5 V at as many amps as you can get is a good start. Wait a while, then wash the rods with toluene. The buckyballs will dissolve in the toluene, and you can recover them as a film by evaporating the toluene away.

      Cake.

    9. Re:Cost by CaptainPhong · · Score: 2
      While it can be expensive in some fields to set yourself up as an amateur scientist, it doesn't have to be.

      For example, with relatively inexpensive equipment ($500 or less), you can do lots of useful astronomy. Variable star observation, supernova discovery, comets, asteriods and meteor showers are just a few fields that are augmented (or even completely dominated) by amateurs. If you're handy, it's not all that hard to build a telescope, and you can save a few bucks (while learning a lot). For some activities you can get by on a pair of simple 10x50 or 7x50 binoculars.

      For a big list of activities available to amateur astronomers, visit this link.

      --
      ... "Give me a woman who loves beer and I will conquer the w
    10. Re:Cost by BrokenHalo · · Score: 1

      ...some branches that do not require more. First, is computer science.

      I agree with your post in general but...

      Computer science is not a science at all, but a pseudoscience. I am not trolling, I spent 10 years as a sysprog without thinking twice about calling my area of expertise "computer science" until I started on a biotech/chemistry double-major and I was quickly jolted into the realisation that CS has bugger all to do with the scientific method, or even science in general.

    11. Re:Cost by Gunnery+Sgt.+Hartman · · Score: 1

      sweeet, i just found my summer job, thanks!

      --
      [ ]
  5. obvious by wadetemp · · Score: 2

    Declining manufacturing costs now make it cheaper to buy a telescope, radio, or computer than to build one yourself.

    A telescope or a radio, perhaps, but it's still cheaper to build a computer youself, especially with free operating systems rather than $200+ ones. :)

    1. Re:obvious by Indras · · Score: 2

      A telescope or a radio, perhaps,

      I can personally vouch for the radio. It is MUCH cheaper to buy a cheap little AM/FM radio than to build one. Try running down to Radio Shack and buying up all the parts you need to build a decent-sounding radio for under $10 (breadboard or circuit board, it really doesn't matter).

      However, a good electronics technician has the ability to take an old broken stereo, yank all the good parts, and throw together a working model for a fraction of the cost of buying one. But then again, they generally end up looking something like this.

      --
      The speed of time is one second per second.
    2. Re:obvious by Chairboy · · Score: 2

      Ah, it seems you don't understand what 'building a computer' means. Twenty five years ago, building a computer involved soldering, and a lot of it. A friend of mine at work has an old Altair based computer he built, and he talks fondly about the day he made an RS-232 card for it so he could use a terminal to write programs.

      What you're talking about is ASSEMBLING a computer from pre-built components. That's like ordering french fries at a restaurant, pouring ketchup on them, then bragging about how you cooked them yourself.

    3. Re:obvious by CaseyB · · Score: 2
      "Build a computer yourself" in this context does _not_ mean buying a motherboard, cpu, and peripherals and slapping them together.

      Homebuilding a PC today would cost far more in parts alone than buying a cheap clone at Walmart. Add to that the massive task of custom-designing hardware to run a modern CPU, memory, and IO, and you're talking _loads_ of work.

      Is it even possible? One could always recreate an old Altair project, but could a talented engineer homebuild a Pentium-based machine? Or is the support logic implicitly so complex that it must be implemented with custom chipsets?

    4. Re:obvious by TheOnlyCoolTim · · Score: 2

      Because everyone can afford the billion dollar CPU factories like AMD and Intel have, and we all can make a complicated circuit board (motherboard type) using simple chemicals and our kitchen sink.

      Tim

      --
      Omnia vestra castrorum habetur nobis.
    5. Re:obvious by Reality+Master+101 · · Score: 2

      but could a talented engineer homebuild a Pentium-based machine?

      I think it would probably be possible. What makes computers so complex is making them fast, not making them at all. It probably wouldn't be hard to TTL yourself a simple microcode assembly language, which would implement the Pentium instruction set. Just don't expect any speed records.

      You would probably also want to use standard I/O chips. It would probably would be pretty hard to implement a home-brew IDE controller, although it may not be as hard as I think if you will were willing to do some sort of software implementation on your home-brew CPU.

      It would be an amusing project. I wonder why more people don't do it for the hell of it. Anyone know of any projects like this?

      --
      Sometimes it's best to just let stupid people be stupid.
    6. Re:obvious by Waffle+Iron · · Score: 2
      Homebuilding a PC today would cost far more in parts alone than buying a cheap clone at Walmart.

      That reminds me of a story I heard a long time ago from a guy who once worked at a place that sold oscilliscope "kits". They'd buy cheap fully assembled scopes from Japan, carefully disassemble them, and package them up as do-it-yourself kits for hobbyists.

    7. Re:obvious by wadetemp · · Score: 2

      So... if you're going to assemble your own telescope, you grind the lenses yourself and fire the steel used to create the tubes? No... it's a matter of finding the parts and assembling them.

      Granted, "building a computer" is easier than it was 25 years ago, but you can't build your own motherboard with 20-odd conductive layers at home either. If you want to build a computer using a simple microprocessor you still can... it just won't be quite as useful as it once was.

      And I would dare say that Linux is enough of a hobbyist OS in some senses that learning all its ins and outs is just as challening and scientifically inventive as building an Altair was.

    8. Re:obvious by NoMoreNicksLeft · · Score: 2

      Nice veiled sarcasm. You don't need a silicon fab, never did. He didn't say that he lithographed his own custom chip, just soldered it to a board.

      Still, not being able to do a a decent pcb hurts. I'm trying to figure that one out. I'm thinking something along the lines of this. Someone like me (several someones is better than just me) spends the cash for a high end hobbyist pcb shop. Nothing quite professional, but enough to do nice surface mount quality boards, double-sided. I'm figuring the cost at something like $2000 for me, spread out over a period of months. Now, there are lots of things I want to build, and possibly even sell... but the designs will be some variant of open source. Now, if you have something you want to build, but can't afford $200 for a prototype pcb, you just open source it, through me. I send you a finished pcb at (or maybe even a little below, all depending) cost... you get something, we all get something. I can only design so much myself, so I get lots of help from people wanting other stuff... and we all get to buy or build hardware that the big corps would never make for us.

      Winners all around. Besides, I trick people into proof-reading all my crappy designs. ;-P They're not that bad, but I do need some help from time to time.

    9. Re:obvious by Kami-sama · · Score: 1

      Well, you can (potentially) build your own custom processor, actually. has all you need to get into the wonderful world of FPGAs. Better to start by modifying the pre-fab processors at OpenCores, though, as designing a processor from scratch is insanely difficult.

      Unfortunately, it would be cheaper to just buy a Pentium or Z80 or whatever and go from there.

      --
      HELP! HELP! I'm being repressed!
    10. Re:obvious by shepd · · Score: 1

      A homebrew IDE controller isn't bad, really. It is more difficult than most of the external interface logic in a PC (which probably goes LPT/COM/Keyboard & PS2/Floppy/IDE in difficulty levels).

      If you decide to build one, see if you can get an old "Smartdrive" interface board from a Tandy for a reference. There's nothing more than a bunch of TTL chips and a couple of PALs on it (nothing bigger than 20 pins).

      They still work on modern machines that still have ISA (I have one and have tested it :-), so there's no reason why you can't re-implement their design.

      --
      If you could be told what you can see or read, then it follows that you could be told what to say or think - BoC
    11. Re:obvious by (outer-limits) · · Score: 1

      Building your own computer has a very different meaning to what it used to. My first computer was an s-100 bus system, and I soldered all the components onto the cpu board. $2000 for a 2MHz Z80 with 16K ram on a separate board. I wanted to use it for a tty before I got the ram card for a 2650 based serial i/o board I bought that could run star trek. I used the ram on the video card that was left over after displaying 16*32. I hand assembled about 50 instructions into the left over memory. After all that, the star trek had a bug that caused it to crash after a couple of hours.

      --

      Microsoft - Where would you like to go today, Maybe Jail?

    12. Re:obvious by Gordonjcp · · Score: 2

      Nope. An IDE interface is just a fast, synchronous parallel port, just like the printer port. Ever wondered how you could get IDE stuff to connect to the printer port?

      The most complex thing about it is to do all the address decoding. Once you've got the address decoding sussed, the rest is just a couple of latches (to hold the data, after you've written to the bus).

      I've attached a 40M IDE drive to a ZX Spectrum before. Yes, it worked. No, not terribly well, but that was because I didn't really write decent drivers.

      Network adaptors are much the same - actually implementing the protocols is hard, physically bolting it on is extremely easy.

      The trouble with making a complete PC like that is that as the clock speed increases, the capacitance of the tracks on the board becomes more significant, and you get a phenomenon known as "skew", where two pulses travelling down two different tracks leave at the same time, but don't arrive at the same time...

      You could use an embedded 386EX chip, and a couple of the really cheap and simple CS8900 network chips to build you're very own home-brewed router. Contrary to popular belief, you don't need the latest 23.9GHZ Octium Pro XI processor to do anything useful. You can have as much fun in a go-kart with a 15hp Briggs & Stratton as you can in a 3.5 litre BMW...

    13. Re:obvious by Alan+Partridge · · Score: 1

      Yes, you REALLY DO grind the MIRROR yourself, and I've seen several self-cast and machined components too. Please don't spout off if you have no idea what you're on about. The hardest part with telescopes is measuring and aligning - then you've got to think about vibration... still, a friend of mine built his own optical bench for holography - now THAT was sensitive to vibration!

      --
      That was classic intercourse!
    14. Re:obvious by JCMay · · Score: 2
      It's not "insanely difficult" to design a processor "from scratch."

      Start with modest goals, and work up. I just recently finished designing my own 16-bit implementation of Doug Jones' Ultimate RISC processor. I'm waiting for parts to arrive so I can commence construction. I've not done digital hardware in about ten years, but I completed the design in less than a week of "a few minutes here, a few minutes there" consideration. It includes:
      • 16-bit Princeton architecture (64kword address space: 28K ROM, 32K RAM, 4K IO)
      • Serial (RS-232) I/O for terminal
      • Uber-retro audio cassette interface for mass storage


      Yet to do, but not required for operation:
      • composite video/RF out
      • keyboard interface
      • Parallel interface for PROM burner
      • Disk interface?

  6. I don't know about the rest of you by Indras · · Score: 2

    But, I refuse to buy a pre-built computer. I mean, sure, Compaq and Dell make some pretty decent pre-built machines (some which would be very difficult to build at home, such as the iPaq Legacy-Free system), but I would only use them as workstations in a business environment.

    For pre-built machines, tech support is usually pretty crummy (I can troubleshoot my own hardware problems, thank you very much), and everything is integrated on board. Sound card dies? Send the whole system in for repairs for a month to get it fixed. Personally, I'd rather just yank the SoundBlaster out of my machine and buy another, and install it in the same day.

    Don't get me wrong, pre-built machines have their place, but for the hardcore computer technicians, it is certainly not in their own home.

    --
    The speed of time is one second per second.
    1. Re:I don't know about the rest of you by Anonymous Coward · · Score: 0

      Assembling your computer from lego-like prefabbed components is not quite the same thing as soldering a bag of resistors to a breadboard yourself, you know.

    2. Re:I don't know about the rest of you by spacefem · · Score: 2

      I totally agree. It's a machine-bonding kinda thing, hard to explain to people who've never done it and before I built my own computer I questioned it myself. Everyone around me (friends, family, the whole bit) kept asking how much money I actually saved by not buying something off the shelf, but it's really not about money, it's about getting in there and doing something yourself. And now they all ask me for computer help.

      I think the general population lacks the ability to analyze risks vs. rewards situations. Risk? About $800. Reward? You're smart now. If that's not enough for the average human to tackle new exciting things, I'm a bit concerned about where society is going.

      And on another issue, the parallel port is going to totally die soon unless we geeks keep dinking with it! Fire up those LEDs, minions! Okay, glad I got that out.

    3. Re:I don't know about the rest of you by polyphemus-blinder · · Score: 1

      I'm with you on this one. And I think that this is an area that will always house the kind of geeks (like me and you) whose decline the writers of the article seem to lament. Computers and computer needs are too dynamic to recede into that sort of thing that nobody builds themselves anymore.

      I mean, who's going to sell me a box that serves as a firewall, coffee-maker manager, and garage door opener?

      --

      It's all going according to .plan.
    4. Re:I don't know about the rest of you by Indras · · Score: 2

      Everyone around me (friends, family, the whole bit) kept asking how much money I actually saved by not buying something off the shelf, but it's really not about money,

      Actually, if I may throw in a comment here... for me, many times, it is about the money. I can buy a pre-built decent quality machine for around $2,000. Or, I can take the machine I have right now, spend a couple hundred bucks on a new motherboard and processor, and have the same power of the $2,000 machine, with better quality (I know, because I hand-picked all the components myself!).

      What do I do with the old mobo and processor? Buy a cheap-ass empty case and throw it in, toss in some other components I've got laying around, and sell it to someone in my family for a few hundred bucks, with Linux and Windows both preinstalled.

      End cost for me? Usually negative! How much time did I spend doing all of that work? A few hours, but, I wouldn't call it work. "Work is what you do when you'd rather be doing something else." There's really nothing I'd rather be doing than yanking out PCI cards and troubleshooting USB devices.

      Oh, and on the parallel port thing, I don't use my parallel port on my main computer, but my workstation and laptop like to talk via parallel null-modem cable. A lot cheaper than buying a new laptop with eth0 installed (it's a Compaq LTE Elite 4/40CX, 486/40Mhz with 20Mb of RAM. The thing rocks the DOS games, baby!)

      --
      The speed of time is one second per second.
    5. Re:I don't know about the rest of you by NDPTAL85 · · Score: 1

      "I think the general population lacks the ability to analyze risks vs. rewards situations. Risk? About $800. Reward? You're smart now. If that's not enough for the average human to tackle new exciting things, I'm a bit concerned about where society is going."

      Well thats assuming that everyone or even a majority of people would consider assembling their own computer "exciting" and a barometer of intelligence. If thats the way things are then automobile mechanics must be geniuses!

      --
      Mac OS X and Windows XP working side by side to fight back the night.
    6. Re:I don't know about the rest of you by TheOnlyCoolTim · · Score: 2

      They're certainly geniuses about cars... I don't know jack shit about what goes on other the hood, aside from the basic principles....

      Tim

      --
      Omnia vestra castrorum habetur nobis.
    7. Re:I don't know about the rest of you by mgblst · · Score: 2

      ...And sell it to someone in my family for a few hundred bucks, with Linux and Windows both preinstalled.

      You cheap bastard!

    8. Re:I don't know about the rest of you by SWTP · · Score: 1

      I agree. Whitebox computer are much better since the componets are generic and can be switch in and out.

      I built my first computer, a SWTP products 6800 based unit. Took about 1 month of sticking parts on boards etc. Even built one from parts with my own design and layout using a RCA 1802, video chip and 1k { 1024 byts! } of memory. Was fun!

      Would never buy a prebuilt. Have had to fix those and most are pure junk inside. Esp the HP units.

      PS: Thos same computer still fire up and work! :)

    9. Re:I don't know about the rest of you by blisspix · · Score: 1

      Hardcore people are not the only audience for home built.

      I built my last computer for $35 :) It's got a new 15" monitor (which granted, my dad paid $70 for at a staff selloff), CD-R, non-functioning floppy (which I will have to spend $10 to replace), one of those all in one mobo deals where the modem and soundcard are integrated, PIII 500, 128mb of ram, and runs win98 quite nicely.

      I'm not technically proficient in any way but all these things are easy to put together. I wouldn't buy from Dell just because I don't need all the bits and pieces like new drives. I only upgrade my motherboard and memory.

      The most complex thing I've ever done is solder a theremin from a kit. I wouldn't let a solder iron anywhere near my computer with my novice hands, but I'm quite willing to pull things in and out.

      I would not however, build my own laptop. I purchased an iBook last week because I need a stable hardware setup.

    10. Re:I don't know about the rest of you by shepd · · Score: 1

      >If thats the way things are then automobile mechanics must be geniuses!

      I take it you've never been to more than 1 auto mechanic before (wink). Well over 50% of all auto mechanics are crooked and since most people appear to be below the mechanic's intelligence level as far as the car goes, they get away with it. [They wouldn't get away with it if you knew how to fix and check it yourself, now would they?]

      (For proof just look on TV the next time there's a crooked mechanic show on. I think my own Province scored a 65% crookedness rating!)

      If fixing cars were easy and simple the scam rate would be in the single digits.

      --
      If you could be told what you can see or read, then it follows that you could be told what to say or think - BoC
    11. Re:I don't know about the rest of you by thepooleboy · · Score: 1

      This holds true for any hobby; cars, cycling, computers, etc, as soon as you are capable enough. Not only is the quality of workmanship generally better, the product is almost like an extension of your personality.

      (consumerism as art?)

    12. Re:I don't know about the rest of you by Anonymous Coward · · Score: 0


      "...with Linux and Windows both preinstalled." If that few hundred dollars is not to cover the cost of the Windows licence (you DID buy one, didn't you?), then you are ripping off your own family? WHY?!?!?

    13. Re:I don't know about the rest of you by majestyk2000 · · Score: 1

      You know, that's exactly how people who fix computers get away with charging $50 to install a memory chip. That's just the ignorance tax at work...you know how to do it, they don't, so you tax them for it. If working on computers was easy, no one could make a living at it.

  7. Speaking of surface mount at the kitchen table by Anonymous Coward · · Score: 0
    I remember purchasing some really expensive memory for a Sparc PLUG. The memory slot had very little clearance for the surface mount components on the memory board. When the memory was slid in it broke a SMT capacitor off.

    Grrrrrr! It was hell trying to solder that thing back on without the use of a nice magnifier, overhead light, tweezers, glue, and everything else necessary for doing SMT the right way.

    Seems to me that someone was doing some network MP3 players with SMT and building the whole thing by hand. I guess some people still build things in their basements . . . sickos!

  8. Telescope-building is not astronomy by Macrobat · · Score: 3, Informative
    I have a friend who owns two telescopes and two pairs of high-powered binoculars. We've gone out and scoped out the rings of Saturn, comet Ikeya-Zhang, and solar activity (with really strong filters). The availability of cheap telescopes does not mean the end of amateur astronomy, it means the end of amateur telescope-building.

    I forget who said it, but it bears repeating: "Computer science is no more about computers than astronomy is about telescopes." It's the same thing. If my friend's interests were with tinkering with lenses and long metal tubes, he'd be doing that.

    If there were some special need he had that no manufacturer met, some special lens he needed, maybe this would be an issue. But companies stay in business by providing what their customers want. Especially when their customers are chiefly hobbyists.

    --
    "Hardly used" will not fetch you a better price for your brain.
    1. Re:Telescope-building is not astronomy by PD · · Score: 2

      Two points: First, the Astroscan telescope shown on the front page of the Edmund Scientific site is TOP NOTCH STUFF for a beginner. It's super simple to use, the optics are superb, and it's an incredible bargain at $400-$450 for the scope with tripod. It looks strange, but form follows function.

      Second, you're exactly right that telescope building is much different than astronomy. I'm in the Austin Astronomical Society, and we've got a few scope builders in the club. Trouble is, they hardly come to the meetings, and they don't bring their scopes. At the observing field, we can have more than 50 scopes on a clear summer night, and 99% of those are various commercial scopes: Meades, Celestrons, Obsessions, various small commercial dobs. By and large, these telescopes cost less than what it would take to build a similar instrument. Perhaps the best deals available right now are the 10 inch dobs. Meade makes a good one for less than $500 I believe.
      Orion Telescopes makes the best one available for $599 -link here. At those prices, there's absolutely no reason at all for an amateur to build their own telescope. 20 or 30 years ago, many people built their own scopes because a quality 10 inch reflector would cost approximately what a brand new car cost. That's all changed, and astronomy has become a lot more open to newcomers.

  9. Quality of manufactured telescopes is not good by stand · · Score: 1

    I don't care how sophisticated the manufacturing processes are, a mass built telescope will never be as good as what you can build yourself (with the right equipment). It takes many hours to grind a mirror and many more hours to align it properly and the big manufacturers just can't justify taking the time to do it right; it's too expensive.

    --
    Four fifths of all our troubles in this life would disappear if we would just sit down and keep still. -C. Coolidge
    1. Re:Quality of manufactured telescopes is not good by UberNex · · Score: 1

      Actually if you know enough about the scopes a "mass built" scope will indeed be just as good as what one could realistically build on thier own, provided one is talking about the larger sized scopes. I completely agree with you on the small guys, and anything over 16" needs to be custome ground for obvious reasons, but provided you know what is up the higher end mass built 10" and 12" tubes are actually nearly research grade.

    2. Re:Quality of manufactured telescopes is not good by Anonymous Coward · · Score: 0

      Perhaps it takes a long time to grind a mirror, but there are telescope building resources out there for people who look. I built a telescope a couple of years back, but saved myself the time of grinding a mirror by purchasing one that actually was high quality. The rest of the components fell into place.

      In short, hobbyistism isn't dead, it's just up a level of abstraction. you don't build a circuit, you build a computer from existing parts.

      Moo.

    3. Re:Quality of manufactured telescopes is not good by mamba-mamba · · Score: 1

      Hmmm. I don't know all that much about telescopes, but I did read a book about building your own. It seems to me that any scope which requires parabolic mirrors might be a bit tricky to build oneself. I believe that some mass-produced scopes DO use parabolic mirrors, don't they? Can you grind your own parabolic mirrors, or do you just stick to designs that use spherical grinds?

      I'm just curious.

      MM
      --

      --
      By including this sig, the copyright holders of this work or collection unreservedly place it in the public domain.
    4. Re:Quality of manufactured telescopes is not good by stand · · Score: 1

      The short answer is yes. As a practical matter, telescope mirrors are small enough that there isn't much difference between a spherical mirror and a parabolic. What you do test the focus of your mirror on an optical bench as you grind it. You grind and test, grind and test until the focus is where you want it. You end up with a parabola.

      The main problem with mass produced scopes is that the alignment of the mirror in the tube is hit or miss and they don't provide any way for you to adjust it yourself to make it better. It doesn't matter how well shaped your mirror is if it doesn't focus to the right spot.

      --
      Four fifths of all our troubles in this life would disappear if we would just sit down and keep still. -C. Coolidge
    5. Re:Quality of manufactured telescopes is not good by mamba-mamba · · Score: 1

      Thanks for the info. Now I understand better.

      Happy stargazing!

      MM
      --

      --
      By including this sig, the copyright holders of this work or collection unreservedly place it in the public domain.
  10. Some truth in the Topic Title by Apoptosis66 · · Score: 1

    I think the title of the topic gives a valid reason for the decline of electronic tinkering. I get my desire to tinker from my grandfather who would play with cb radios and what not, however now its so much cheaper to tinker with code and in my opinion more rewarding with its near instant gradification. I don't think these people have disappeared their minds are just now occupied with writing code.

  11. seems to me... by vena · · Score: 2, Insightful

    it seems to me that the internet has come in where hobby tinker mags left off. there's TONS of information available on home-built electronics, not only free but providing easy access to the originator in case you have trouble. just email the person and get it from the horse's mouth.

  12. My take on it by xerph · · Score: 1

    This is certainly only one out of a million possible views, but I see it as a reflection of our society as a whole. People these days would just rather have "somebody else" do it for them in most aspects of their lives. Obviously this is a very broad statement, but it seems that we're seeing less and less "do it yourselfers" in virtually every area. Too bad, when a geek locks himself (or to be fair, herself as well) in a room to work on something, we've seen some pretty cool things emerge which have undeniably made technology history.

    1. Re:My take on it by Indras · · Score: 2

      People these days would just rather have "somebody else" do it for them in most aspects of their lives.

      I understand completely, but this is not necessarily a bad thing. The days when one man could do everything himself are nearing an end. There were days when you could make your own tools, chop your own wood, build your own house, hunt all your own food, make your clothes (etc ad nauseum). Now, it is much more advantageous to specialize in one particular skill, and use it to everyone's advantage.

      For instance, if you're a really good computer programmer, and you specialize so much that you get paid well for it, then your time is worth more to you as a programmer, than, for instance, building a telescope or computer. If you want to study some astronomy in your spare time, it would take weeks of your "spare time" to make your own telescope first. Whereas, you could spend that time working, bring home some cash, and buy a telescope, so you can focus on what you're really interested in.

      Specialization is a direct result of the complexity of our culture. Personally, I love gaming and building PCs, I don't really have the time to sit down and put together my own operating system, so I get pre-made distributions, usually here.

      Other people, however, may be so interested in spending time coding that they would rather not put in the effort to build their own PC. So, they buy one (from Compaq, Dell, or, if you have the money, Alienware).

      Do I hate people who buy pre-made machines? No. The fact is, I build my PCs out of pre-made parts, so I'm just as guilty, but on a different level. I have no idea how to make a sound card, and frankly, I don't really want to know. (And, there may be some guy out there that DOES know how, and thinks everyone is stupid for buying pre-made ones from Creative).

      Do you see where this argument goes?

      --
      The speed of time is one second per second.
    2. Re:My take on it by Gorobei · · Score: 1

      Aarg, my brain! *I* *must* *resist* *the* *common* *sense.*

  13. Get a Ham License by lostchicken · · Score: 1

    Now.

    When you do, you'll see that here, it isn't cheaper to buy than build, even more so with exotic stuff. And some stuff can't be bought, like EME antennas, etc.
    There's no feeling in the world like that of having your voice reflected off the moon, and having built the stuff yourself.
    The magazine of the ARRL, QST, is filled with DIY projects, and QEX is ALL DIY stuff.

    The ARRL handbook says that over half of all hams build gear. Doesn't seem dead to me...

    --
    -twb
    1. Re:Get a Ham License by Anonymous Coward · · Score: 0

      There's no feeling in the world like that of having your voice reflected off the moon,

      Wow...I'll say. The best I could ever hope for is to have mine bounce off of the ionosphere.

    2. Re:Get a Ham License by SWTP · · Score: 1

      A Ham ticket is still fun! :)

      Its not too hard to get parts even in small quanity and there are the local ham swapmeets.

      You dont need the super fancy equipment. Even old tube rig can be got for cheep prices and with some cleanup can be use again.

      Good use for the tech you need to get a ticket.

    3. Re:Get a Ham License by thogard · · Score: 1

      The ARRL handbook says that over half of all hams build gear. Doesn't seem dead to me...

      My father has that edition. What was it, 1954 or so?

    4. Re:Get a Ham License by Anonymous Coward · · Score: 0

      Yuck ! Nothing more repelling than those cryptic acronyms. Or maybe a summary of emacs keybindings...

      I know other few-letter acronyms that I could use towards amateur radio hobbyist, but let s play polite and not call those self proclaimed snobbish elitist anal-retentive bastards by any name they deserve.

    5. Re:Get a Ham License by Anonymous Coward · · Score: 0

      I've been lurking (recieving) amature radio for over a year now. Ive built tuners and antennas.. psk31, sstv, pager decodes.. ive pulled in signals from all around the world without ever transmitting so much as a burst.

      Radio itself is VERY cool, but the biggest barrier to entry in amature radio is the amature radio people. I dont think there is a less interesting and more cliqueish lot of people on the planet. The ability to have conversations about the weather and the hardware in the ham shack certainly isnt interesting enough to have to deal with hams to get the license to transmit.

      ...and even if you jump through the hoops to get the baby ham license, you STILL cant send anything digital other than morse friggin code!

      When the ham greybeards finally go silent, and the fcc hops on the clue-train and re-organizes amature radio so normal people can actually experiment with radio legally, amature radio will be cool. Until then, it is an expensive chat room for boring old people, with a government enforced exclusivity clause. And that SUCKS.

  14. Re:Scientific American is over my head by a mile! by Anonymous Coward · · Score: 0

    How did you do that?

  15. In Related News... by robbyjo · · Score: 2

    Some folks at Extreme Tech also said that DIY computers will be dead with more or less the same reasons. Is this a trend or what?

    --

    --
    Error 500: Internal sig error
    1. Re:In Related News... by foonf · · Score: 2
      Some folks at Extreme Tech [extremetech.com] also said that DIY computers will be dead [extremetech.com] with more or less the same reasons. Is this a trend or what?


      They're dead already. Its just a matter of snapping together pre-built modules. Sure more stuff will get built onto the motherboard, but thats been happening for a while. Remember when you had to get a seperate IO card for serial/parallel ports, IDE, floppy, etc.?

      Either way its a far cry from soldering your own system together.
      --

      "(Man) tries to live his own life as if he were telling a story. But you have to choose: live or tell." --Sartre
    2. Re:In Related News... by TheOnlyCoolTim · · Score: 2

      The state computer technology mean that the factory equipment to do the equivalent of "soldering your own system together" is generally not within the cost range of any amateur. You can still solder together your own computer, if you feel like digging up some ancient technology. Otherwiser, you need to get the multiple layer motherboards and the CPUs that require a billion dollar fab plant from someone else.

      Tim

      --
      Omnia vestra castrorum habetur nobis.
    3. Re:In Related News... by foonf · · Score: 2
      The state computer technology mean that the factory equipment to do the equivalent of "soldering your own system together" is generally not within the cost range of any amateur.

      I didn't say otherwise. Even with ancient technology its certainly beyond MY feeble means. But I think people who put their own systems together from OEM parts need to understand how little it is that we are really doing. Its not that different from buying a box from Dell or whoever (aside from saving money, that is).
      --

      "(Man) tries to live his own life as if he were telling a story. But you have to choose: live or tell." --Sartre
    4. Re:In Related News... by Anonymous Coward · · Score: 0

      aside from saving money AND having more power/control.

  16. Home laboratories. by Anonymous Coward · · Score: 4, Funny

    I did what the Society for Amateur scientists suggests and set up a home laboratory i collect tax deductions on. Setting up a home laboratory is easy, you can have fun with it, and make some profit as well. I'm a big proponent of it. I do research with mine. In chemistry. Chemistry research.

    It of course has nothing to do with Ecstasy at all.

    What? the DanceSafe Bumper stickers? Um.. i just, uh.. support their cause and all. That's all. Excuse me, i have to go now.

  17. Re:Funny... by Anonymous Coward · · Score: 0

    Maybe you should start your own News for Nerds site and invite all your friends and then you could post whatever story you want.

  18. Heathkit by Anonymous Coward · · Score: 0
    I just sold a pinball machine last Saturday during a garage sale. It was built from a kit put together by Bally and Heathkit. That was the coolest thing - I remember playing to for hours when I was a kid (I was about ten-years-old when I got it). It still had the manuals in the bottom. I sold it to a guy that at least knew what Heathkit was. He now has to do some fixing of microswitches, rubber bumpers and solenoids to get it going again.

    I'm going to miss that 'ol pinball . . . sniff.

  19. surface mount components.. by Anonymous Coward · · Score: 0

    .. come off quite easy with a tool to burn off old paint. Really.

  20. do you see? by Anonymous Coward · · Score: 0

    this post is a lie

  21. Born in 1980 by RobPiano · · Score: 2, Insightful

    Well to show my age, I was born in 1980. I had two electronics kits, out of which I built a radio that could pick up WGN and a buzzing thing. Electronics, however, never really caught my eye because in 1982 I had my own TI 99 which cassette player storage and cartridge games. It was far more fascinating then building a radio or buzzing thing, and it did a lot more.

    By the time college came around, I considered EE but computer science had already made a larger impact. In college I've tinkered some with electronics. I helped fix a nintendo, a stereo and a light with an EE friend, but I was not convinced to change majors. The reason? Because as fun as it was to fix the nintendo, buying a new one is $30 and as fun as it is to do low level circutry for 2 days, its much more rewarding to have a complete working program in an hour.

    Electronics is complicated, expensive and time consuming you just can't do it anymore without a degree. The majority of people who would be attracted to Electronics in the "old days" find Computer work much more accessible.

    Lastly, you should all know my kids will learn basic electronics. I might not be into so much, but the hobbist still has some opportunity, although slim.

    Rob

    1. Re:Born in 1980 by Anonymous Coward · · Score: 0

      Wait, you built a radio before you were two years old?

      Incredible. I mean, seriously, thats like DaVinci level.

    2. Re:Born in 1980 by Anonymous Coward · · Score: 0

      He had his bottle in one hand and a soldering iron in the other! LOL

  22. Radio Shack has become a crappy Best Buy by teamhasnoi · · Score: 2
    Sure, they still have resistors, caps, leds, wire and some breadboards, but the majority of what they sell is cheap-ass phones, and radio controlled toys. Radio shack has become a crappy Best Buy without name brands ('cept RCA, an I won't even go there..;)

    I have a Radio Shack a block away from my house, and every time I go in, it's an educational experience.

    For them.

    I have to explain the difference between ether cable and telephone wiring.

    Um. I don't need any help. I know your store better than you do. :P

    1. Re:Radio Shack has become a crappy Best Buy by John+Miles · · Score: 2

      That's certainly true of the stores, but http://www.radioshack.com might surprise you. They have got a SERIOUSLY good web operation. Check it out if you haven't already.

      --
      Dahlmann tightly grips the knife, which he may have no idea how to use, and steps out into the plain.
    2. Re:Radio Shack has become a crappy Best Buy by CmdrSanity · · Score: 1

      Going to have to disagree with you there. I think it depends on the location of the RadioShack and who you speak with when you go. Once, I went there to get an optical->analog converter so that I could hook up some components on my sound system. They didn't have one in stock or in the parts catalog so the manager offered to get someone to *build it for me.* Came back a week later, got the equipment for $30. The best online price for similar equipment I could find was ~$100 for the CO2 converter.

    3. Re:Radio Shack has become a crappy Best Buy by 3seas · · Score: 2

      You are absolutely correct!!!!

      Can't even find the audio cables I need and when I patchwork what they have together.... it don't work due to shoddy manufacturing.

      They used to be alot better.

    4. Re:Radio Shack has become a crappy Best Buy by SuzanneA · · Score: 1
      Its not so much the location, as the type of radio shack.

      See, there are 2 types of radio shack, there are the corporate stores (owned and operated by 'Radio Shack') then there are the franchise stores (owned and operated by individual(s)).A franchise owner once explained to me, that he daren't carry anything beyond the cheap phones, satellite systems, etc, because thats all he could guarentee on the public to buy, and HE has to give Radio Shack (the corporation) money up front for his stock. He then gave me the address of the nearest Corporate RS that would carry the components I wanted.

      So, the first step is to find your local corporate store, they should list it on the web site (if not, call a random local RS and ask them where the nearest corp. store is). They will carry a lot wider selection of components.

    5. Re:Radio Shack has become a crappy Best Buy by shepd · · Score: 2

      Sadly, many of the radio shacks in Canada (or so I've seen and been told by RS Managers) have stopped stocking even basic parts like resistors and capacitors. The only wire they carry is good for cars, tv and satellites. I can't even find wire wrap wire (or the tool) in many of them anymore.

      Breadboards? At $20 each (when they sold 'em) don't even get me started...

      If you're lucky you can sometimes get switches there.

      Does it _really_ cost that much to have an inventory of these penny-parts that they can't afford to stock them?

      --
      If you could be told what you can see or read, then it follows that you could be told what to say or think - BoC
    6. Re:Radio Shack has become a crappy Best Buy by Tackhead · · Score: 2
      > Going to have to disagree with you there. I think it depends on the location of the RadioShack and who you speak with when you go.

      What you said. I do most of my shopping at surplus electronics stores, but there are still a few (a very few) Radio Shacks that are true to the faith.

      My old town:
      Very much the stereotypical "You've got questions, we've got blank stares" kind of store.

      My new town:
      Me: [reluctantly goes into RS, hey, it's nearby and I might get lucky and save myself a long drive... yay, I find the parts!]

      RS guy: [seeing one of those little 600-ohm telephone transformers and some 10M resistors] So - buildin' a radio or a line finder?

      Me: Line finder. Hangin' a painting in a new apartment, but yeah, once I find where my wiring is, I oughta build a crystal radio, I haven't done that since I was a kid - HEY! This is isn't supposed to happen at Radio Shack!

      RS guy: (Laughs) - Yeah, there aren't many of us left who still build for the fun of it.

      Me: You said it. Nice to see there's still some of us left - you wouldn't happen to know where I could get a $PARTNUM for the vertical deflection on $TV_MODEL, would you? (/me shows datasheet)

      RS guy: (nodding) I've seen that - very common failure mode with that set. (/he points at a cap on the reference design page). Usually this cap has dried out, which takes out the deflection amp. We don't have the amp, but [gives name/address of local TV repair guy about 3 blocks away] does. If it's more the amp or the caps, he also does good work.

      We talked shop for a few minutes after that, basically the same things as this Slashdot thread, namely that disposable/replacable modules and the shift to SMT and ASICs made repair work easier (swap modules) and electronics cheaper and better -- but that the price was that it was gonna be very hard for anyone starting from scratch to ever "learn it all from scratch" anymore. You can cobble together some neat stuff with TTL and discrete components, but there's a huge jump in cost and learning curve to get from there to playing with, say, FPGAs.

      But hey, a couple of days later, I had the picture safely attached to the wall without fear of nailing through a live wire, the TV was fixed, and that Shack had a customer for life.

    7. Re:Radio Shack has become a crappy Best Buy by DNS-and-BIND · · Score: 2

      The only web operation I know of worth reading is radioshack sucks dot com. Much better than the one you mentioned.

      --
      Shutting down free speech with violence isn't fighting fascism. It IS fascism!
    8. Re:Radio Shack has become a crappy Best Buy by John+Miles · · Score: 1

      That's a pretty good one, too. Before encountering radioshacksucks.com awhile back, I never realized that the proper term for the (relatively few) useful electronic components sold by RS is "force feed."

      Apparently, RS employees worldwide are united in their hatred of the laborious restocking and inventory-maintenance process that brings us those $1.98 bubble packs of assorted LEDs.

      --
      Dahlmann tightly grips the knife, which he may have no idea how to use, and steps out into the plain.
    9. Re:Radio Shack has become a crappy Best Buy by Anonymous Coward · · Score: 0
      Here they try to push a cell phone on you every time you come in the store.

      "Hey, I have a great cell phone plan for you!" (I tell them I already have a cell phone.) "Would you like to try one of our cell phones?" (I show them my cell phone.) "Sir, I have a great deal for you, our cell phone plan has ..." (I leave.)

  23. Sigh - Fry's has changed ... by taniwha · · Score: 2
    I paid the down payment on my first house with designs I breadboarded with stuff from Frys ... now days they're still stocking the same baggies of bits the had 10 years ago - when they were state of the art.



    To be fair PCI has a lot to do with it - too much overhead in the bus interface - before the advent of pci you could wirewrap a NuBus or ISA card with a few jelly-beans

    1. Re:Sigh - Fry's has changed ... by PD · · Score: 1

      How tough is it to use the USB or firewire interfaces? When one interface gets too complicated, switch to another.

    2. Re:Sigh - Fry's has changed ... by taniwha · · Score: 1
      How tough is it to use the USB or firewire interfaces? When one interface gets too complicated, switch to another.

      No tougher than using a PCI core in an FPGA - but you can't buy a PCI or firewire core, or a USB interface chip at Frys - you used to be able to but the 74xx/PALs you need to wirewrap up a card in you garage, and turn it into a product.



      I did a half dozen nubus cards when the mac II came out, a simple interface was 3 chips and a ROM - I've done PCI cores since (from scratch) its an order of magnitude or two more logic - the number of gates for all those registers that are required to configure the system put it beyond the "pal-and-jellybean" sort of designing we used to do

  24. History of the column by young-earth · · Score: 4, Interesting

    From this page, a very nice history of the column in SciAm (though it was apparently a bit optimistic at the end of the piece):

    A Brief History of
    "The Amateur Scientist"

    Albert Ingalls
    "The Amateur Scientist" traces its pedigree to 1928, when famed astronomer Albert Ingalls began the column as "The Backyard Astronomer." Ingalls told amateurs how they could get personally involved in astronomy by building professional-quality instruments and carry out cutting-edge observations. Eventually Ingalls chose to broaden the column's scope to include "how-to's" from all fields of science. When he did, he also changed the department's name to "The Amateur Scientist."

    C. L. Stong
    Ingalls wrote his column for almost 30 years. When he died in 1954 the publisher selected C. L. Stong to continue the feature. Stong was an electrical engineer for Westinghouse and a master tinkerer who brilliantly extended the column, frequently peppering it with extremely sophisticated projects including home-built lasers and atom smashers. Many working professional scientists say that they first got hooked on science through Stong's amazing columns.
    In 1960 Stong compiled a book titled The Amateur Scientist, (Simon and Schuster) the only collection of articles that has ever been published from this column. However, limited to paper and ink, Stong could only fit in 57 projects. Despite being only a partial anthology, never being advertised in Scientific American , and appearing long before the rise of home schooling, Stong's book sold over 10,000 copies. It went out of print in 1972 and is much sought after today by amateur scientists.

    Jearl Walker
    Stong ran the department for over 20 years until he died in 1977. In 1978, Scientific American hired Jearl Walker, Ph.D. to take over. Walker had caught the publisher's attention thanks to The Flying Circus of Physics, a book Walker wrote which highlighted the fascinating physics of the everyday world. Under Walker's stewardship "The Amateur Scientist" presented fewer how-to projects, and instead focused on the physics of common phenomena. Walker's columns are still frequently consulted by educators and students alike.
    Walker resigned from Scientific American in 1990 after 12 years. Collectively, Ingalls, Stong and Walker account for 90 percent of all articles.

    Forrest Mims
    After Walker left, Scientific American decided to rededicate the column to hands-on projects and so they hired Forrest Mims III, a renowned writer of books for Radio Shack and an accomplished amateur scientist. They quickly learned, however, that Mims was an supporter of so-called Scientific Creationism, a movement that attempts to include the creation story of Genesis in biology curricula as a scientifically viable account of human origins. Not wanting to be perceived as supporting Creationism, Scientific American fired Mims. Mims charged religious discrimination and the story was carried through most major US news outlets.
    Although the incident didn't diminish Scientific American's commitment to the column, it did make them gun-shy about hiring another amateur scientist to write it. But professionals tend to be too narrowly focused in their own disciplines. The publisher invited many potential columnists to submit individual articles, and most of these were published under "The Amateur Scientist." But the magazine was unable to find anyone with both professional credentials and the incredible breadth of science knowledge necessary to recapture the popularity the column enjoyed under Stong and Ingalls. And without a regular columnist, the department languished, appearing only sporadically between 1990 and 1995. Most Scientific American readers stopped looking for it when they got a new magazine.

    Shawn Carlson
    In 1995 the editorial staff discovered the Society for Amateur Scientists. It's Founder and Executive Director was Dr. Shawn Carlson, a physicist and established science writer who had left academe a year earlier to devote his career to helping amateur scientists. Dr. Carlson took over the column in November of that year and immediately returned the column's focus to cutting-edge projects that amateurs can do inexpensively at home. Today, over 1 million Scientific American readers turn to "The Amateur Scientist" every month. The column has never been more popular.

    1. Re:History of the column by Anonymous Coward · · Score: 1, Insightful

      Its available on CD-ROM at the evil Amazon (hereafter to be refered to as Calisto): Scientific American's "The Amateur Scientist" : The Complete 20th Century Collection on CD-ROM

  25. FIY (fix it yourself) is also in decline by slam+smith · · Score: 3, Insightful

    I remember when I was a kid, people actually used to be able to fix thier own TV's and stereo's. My parents had this really cool stereo that included a circuit diagram. (Who does that anymore?) Now adays it requires special training and tools to fix some of these things, IF you can even find spare parts. And if you do there isn't any guarentee that the parts will even be cheaper, than the cost of a new one. The compressor on my fridge goes out. I get a quote for $540 to fix it. I only paid 560 dollars for the thing brand new. I ended up buying a new one. The picture tube goes out on my TV. Well I didn't try to have it fixed. I just bought a new one.

    The scale of economics in building consumer devices in 3rd world countries is so great that it isn't really worth the cost of having them repaired. It's often cheaper to buy an new one, and even if it isn't the new features available in the latest devices still make it worthwhile.

    1. Re:FIY (fix it yourself) is also in decline by ejaw5 · · Score: 1

      It's really about cost. It used to be people would crack open a malfunctioning device, study it for minutes and fix it. I do it sometimes for my smaller devices that are relatively safe to work with. (Like, i wouldn't mess with a PC Power Supply). But when it comes to big ticket electronics like TVs, Refrigerators, and such, the cost to repair it is usually more than 1/2 the cost of a new one. You go ahead and buy a new one with new features and save time. You also have to consider the possibility of shelling out another couple of hundred $$ to fix a new problem that may arise in the near future. So in that respect, yes fix it yourself is going down. But I think electronic hobbying has evolved from soldering capacitors on circut boards (which i think is cool and want to learn those things) to programming and PC building.

      --

      $cat /dev/random > Sig
    2. Re:FIY (fix it yourself) is also in decline by jcsehak · · Score: 2

      My parents had this really cool stereo that included a circuit diagram. (Who does that anymore?)

      Audio equipment manufacturers. Both my Mackie mixer and my Fender amp came with circuit diagrams. They're not much good to me now, but hopefully sooner or later I'll know enough about the stuff to be able to fix or tweak them myself. The Mackie even gives you instructions on how to do a couple basic hacks! I've also heard that a lot of people who go to music school build their own amps and speakers.

      --

      c-hack.com |
    3. Re:FIY (fix it yourself) is also in decline by istartedi · · Score: 2

      Of course it isn't complete though. The other day I started to vacuum the basement. The cleaner wasn't picking up much, so I examined the underside. The roller had a lot of threads and hair and stuff stuck to it. So I started to clean it. While I was cleaning it, the belt came off right in my hand. It had snapped, which explained why it wasn't working very well. I had never serviced a vacuum cleaner before. I examined the plastic cover, and much to my delight it was designed to snap off with the aid of a flat-bladed screwdriver. There were even handly little pictograms cast into the plastic that showed you where to pry. Once I had the motor shaft exposed, I knew I could replace the belt--if only I could find the right part. Here's the good part. I went to Fischer's Hardware. Not only is DIY and the mom-n-pop hardware store not dead, the mom-n-pop hardware store with no web presence of its own and nothing more than a listing with the chamber of commerce is not dead either. Fischer's has been in Springfield as long as I can remember, and I can remember a lot longer than I care to say. But wait, it gets better. Fischer's staff, unlike the huge box store staff, is always helpful. So I was not the least bit reluctant to walk in there with a broken belt and get either a replacement or a referral to someone who had a replacement (they referred for the fan motor for our bathroom). The guy in the vacuum department didn't have an official Hoover parts guide. When I said "do you need the model number" he gave me this look and said "don't get me started on model numbers". He took out some similar sized belts and started comparing them. When he found a close match, he handed me a Eureka belt and said "You can try this, and if it doesn't work use the yellow pages, get the part number from the mfct..." In other words, what I was too lazy to do in the first place and went to Fischer's to avoid doing. You can't get real-world expertise, honesty, and common sense like that from Home Depot. The belt was $2.18 and well... I had a coupon for $2.00. This was a no-brainer. Not having to track down a "genuine hoover part" was worth an $0.18 gamble. So I bought the little belt, got it home, and installed it. It was a little wider than the original belt, but it fit. The cleaner works fine now. I ran it for a good 15 minutes and there was no smoke or anything. Hopefully this fix will last, and even if it only lasts a few months I will happily buy another belt from the vacuum-cleaner hacker at Fischer's. That might cost more in the short run, but if Fischer's ever went away it would be a priceless loss.

      --
      For all intensive purposes, "whom" is no longer a word. That begs the question, "who cares"?
    4. Re:FIY (fix it yourself) is also in decline by TheOnlyCoolTim · · Score: 2

      You can still try. A lot of times stuff will break down cause of really stupid shit like a little broken wire. I always open stuff up and try to fix it.

      The only thing I won't mess with are TVs/Monitors, cause I've heard too many horror stories about dastardly amounts of electricity seeking escape through the unfortunate amateur repairman.

      Tim

      --
      Omnia vestra castrorum habetur nobis.
    5. Re:FIY (fix it yourself) is also in decline by slam+smith · · Score: 1

      There are still some things that you can fix yourself. But to be honest with you replacing a vacuuming cleaner belt IMHO isn't fixing something. The belts are almost as much a consumable as the dirt bags. (It's weird to use that phrase in a non-insulting context). When I buy belts, I buy several at once, because I know that I will need to replace them again and again. It's like changing the oil in your car just regular maintence.

    6. Re:FIY (fix it yourself) is also in decline by Anonymous Coward · · Score: 0
      In other words, what I was too lazy to do in the first place and went to Fischer's to avoid doing. You can't get real-world expertise, honesty, and common sense like that from Home Depot. The belt was $2.18 and well... I had a coupon for $2.00. This was a no-brainer. Not having to track down a "genuine hoover part" was worth an $0.18 gamble. So I bought the little belt, got it home, and installed it. It was a little wider than the original belt, but it fit. The cleaner works fine now. I ran it for a good 15 minutes and there was no smoke or anything

      Huh? What's good about this? Home Depot would have busted out the parts book, sold you the certifiably correct part, and probably for the same price. Every time I've had to get a vacuum cleaner belt they're usually 2 for 3 dollars or so, for the 'genuine hoover/b&d/whoever' part. What a crock of shit. Being ill-prepared, operating on guess work, and selling the customer a vacuum belt which was 'a little wider, but it fit' is equal to 'real-world expertise, honesty, and common sense?' What fucking Home Depot do you go to? Every time I go in there for some simple thing, I don't find that expertise is lacking; I go for a simple piece of pipe, and find out that "it could be 3/4" or 5 centimeter, double-threaded leaded PVC with teflon thread blah blah blah blah blah". I'd rather have that then have some asshole say 'well, here's a pipe. It might be too big, if so maybe you should call someone who knows what they're talking about, unlike me.'

      you are worse than a nigger.

  26. Interesting by Anonymous Coward · · Score: 1, Informative

    This siteis kind of interesting, it has a number of homemade recipes for building bizarre science stuff.

    My favorite is the cloud chamber , with this device you can observe radioactive particles. You can actually see the curly little vapor trails that particle scientists observe in major accelerators.

    There's also a modification for observing cosmic rays, high energy particles that are zipping through you by the thousands every second.

  27. Muscle wire and super-magnets by Caractacus+Potts · · Score: 4, Interesting


    I've actually been doing more hobby stuff lately. Having more disposable income than your average kid makes a difference. Another difference nowadays is the greater variety of cool gadgets available and the Internet for obtaining them. I actually took time out of my busy weekend to build a flashlight out of super-magnets, some copper wire, and a couple white LEDs. To see the plans, look here. Next weekend, I think I'll do something with muscle wire. Oh, and those 100 ball bearings I just won on eBay, just wait and see...

    1. Re:Muscle wire and super-magnets by PD · · Score: 1

      Oh, and those 100 ball bearings I just won on eBay

      These would make a great "snooper detector". Next time you have a party, drill a hole in the top of your medicine cabinet in the bathroom. Close the mirror. Pour the bearings in the top.

      If any of your guests get snoopy and open the mirror cabinet, you will know.

    2. Re:Muscle wire and super-magnets by GigsVT · · Score: 1

      You seem like a kindred soul, so I will let you in on a little gem I turned up in my inventing hobby. TAP Plastics.

      Web Site

      They aren't like most stuck up chem suppliers, they sell direct to the public.

      I got some glass microspheres, and man, those things are cool. Imagine a fine powder, finer than powdered sugar, but it's not a powder, it's millions of tiny glass spheres containing air. If you pour them on water, they float on top and form a skin. You can stick your finger in the water, and the skin follows your finger down, so when you pull your finger out, it's not wet. It's really cool stuff to play with.

      They also carry PU Foam two-part system in bulk, epoxy resins in bulk, fiberglass fabric, shredded fiberglass for reinforcing epoxy, and plenty of other cool stuff. Their prices are reasonable, and shipping isn't too slow.

      I know this is a glowing review, but I don't have any financial interest in TAP plastics, they are just a cool supplier for home experimenters.

      --
      I've had enough abrasive sigs. Kittens are cute and fuzzy.
  28. It's also present in the software field by Ryu2 · · Score: 2

    I remember a day where almost every popular computer mag, PC Magazine, PC Week, the now-defunct Compute, etc. had source code listings in the back that you typed in yourself, usually in Assembly language. They weren't toy programs either, but usually useful utilities, like file managers, text editors, games, etc. Not commercial quality, but still amazing for something that you could enter in by hand.

    Those listings, despite being a pain to enter and debug, taught me most of my early programming and software design knowledge before I formally learned it in school, and probably did so for others.

    Now, none of the general mags have software you can program yourself. Not even the programmer mags like Dr. Dobbs journal have full working apps anymore, just little code snippets.

    Anyone else miss those days?

    --
    There's 10 types of people in this world, those who understand binary and those who don't.
    1. Re:It's also present in the software field by Anonymous Coward · · Score: 0

      Yea. I remember the good old days. I even had two programs published in Compute!'s Gazzet (a Commodore 64 specific magazine).

      They had those hex listings in there with a checksum as the last byte of each line. The neat thing was that they had this BASIC program you used to type the stuff in, and when you typed the line in correctly, it would beep, and on an error it would buzz. After several months of doing this, I could actually just key in entire listings whitout even looking at the screen!!

      But seriously, why would they publish code now when it just a lot simpler to just download it off the net. I want more indept article that comment on the code.

    2. Re:It's also present in the software field by Anonymous Coward · · Score: 0

      Typing in the games from COMPUTE! was a real pain in the ass. At least they added a crude checksum as the last number of each row in those several hundred line listings - too bad it was only the sum of the previous numbers which lead to inverted number typos. But, yeah, having my game published in COMPUTE was my first real "job" - $500 bucks! Sure, I miss those days. Funny, I recall playing a lot of M.U.L.E. in those days as well... and here I am on Slashdot today. Is that pathetic or what? It's hard to believe computers are over two thousand times faster than they were 20 years ago. Remember writing games in 64K of memory? Now that's the size of a string buffer in a modern program.

    3. Re:It's also present in the software field by ncc74656 · · Score: 1
      I remember a day where almost every popular computer mag, PC Magazine, PC Week, the now-defunct Compute, etc. had source code listings in the back that you typed in yourself, usually in Assembly language. They weren't toy programs either, but usually useful utilities, like file managers, text editors, games, etc. Not commercial quality, but still amazing for something that you could enter in by hand.

      Those listings, despite being a pain to enter and debug, taught me most of my early programming and software design knowledge before I formally learned it in school, and probably did so for others.

      I still have the last seven or so years' worth of Nibble (for the uninitiated, it was a magazine for the Apple II with program listings). I already had BASIC pretty much figured out, but I got up to speed on 6502 assembly language that way. I even managed to sell them a couple of my programs, one of which was published in the April 1990 issue (it's an add-on to BASIC to read the color of a pixel on the Hi-Res screen and return it to your program).

      Ever since I first got to play with an Apple Scanner (the original B&W flatbed model) hooked up to a Mac back in '89 or '90 (and used it to scan in a program...saved lots of typing :-) ), I figured that eventually I'd OCR the whole collection—articles, programs, and all. Eventually, I'll accumulate enough round tuits to scan 'em in...maybe they'll go up on my website or something.

      --
      20 January 2017: the End of an Error.
    4. Re:It's also present in the software field by gartogg · · Score: 2

      "Now, none of the general mags have software you can program yourself. Not even the programmer mags like Dr. Dobbs journal have full working apps anymore, just little code snippets."

      I'm sorry if im missing something, but I never learned a thing from the full-length progrmas that "teach" one how to program. At the idea's best, the programs can serve as examples, and at worst, they training for a data entry position.

      Maybe just using reference books to learn how to code was a substitute, but those retype-able programs were always a waste of time for me.

      --
      I'm a concientious .sig objector.
    5. Re:It's also present in the software field by Ryu2 · · Score: 2

      It wasn't so much typing in the programs for me, as it was playing around with them and modifying them -- they were much more intersting then the dry example programs found in most reference books. This was in the days before I had net access, so there weren't any web sites or anything else with source code that you could download.

      --
      There's 10 types of people in this world, those who understand binary and those who don't.
  29. Ironic of Sciam... by UberNex · · Score: 2, Interesting

    Honestly Sci Am did enough to kill off thier once good Am Scientist page in the last few years. Once this article was great and had some really good ideas, but ever since the feature's author got his "genius" grant quality control went way way way down. Really the last year or three of the series all they had were a bunch of very difficult to pull off experiemnets (not a problem, it's nice to see some dedication), but also did not even produce the results they were supposed to. Sheesh, the guys didn't even bother looking at the data they produced. Most of thier detection of things uch as "gravitatinal pull of the moon" or "Geomagetic microulsations" were all equiptment atrifacts and not even real data. Yurk.

  30. Picking up on the wrong cues by Anonymous Coward · · Score: 0

    I think the death of Scientific American is tainting their outlook a little bit.

  31. stupid frames! by Anonymous Coward · · Score: 0

    correct link:

    http://www.radioshack.com/category.asp?catalog%5 Fn ame=CTLG&category%5Fname=CTLG%5F009%5F000%5F000%5F 000&Page=1

    1. Re:stupid frames! by Anonymous Coward · · Score: 0
  32. Mourning the death of "The Amateur Scientist" by gregwbrooks · · Score: 4, Interesting
    When I was in high school (circa 1981), I borrowed an old, book-sized anthology of "Amateur Scientist" columns from a friend.

    That sucker never saw my friend's house again -- the stuff you could make was incredible, and clearly from a time before anyone thought about suing authors for writing potentially injurous copy.

    You could build (I kid you not):

    • your own X-ray machine (strong enough to kill mice!) out of old radio tubes;
    • your own rocket (5 feet high! Made of metal!) powered by oh-so-explosive powered zinc; and
    • even use an interestingly shaped chamber (can't remember the name, dammit!) to turn a stream of pressurized air into two streams -- one very chilled and one very hot -- using nothing more than the shape of the cylinder.

    (The latter, now that I think of it, would make a great case-cooling system. Gotta go to the garage and find that book...

    --


    "It was a summer's tale: Just a boy, his Linux, and a head full of dreams..."
    1. Re:Mourning the death of "The Amateur Scientist" by Anonymous Coward · · Score: 0

      Lead pants that could block the most lethal silent farts.

    2. Re:Mourning the death of "The Amateur Scientist" by sconeu · · Score: 2

      your own rocket (5 feet high! Made of metal!) powered by oh-so-explosive powered zinc

      Isn't this how they started off in October Sky?

      --
      General Relativity: Space-time tells matter where to go; Matter tells space-time what shape to be.
    3. Re:Mourning the death of "The Amateur Scientist" by Tekgno · · Score: 3, Informative

      The chamber is known as a vortex tube the German name is the WhirbelRohr.

      Basically, you have a cylinder with both ends sealed off, on each end you attach a narrow length of pipe, one tube has a large hole goin through into the cylinder, the other has a smaller hole, slightly smaller. Both of these holes are axially placed. Now you add another tube to the side of cylinder, but placed so that it enters at a tangent, this also has a hole into the cylinder.
      Now force air into the tube on the side, as the air is injected tangentally to the cylinder, the air will swirl around around it eventually gets to the center. Pressure variations inside the cylinder will seperate the air into hot and cold, hot will come out of one pipe and cold the other.
      This device will also produce a strange noise, any attempt to cancel this noise will stop the device from functioning.

      Further details can be found Here
      I have been considering using this in a cooling mod but as my parents complain enough about the current noise, I don't think I'll push my luck any further. Besides, steps need to be taken to handle condensation on the cold tube.

      Building the device to ideal measurements will get you some very cold air:

      >compressed air at room temperature (20 C) could
      >in principle be cooled to about -258 C, a mere
      >15 degrees above absolute zero! (The
      >corresponding temperature of the hot side would
      >have been 80
      >C.)

    4. Re:Mourning the death of "The Amateur Scientist" by whydna · · Score: 1

      That was the coolest thing i've ever read... might have to fark with that this summer... thanks for the link..

      -Andy

    5. Re:Mourning the death of "The Amateur Scientist" by Tekgno · · Score: 1

      That was the coolest thing i've ever read
      Pun intended?
      Just google it for other sites, but that link you got is probably all you need to start playing.
      I made a dodgy one out of plastic, an old hair-gel container and some bits of black PVC pipe, all held together with masking tape. Needless to say, it fell apart, but I did manage to detect a temperature difference and hear the noise.
      I need to go visit the tip and drag out the welder :)
      Just don't go sueing me when you get your tongue stuck on one end and burn your feet (or worse) with the other :O

    6. Re:Mourning the death of "The Amateur Scientist" by Anonymous Coward · · Score: 0
      even use an interestingly shaped chamber (can't remember the name, dammit!)

      Hilsch Vortex Tube.
    7. Re:Mourning the death of "The Amateur Scientist" by Animats · · Score: 3, Informative
      * even use an interestingly shaped chamber (can't remember the name, dammit!) to turn a stream of pressurized air into two streams -- one very chilled and one very hot -- using nothing more than the shape of the cylinder.

      Thats a Hilsch Vortex Tube. A friend of mine made one out of brass in college. (This back when a computer maintenance shop required a lathe.) It works, but it's an inefficient refrigerator. The basic idea is to centrifugally separate fast-moving and slow-moving atoms, like Maxwell's Daemon. It doesn't violate conservation of energy, although the proof of that is involved.

    8. Re:Mourning the death of "The Amateur Scientist" by SpinyNorman · · Score: 2

      Heh! :-)

      I have an similar book myself but meant for a younger group - I'm not sure how far back it dates, but I think it was my Dad's as a kid - "101 things a boy can do".

      I can't remember too many of them , but for example one of the 101 things a boy can do is make a paper volcano that spews forth hot "lava" made out of some nasty toxic mercury compound that I guess pharmacists were happy to sell to young boys back then.

    9. Re:Mourning the death of "The Amateur Scientist" by Oggust · · Score: 1
      Kind of!

      In Rocket boys, which is the (highly recommended) book October Sky was based on, the author describes ZnS (aka Micrograin) rockets. In the movie they just used off the shelf Aerotech motors.

      Too bad really; ZnS rockets suck in many different ways, but they are highly photogenic!

      /August

      --
      "An object declared as type _Bool is large enough to store the values 0 and 1." -- 6.1.2.5, C99 standard.
    10. Re:Mourning the death of "The Amateur Scientist" by Anonymous Coward · · Score: 1, Interesting

      That powdered zinc and sulfer rocket propellant is dangerous stuff. It almost killed an entire boy scout explorer troop once. The nozzle on a 4" steel tube blocked during a static test. It cleared with a extremely loud band and a 15' diameter yellow green flash which froze everyone in their tracks. If it hadn't cleared, well...

      What was an explorer troop doing with micropowdered zinc in the 60's? Well, when your troop is sponsered by IBM and the troop leader is an IBM engineer who is a bit of an enthusiastic geek himself and has access to lots of neat stuff through IBM supply channels. We had access to super glue when it had just been invented by Kodak and was like $15/oz in 60's dollars. Lot's of fingers glued to things putting the strain gauges on.

      But on another note, one of the things that has killed experimentation was the resession of the late 80's which killed industrial surplus. Big companies stopped surplussing all the technical equipement and cut way back on manufacturing overruns. Instead of hundreds or thousands of overrun parts, it's down to a dozen or so. Anyone who thinks the MIT flea market is really cool, I'm telling you it's profoundly pathetic compared to the way it used to be.

    11. Re:Mourning the death of "The Amateur Scientist" by markmoss · · Score: 2

      Do a web search for "compressed air" and "cooler" and you'll find a bunch of commercially available vortex devices. Electronics techs sometimes get them to replace the old freeze-spray for troubleshooting. (The original freeze-spray was freon, now banned. I'm not sure what the formulation is now, but it's probably a whole lot worse for your lungs than freon...)

    12. Re:Mourning the death of "The Amateur Scientist" by Amazing+Quantum+Man · · Score: 2

      I seem to recall them looking at an AmSci column to get the initial design (using a washer as the exhaust throttle).

      --
      Fascism starts when the efficiency of the government becomes more important than the rights of the people.
    13. Re:Mourning the death of "The Amateur Scientist" by phliar · · Score: 2
      When I was in high school (circa 1981), I borrowed an old, book-sized anthology of "Amateur Scientist" columns from a friend.
      Don't forget, folks, all the Amateur Scientist columns have been put together into one CD-ROM! The ISBN is 0-9703476-0-X and a bunch of places have it. The columns are all in HTML.

      Those hand-drawn schematics of the experiments are beautiful.

      --
      Unlimited growth == Cancer.
    14. Re:Mourning the death of "The Amateur Scientist" by sconeu · · Score: 2

      No, maybe they used Aerotech for production purposes, but the story had them building their own motors. Remember when they had to go get the moonshine to stir up their solid fuel (air gaps were causing kabooms)?

      --
      General Relativity: Space-time tells matter where to go; Matter tells space-time what shape to be.
  33. Even not so complex is not possible anymore. by MavEtJu · · Score: 3, Informative

    The increased complexity of our gadgets doesn't help either

    Or the (un)availability of not-so-complex devices. (1)

    It's easier to make a funny thing with a cheap Motorola 6800 or a Zilog Z80 than with a Intel586 or AMD K7. Both for the hardware side (it's only 40 pins and 2MHz) as for the software side (just a couple of registers).

    Also, how "easy" is it these days to add an self-developped extensionboard into your computer? The P2000T and MSX had some nice eurocard extension-slots with an easy to use bus. Heck, you even got the full specifications of everything when you bought the computer.

    (1) When I told this on IRC some people responded that I still can mail-order Z80s for AUS$ 20,- (same price as the i386 :-)

    --
    bash$ :(){ :|:&};:
    1. Re:Even not so complex is not possible anymore. by NoMoreNicksLeft · · Score: 2

      Are you kidding? www.jameco.com lists z80's for $1.29 apiece. You can even get the nice 20mhz qfp z80 for $12 something.

    2. Re:Even not so complex is not possible anymore. by Christopher+Thomas · · Score: 3, Informative

      It's easier to make a funny thing with a cheap Motorola 6800 or a Zilog Z80 than with a Intel586 or AMD K7. Both for the hardware side (it's only 40 pins and 2MHz) as for the software side (just a couple of registers).

      You can buy a host of programmable microcontrollers from a variety of vendors; check Digikey's catalog for a sampling. Many of these should adequately substitute for a Z80.

      Also, how "easy" is it these days to add an self-developped extensionboard into your computer?

      Not that hard.

      I was building a project driven off of a parallel port a couple of weeks back. These won't go away for a few years yet, and you can clock them as slowly as you want to.

      You can also still find motherboards with ISA slots for new machines; at 8 MHz or so, you could certainly put something together with a microcontroller and discrete logic that would fit in a standard system.

      If parallel ports and ISA slots disappear down the road... there will be legacy support for the 10 MBit version of USB for quite a while, and the controller for that is simple enough that you could easily build one with a microcontroller and some glue logic.

      In summary, I don't think there will be a problem any time soon.

    3. Re:Even not so complex is not possible anymore. by kinko · · Score: 1

      bash$ :(){ :|:&};:

      Fuck you. Fuck you and your sig. But especially your sig. Thank god I realised immediately what was happening and managed to get to a virtual console and runlevel 6 while I could... and I'm not exactly a novice either...

      I fart in your general direction...
    4. Re:Even not so complex is not possible anymore. by slipgun · · Score: 1

      In summary, I don't think there will be a problem any time soon.

      And of course, once they stop building PCs with ISA slots or serial/parallel ports, there are millions of [80/2/3/4]86 PCs which can be had for beer money.

      --
      SpamNet - a spam blocker that really works
    5. Re:Even not so complex is not possible anymore. by MavEtJu · · Score: 2

      "Hello friend, check these funny pictures I've attached to this message!" :-P

      --
      bash$ :(){ :|:&};:
  34. Not at the chip level. by Anonymous Coward · · Score: 0


    You can build PC's at the board level cheaply, sure...but
    it doesnt require any real skill to assemble a PC.

    Putting together a computer from commodity chips,
    woz-in-his-garage-style, requires some skill - perhaps a year or so of intensive study on digital interfacing, but it -WAS- still within reach of
    hobbyists.

    Of course, that limits you to a sub-20MHz computer, as designing busses much faster than that is more than single-layer PCBs, and kitchen
    table soldering and manucfacturing can be expected
    to deliver.

    Heathkit used to have a number of self-study courses for tacking together 8 and 16-bit low-end
    microcontrollers (6800s, 6809s, 8000-series MPUs)
    I'm sure I've seen them still for sale on a website somewhere. (They also had courses on fiber optics, using SMDs, etc.)

  35. OMG by Anonymous Coward · · Score: 0

    That is so cool.

  36. Forrest Mims and SciAm by John+Miles · · Score: 3, Interesting

    They quickly learned, however, that Mims was an supporter of so-called Scientific Creationism, a movement that attempts to include the creation story of Genesis in biology curricula as a scientifically viable account of human origins.

    This is actually a pretty sad story. Mims's treatment at the hands of Scientific American is an atrocity on par with anything the medieval Catholics could have come up with, at least without resorting to pitchforks and thumbscrews. They certainly guaranteed that at least one agnostic (myself) will never burden their subscription department with correspondence.

    --
    Dahlmann tightly grips the knife, which he may have no idea how to use, and steps out into the plain.
    1. Re:Forrest Mims and SciAm by Anonymous Coward · · Score: 0

      Scientific American ceased to be worth reading around 1990 or so (coincidentally around the time that Walker left....hmmm). They stopped publishing much real science and started publishing a whole lot of PC/postmodern crapola.

      Scientific American: Two lies in one title.

    2. Re:Forrest Mims and SciAm by Anonymous Coward · · Score: 0

      Bullshit.

    3. Re:Forrest Mims and SciAm by Anonymous Coward · · Score: 0

      He deserved it. "Scientific creationism" is a contradiction in terms.

      YOUR LIFE is the ultimate atrocity. Please do the world a favor and die.

      Preferably soon.

    4. Re:Forrest Mims and SciAm by Anonymous Coward · · Score: 0

      You forgot "Bullshit."

    5. Re:Forrest Mims and SciAm by Tackhead · · Score: 4, Interesting
      > He deserved it. "Scientific creationism" is a contradiction in terms.

      Agreed on the latter, but I disagree vehemently on the former.

      Taking Forrest Mims' little paperbacks at Radio Shack for example -- the laws that govern electronics are the same whether God slacked off for six days and pulled an all nighter, or if evolution is correct.

      I fail to see the relevance of his unscientific beliefs with regards to biology if he's writing a column of hands-on science projects. Sometimes smart people make mistakes outside of their area of expertise.

      A similar example would be that of Linus Pauling (winner of the 1954 Nobel Prize for chemistry). It appears that Linus Pauling was just plain wrong about vitamin C. This in no way invalidates his other outstanding work as a chemist.

      The difference is that Pauling wasn't raked over the coals for being wrong about one particular thing, and Mims was. IMNSHO, so long as Mims kept his creationist beliefs out of his electronics columns (and I can't imagine any project which would require us knowing about them :-), Mims' treatment was unjust.

    6. Re:Forrest Mims and SciAm by Anonymous Coward · · Score: 0

      The reason SciAm got rid of Mims was that he was pro-life. This made him unable to teach the facts of the Theory of Evolution.

      I guess diversity of viewpoint is for others, not SciAm. Dropped my subscription so afterward.

    7. Re:Forrest Mims and SciAm by markmoss · · Score: 2

      Mims's treatment at the hands of Scientific American is an atrocity on par with anything the medieval Catholics could have come up with, at least without resorting to pitchforks and thumbscrews. They just fired him, they didn't burn him at the stake. Or hang him, which many 17th and 18th century protestants were prone to do to other types of protestants. Or even lock him up until he recanted, like Galileo.

      "Scientific creationism" is an oxymoron. No serious scientific journal would want to be associated with it -- and neither would the wannabe SA. ;-) However, as long as it was kept out of the magazine columns, Mims' beliefs were not their business. And note that the editors _job_ is to read and correct everything before it gets printed -- Mims couldn't slip something embarrassing past them if he wanted to, and I should note that I have read several books by Mims and never knew about his religion. Mims might have been uncomfortable writing a column about fossil-hunting -- but that's one activity amateurs should avoid, IMO. I read "The Amateur Scientist" every month since about 1965 and I don't recall that anything dealing with fossils was ever in it.

      Uncalled for religious discrimination, yes. Atrocity, no.

    8. Re:Forrest Mims and SciAm by John+Miles · · Score: 2, Insightful

      Their action might have been more justifiable if Mims had a history of espousing his Christian views at inappropriate times and places. But he didn't. So in a sense, they punished him for thoughtcrime.

      As an AC pointed out earlier, SciAm's behavior was neither "scientific" nor "American."

      --
      Dahlmann tightly grips the knife, which he may have no idea how to use, and steps out into the plain.
    9. Re:Forrest Mims and SciAm by John+Miles · · Score: 3, Insightful

      Uncalled for religious discrimination, yes. Atrocity, no.

      Maybe, maybe not. I used that term because as scientists in the public eye, the editors of a major, consumer-accessible science magazine have a special obligation to behave in a way that's above reproach, scientifically speaking. When they fail to do so in such a blatant manner, it's at least a potential "atrocity" on the Pons and Fleischmann scale -- an event with substantial negative implications for the reputation of science as a whole.

      Heck, one of the three inventors of the transistor was practically a card-carrying Nazi, but that didn't stop the Nobel Committee from awarding them their justly-earned physics prize. If a committee with a substantial contingent of Jews and ethnic minorities could deal with a certified asshole like Shockley, it wasn't unreasonable for the SciAm editors to do the same for a man who, in addition to being a well-known and popular science writer, has a reputation as a decent, agreeable, and generally unlikely-to-embarrass-his-associates fellow.

      --
      Dahlmann tightly grips the knife, which he may have no idea how to use, and steps out into the plain.
  37. The DIY spirit is still alive for this guy... by Ryu2 · · Score: 4, Interesting

    DIY nuclear reactor, no joke.

    He almost turned his backyard into a federal toxic waste site, and shortened his life by 5 years or so, but hey, it almost worked! :-)

    --
    There's 10 types of people in this world, those who understand binary and those who don't.
    1. Re:The DIY spirit is still alive for this guy... by Raetsel · · Score: 3, Interesting

      Ah, yes... the infamous "Radioactive Boy Scout."

      He even made Slashdot nearly a year ago.

      Back then, he was enlisted in the Navy... If I figure right, his first term should be up by now. Anyone have a status update for us? How's he doing? (Pathwalker, perhaps you have an inside track? You went to high school with him...)

      Certainly one of the dirtier home science projects... at least from a radiological point of view. Look on the bright side, though: At least he got help cleaning it up!

      --

      "...America's great minds of today, teaching America's great minds of tomorrow. Poor bastards." -- A Beautiful Min
    2. Re:The DIY spirit is still alive for this guy... by sahala · · Score: 2
      Has anyone else read this and felt extreme sympathy for the 17 year old kid who tried to build a breeder reactor? The guy had endless amounts of curiousity and intelligence and his story ends rather dissapointingly.

      I apologize for giving anything away from the above article, but I don't understand why he wasn't recruited into some of the nation's top research labs doing positive things for society. Hell, I'd put him in a research lab with gobs of funding doing whatever the hell he wants....

      Intelligence is a terrible thing to waste.

    3. Re:The DIY spirit is still alive for this guy... by jasontheking · · Score: 1

      I have a problem with standing next to people who glow in the dark.

    4. Re:The DIY spirit is still alive for this guy... by GigsVT · · Score: 2

      It was just a kid that piled up a bunch of radioactive chemicals, as far as I can tell from verious reports.

      Some parts of his story don't check out, so I think there is a lot of exaggeration going on.

      --
      I've had enough abrasive sigs. Kittens are cute and fuzzy.
    5. Re:The DIY spirit is still alive for this guy... by Orangedog_on_crack · · Score: 1

      Aside from the radioactive material, a lot of his extra curricular activities mirrored my own when I was a teenager in the mid 80's. I leaned how to make gun powder and zinc oxide mesh concoctions at 14. My 8th grade science teacher was less than pleased when I learned how to make nitrigen triiodide, pulled out his desk drawer before class and painted the back of it with the stuff, leaving the drawer open a few inches so he would be certain to shut it upon arriving to class. The drawer shot clean out of his desk and without missing a beat, he yelled my name and told me to get down to the office. I don't know how old the boy scout was when he was making moonshine. I was about 15 years old when I put one together from "appropriated" lab equipment. I think he would be about 24 or 25 by now. That was about the time I finally decided to be a liitle more serious about the future. Sadly it took the death of friend to convince me that I wasn't going to be in my 20's forever and that (gasp!) both I and the little group I hung out with really were not immortal after all. I wonder how this guy turned out.

    6. Re:The DIY spirit is still alive for this guy... by 56ker · · Score: 2

      "When asked, most mumble something about a chemical spill."

      Ah - that old government coverup line! :o)

  38. not to be picky, but by Anonymous Coward · · Score: 0

    You don't solder on a breadboard, hon. You solder on a circuit board... breadboards have holes in them you just stick things into.

    this smart comment was brought to you by chyx.org

    1. Re:not to be picky, but by PD · · Score: 1

      You DO solder on a breadboard. You can also wirewrap the thing. Or you can wrap and solder it if you like. The thing that you just plug parts into is called a solderless breadboard. A breadboard is just a board with holes in it.

    2. Re:not to be picky, but by Anonymous Coward · · Score: 0

      >A breadboard is just a board with holes in it.

      Perhaps so, but the holes on plain breadboards don't come with copper pads. Add those and it becomes a vero board or PC Breadboard.

      That and usually only the cheap chinese knockoff breadboards have the entire "Solderless Breadboard" printed on them, since that's the only thing they do right (ie: The inability to solder on them). Your normal, everyday company refers to solderless breadboards as plain breadboards.

      You still can't solder to a breadboard unless it has a modifier before it (getting the flux to stick to it doesn't count!).

  39. My favorite was... by Neil+Blender · · Score: 1


    a scale that could measure weight down to a few millionths of a gram.

  40. I disagree. by red_gnom · · Score: 5, Informative
    I strongly disagree that it is cheaper to buy a telescope, than to make it by yourself. There is no way "ready to buy" telescopes could come close to the quality of image you can get with home made dobsonian telescopes in the same price category.

    dobplans

    Build Your Own 4 Inch Dobsonian Telescope

    Telescope Making

    Dobsonian Evolution

    Small Dob Web Site

    I built my own Dobsonian!!

    1. Re:I disagree. by Kris_J · · Score: 2
      For me it's not the price it's the fact that I live in a highly light-polluted city. From my back yard on the average night I could probably only see the 20 brightest stars. Maybe 50.

      I'd also love to get into alternative power, but my property is filled with tall trees, meaning I can use neither solar panels (shade) nor wind turbines (turbulence).

      The city has turned me into a collector, not a creator.

    2. Re:I disagree. by zenspider · · Score: 1

      Regardless, his point is valid simply because that is the public perception of the situation. Yes, it may be cheaper to build your own, but if the public is actually swayed by the marketing, and believe it to not be the case, then it doesn't matter what the truth is.

    3. Re:I disagree. by jesterzog · · Score: 3, Interesting

      I'll concede that there are lots of people buying telescopes today compared with what there were a while ago, but as someone who's on the organising committee of an astronomical society, most of the people I see doing this are people who wouldn't have had one at all some time ago. The main reason they purchased a cheap telescope from a dealer, who incidently knew nothing about astronomy or telescopes, is because they also knew very little about astronomy. There are occasional exceptions, but when you buy a cheap telescope, you're usually sacrificing quality optics, and many who joined the society later discovered that the they'd purchased wasn't everything they wanted in the end.

      On the other hand, nearly everyone who obtained a telescope after being a member for a few months has found it much more economical to either build their own, or have someone else do it. This doesn't mean they always do, because sometimes people want a more expensive commercial scope for doing more advanced stuff. There's so much you can do with a homebuilt dobsonian though, that most people have one at some point.

      The seven or eight telescope building experts in the region probably each know more about telescope building than all of the commercial dealers put together. In most cases, they're in their own part time business of grinding high quality mirrors (or lenses) which they on-sell to amateur astronomers keen on building the rest of the scope themselves. People go to them because they provide higher quality equipment than most cheap machine-made equipment.

    4. Re:I disagree. by pease1 · · Score: 3, Interesting
      I agree to disagree. I've built many telescopes over the past 20 years and almost always build them cheaper then I could have bought them.

      There are more manufacturers out there, now. That's a good thing since people who don't have the time can at least get in the hobby and even contribute to science.

      And anyone who complains they aren't into astronomy because they live in the city and have to deal with light pollution, doesn't understand the hobby, the science and the technology completely.

      You can build your own telescope, your own CCD camera, and a cheap PC to run it and do some great science and take some great pretty pictures all from a very light polluted area.

    5. Re:I disagree. by leifb · · Score: 1

      Like running Linux, doing it yourself is only cheaper if your time is worth suuficiently little.

    6. Re:I disagree. by outofoptions · · Score: 1

      I am probably a little late on this thread. I build my own telescopes because good ones cost alot more than I can pay. The quality of most commerically produced telecopes is quite low. I know. I have looked through them. Their owners don't want to hear it. :) But this IS science. These things can be tested. There is an ATM list of over 1800 folks from around the world. I host the http://atmsite.org page. Take a look. The "quasi professional" does apply to many of us though. But that is what happens when hobby becomes passion.

    7. Re:I disagree. by Tablizer · · Score: 1

      (* I strongly disagree that it is cheaper to buy a telescope, than to make it by yourself. There is no way "ready to buy" telescopes could come close to the quality of image you can get with home made dobsonian telescopes in the same price category. *)

      Are you factoring in your own labor costs?

  41. open source analogy by Kircle · · Score: 1

    Umm...first of all, I don't think the article made any mention of open source. But then again, I suppose one can argue that open source programmers are very much like those amateur scientists. You have a bunch of people who aren't satisfied with the current crop of software, so they decided to build they're own to satisfy a personal curiosity or for just wanting better software.

    Which begs the question, how far does this analogy extend? Will we see in a few decades open source losing a lot of its benefits, simply due to companies making better software?

    --

    -- Kircle

  42. from the bad-spelling dept. by Anonymous Coward · · Score: 0

    There is a crucial difference between "then" and "than," a difference which I strongly urge the slashdot editors to learn.

  43. hours of fun! by Anonymous Coward · · Score: 0



    Heh. Once, I created a working AM radio
    not following the directions in the book BTW :) wntirely that could pick up KYW (Philly)
    real well. I had it hooked to the metal
    radiator pipe in my bedroom. Ofcourse, being
    just a couple miles away from the transmitter helped. Ahh the good old days. I would add
    tons of features to the example projects in
    the book, and sometimes take other
    electronic toys and wire them in too. Once, I
    had a toy robot and a thermometer/alarm clock hooked up to it. I went through many of the plastic 200 in One kits. Usualy, I would manage to burn out all of the LEDs on the unit, shortly after I got it, and usualy it's life would end shortly after the frame came apart :)

    Oh, anybody remember the "UFO" game/project
    for the 200 in 1 models?

    1. Re:hours of fun! by Anonymous Coward · · Score: 0

      For that matter, did anyone do "mods" to
      their kits, such as adding a backlight to the
      anolog meter?

  44. Soldering Surface Mount isn't that hard. by TechyImmigrant · · Score: 3, Informative

    > (Ever tried to fix surface mount components with a soldering iron at your kitchen table? Don't!!)

    I've always found that working with SMT is easier than through hole. You have gravity on your side. It will hold the component on the pad while you tack it in place.

    Just use a decent soldering iron that has a small enough tip and don't make the mistake of using too small a tip. A too small tip doesn't hold enough heat to flow the solder onto larger SMT pins.

    Also make good use of brush on flux and desolder braid. They are your friends when reworking SMT boards.

    When laying out your own PCB, SMT components let you get away with drilling far fewer holes and zero ohm resistors let you 'jump' over tracks without using vias.

    When it comes to probing, all your signals are generally available on one side. Most SMT parts (except BGA and LCC styles) don't shroud their leads like stand-up electrolytics and transistors do.

    One of the primary barriers to messing with this sort of stuff in America is the crappiness of component supply for the hobbyist. I have yet to see anything that comes close to the likes of Radio Spares or Farnell in the UK.

    --
    I should use this sig to advertise my book ISBN-13 : 978-1501515132.
    1. Re:Soldering Surface Mount isn't that hard. by mj01nir · · Score: 2

      Yup surface mount soldering really isn't that hard once you've done it a few times. I always used a temp-controlled solder iron with a very fine tip. I burnt through tips fairly often, but having that precise control of the heat was needed. Never really used extra flux, but solder wick was a life-saver. So was the dental pick that I used to gently pry up the corners of chips while blasting away with a heat gun (yes, the same type that is used to remove paint). With some ultra-fine solder, I could solder the chip on so clean it hardly looked like it had been replaced. Ahh the good old days! :^)

      --
      the no .sig .sig
    2. Re:Soldering Surface Mount isn't that hard. by Anonymous Coward · · Score: 0

      SMT chips are easier to remove from the board than DIP ones. I've repaired several modems (damaged by lightening) successfully, and all of them were built with SMT.

  45. My take by resistor2004 · · Score: 1

    I was born in 1986, and had a DIY radio kit. But my Apple ][ swiftly displaced it based sheerly on what it could do. And, while I have tinkered with EE some over the years, I still remain much more interested computers. I believe that amateur computing and computer science have displace EE and amateur science.

  46. lawyers got in the way. by abburdlen · · Score: 2, Insightful

    You can't get many supplies for the hobbyist lab anymore. Lawyers and politicians have made it too difficult.
    "Sorry can't sell you that, could be used to make illegal drugs." or "Sorry we don't sell that; you could get hurt and sue us." and "We use to sell that but can't anymore, forbids it."
    And let's not forget the ever-present terrorist threat. Anyone with chemicals in their household more elaborate than vinegar must be working with terrorists.

  47. Re:Those Electronic Kits - Jameco by Bowfinger · · Score: 2
    Jameco Electronics still has dozens of simple to moderate electronics kits, plus breadboards, complete selection of components, Basic Stamps, etc. They also have a modest selection of computer parts. Unlike some of their peers of the day, e.g., DigiKey and Mouser Electronics, Jameco still caters to hobbyists*.

    If I remember right, Jameco's online site only has a subset of their inventory. For maximum browsing enjoyment, get their dead-tree catalog.

    Great company, highly recommended. I've ordered from them on and off since I was in high school, way back in the 70's. (That's back when people still played with electronics as a hobby, and Edmund Scientific had some of the coolest, most exotic stuff I'd ever seen.)

    *DigiKey and Mouser are more focused on commercial users, but they're great sources for hard-to-find parts, or a specific variant of a part.

  48. I don't believe so. by cdf12345 · · Score: 2, Interesting

    This is complete opposite of the article in Newsweek article I just read. The "welcome back to sillicon valley" issue. Which basically stated that the fall in the economy and the layoff of thousdand of workers in the tech field would allow many people with skills time to mess with current technology. They are predicting an increase in innovation like tech boom in the early to mid 90s. The interesting thing is that sure, there are less magazines dedicated to "tinkering" however I believe they have been replaced by various websites which are much cheaper to produce and maintain.

    One example was the 802.11 wireless standard, how over the last few years what was considered junk bandwidth was embraced by radio hobbiests and made cheap by innovative manufacturing.

    I believe that while the economy was good, everyone had a "look what I can get for free" mentality. Now that we've seen the downturn, I believe we see a more "What cool things can I do with the tech I already have" attitude.

    I know presonally I've found myself doing that recently.

    So to say DIY is dead, I believe it was hibernating, and it's about to wake back up for spring.

    --
    Chicago2600.net more than a lifestyle, its a survival trait.
  49. Re:Funny... by DarkZero · · Score: 2

    Did you even read the /. blurb, let alone the article? This is (part) about the fact that newer electronics components cannot be messed with by an amateur hobbyist because of their complexity. Somehow, I don't think of a COMMODORE 64 as a "newer electronics component".

  50. Working with surface mount devices by Animats · · Score: 2
    Sure, you can do it at home. Here's how. All you need is a stereo microscope, a hot air soldering station, and really good tweezers. A few thousand dollars, but not too bad. And you have to have custom PC boards made for everything, which you do by designing them with a PC board layout program and having them manufactured by a prototype house. About $100 a pop.

    Soldering irons will just barely work. Reliable work requires a hot-air soldering station, with a set of air guides for every shape of chip you're dealing with. And you probably have to take a soldering course to get your skills up to par.

    Last year, I finally gave up hardware and boxed up the electronics tools and parts.

    1. Re:Working with surface mount devices by mamba-mamba · · Score: 1

      Hot-air soldering station? Proto-house? I don't think you need all that.

      I am an EE (laid-off) but for the last two years I worked on designing SMT single-board computers. Very dense, 12-layer, Intel-based boards. I also had to bring up and debug them. And after we layed-off our technician, I had to do the re-work, too. The only thing you can't really re-work with a soldering iron is a BGA. Sometimes you can cut traces on the BGA itself, but that is a REAL pain.

      I will grant you that a microscope is just about essential for really fine-pitch parts.

      Also, devices with lots of pins can be a pain to remove if you don't have the right tools, but you can always bend all the pins up, one at a time, until the chip is free. Get as much solder off as you can using braid, first.

      With up to eight-pin parts, you can often get them off with two soldering irons, one in each hand. Just glob solder on the pins until they are all connected together, then lift the part right off of the board.

      And you can still make single- or double-sided boards yourself, same as you ever could. No need to go to a proto-house. As someone said earlier, just use zero-ohm resistors to jump over traces, and you'd be surprised what you can do on one or two layers.

      MM
      --

      --
      By including this sig, the copyright holders of this work or collection unreservedly place it in the public domain.
    2. Re:Working with surface mount devices by Aos · · Score: 1

      Not at all true. I solder tons of tiny SMD in last half-year using only regular iron (not even temp controlled!) and home-made PCBs, and a good loupe. I designed and built a portable digital-to-analog convertor (for audio), in several prototypes.

  51. Re:A Bygone Era? Probably not. by Stephen+VanDahm · · Score: 4, Interesting

    For some people, the construction of the equipment is the whole point. And while I'm sure some DIY hobbies are in decline, others have absolutely taken off in recent years.

    I never got into building electronic stuff, but I'm interested in building guitars. Lately, I've been itching to build my own guitar amp. There is even a website devoted to it. Thanks to the numerous web resources out there, I can learn to build all sorts of crazy things that I never could have figured out on my own.

    I suspect that the people that like soldering electronic gizmos together in their garage are still around, just doing different things. A surprising number of the amatuer guitar builders are techies, for instance. There's a whole lot of awesome stuff left to build, so I don't think that people are hanging up their soldering irons yet.

    Steve

  52. Re:Those Electronic Kits - Jameco by digitalunity · · Score: 2

    Your wrong about Mouser. I use them frequently and rarely need more than 2 or three parts. My average order price is probably about $10. Their entire catalog is available online too :)

    --
    You can't legislate goodness. Let each to his own destiny, by will of his freely made choices.
  53. Not just science.... by os2fan · · Score: 2
    In the early 1980's, writing addin functions for things like Lotus 1-2-3 and the like was a big deal. PC-Mag had debug scripts for users to create their own scripts for nifty little utilities.

    Now-a-days, macros are hived off to another area, and we're supposed to learn VirusBasic for Applications, and their woofy interface and use long commands like "CallApplicationFunctionInExcel()" in order to do any automation.

    Basically, I just leave VBA for the script kiddies now. Never could make head nor tail of it.

    On the other hand, leave me alone with some REXX and a ascii format, and since it's my baby, I understand it and make it do nice things.

    Still, my hobbyist science is plowing into new world research :), so there's plenty of noonosphere to claim.

    --
    OS/2 - because choice is a terrible thing to waste.
  54. They have the "BASIC Stamp" now for this by Anonymous Coward · · Score: 1, Insightful

    BASIC on a chip with a few inputs and outputs.
    I think they cost $10/each or $1 in quantities of a thousand.

  55. Amateur radio by OverCode@work · · Score: 3, Insightful

    This is hitting amateur radio hard. Most hams purchase their equipment these days; it's nearly impossible to obtain modern levels of performance on home built transceivers. (Well, that's a generalization; antennas are often homebuilt, and some diehards do build their own rigs.)

    Why would people trade images with SSTV (slow scan TV, basically a codec for TV-resolution images sent over the radio) when they can email jpegs? For the most part, the people who do it are just in it for entertainment, not utility.

    There is still room for tweaking; in fact, the amateur radio community strongly encourages it. Radios still usually come with complete schematics (pages and pages of schematics, in the case of some of the larger units in the local radio club's shack). But it's pretty uncommon to pull out the soldering iron these days and work on the actual equipment.

    Better or worse? Neither. There will always be a small segment of the population that finds any given field (astronomy, radio, etc) exciting. New technology will just change their focus, but the interest is unlikely to go away.

    -John, KG4RUO

    1. Re:Amateur radio by Shortwave · · Score: 2, Informative

      That's true for most of amateur radio like you said. But go check out the QRP guys. They are truly the next revolution. Making it real again.

      The receiver section in the Red Hot 20 I just built pretty much holds it own or kicks the crap out of anything that is commercial. The designer just kicked butt. Plus, I learned a ton about RF electronics.


      Red Hot Radio


      Plus don't get me started about the K2. High performance direct conversion receiver that has some serious mojo....and I'm going build it next!! yeehaw!!


      K2 and Elecraft site


      Go check out the QRP guys. Get on QRP-L or just go through the archives on the web. Those guys are just RF ninja masters (well, at least a few of them).

      The commercial guys never get it. They want to build stuff that is all things to all people.

      Melt Solder!!!
      Snort Rosin!!!

  56. Q: Can a Skilled Amateur Make a Mobo From Parts? by jck2000 · · Score: 1

    See title.

  57. missing the meaning of science by Beckman · · Score: 1
    I think that many people here, and in general, are missing the point to science. Science isn't about building equipment at home. It is about understanding the body of knowledge and the many flaws in the current explanation for how the world works. If you're creative and capable, you then postulate a correction to the current theory, and look for an experiment that will demonstrate that you're correction offers some benefit.

    We can build automated systems to search for comets, but we can't (yet :-) ) build a machine to replace the human creative element.

    The real limit for the amateur is the ever growing body of knowledge and the complexity of the theories. At the present, to really understand how a semiconducting circuit works requires significant understanding of both physics and mathematics. Biology and astronomy are both taking a more mathematical bend now as well. I'm not saying that it's impossible for the home amateur to participate and contribute, but it's becoming more formidable.

    On the positive side, the ease of access to journal articles has improved significantly (I think) so building a background in the literature not impossible.

  58. Autocoding is an open and ready field by 3seas · · Score: 2

    The ability to automate complexity in order to make it simple to use over and over is the task of programming but the task of automating that process has been lacking.

    It's not that we don't know what the collection of functionality needed is to make this possible on a broad scale, from typicaly users to hard core autocoders...

    for a beginning point of autocoding See the nine action constants ...

    This is a field really open for fresh blood as the old blood has to much vested interest in the way things are done and also to set in their ways.

    Where autocoding can be found in industry is in areospace. Funny but you'd think it would be more kitchen table and evolve from there. Perhaps that suggest it's time to bring it to the kitchen table.

    It's not that kitchen table scientist have slowed, but more a matter of what to explore and experiment with next, as it's clear alot has already been done to the point of cheap throwaway stuff what what we have had on the kitchen table in the not so distant past.

    We just need new subject matter to deal with. Autocoding and user level automation is ready.

    1. Re:Autocoding is an open and ready field by Anonymous Coward · · Score: 0

      Broken link:

      Not Found

      The requested URL /~timrue/ was not found on this server.

    2. Re:Autocoding is an open and ready field by 3seas · · Score: 2

      oops!

      transposed a couple letters in the ISP URL

      That should get you there, now.

  59. DIY is hardly dead by Phase+Shifter · · Score: 1

    How about a do-it-yourself scanning tunnelling microscope? Or does that not qualify for some reason I don't understand?

  60. Difficulty is relative... by ChrisKnight · · Score: 3, Insightful

    > (Ever tried to fix surface mount components
    > with a soldering iron at your kitchen table?
    > Don't!!)

    Why not?

    I just soldered a couple of surface mount memory chips into my Tivo. Sure, the days of using a $12 Radio Shack soldering iron are long gone, but there are inexpensive Weller soldering irons that are well suited to todays ambitions hobiest.

    Telling someone not to make that surface mount repair is adding to the very problem you are complaining about. Don't encourage people to be afraid to experiment and learn. You may not be able to make that repair, but that doesn't mean someone else can't.

    -Chris

    --
    -- This sig is only a test. If this were a real sig it would say something witty. --
  61. Re:A Bygone Era? Probably not. by LinuxInDallas · · Score: 2, Insightful

    I agree. As has been mentioned on here in the past, the days of the garage shop startups like hewlett/packard is long gone. With all of the specialized hardware and test equipment required to develop anything of any signifigance it would be crazy to think someone would finance it on their own. Back in the day you might be able to produce a good wirewrap of a then high-speed circuit but what about now? A lot of items need to go straight from computer design to PCB to make sure noise is low, propagation delays are matched, etc...

    My thinking is that the DIY people of this century will be working almost entirely in software. After all, the open source community is really just a community of DIYs.

  62. Re:Those Electronic Kits - Jameco by NoMoreNicksLeft · · Score: 2

    I wince every time I see a Digikey price. Try www.meci.com too, they're underrated. They have some of the weird connectors that I can't get anywhere else unless I'm willing to buy qty 10,000 and wait 12 weeks lead time.

  63. Not completely gone... by constantnormal · · Score: 2, Insightful

    ... just shifted to different areas.

    The essential learning aspect of the hobbyist modality is captured pretty well by the LEGO Mindstorms robotics toys(?). While it's true that machine language is a lost art, as is the construction of simple electronic devices, there are new frontiers available today that were not practical in days gone by.

    Maybe in another decade or two we'll have do-it-yourself genetic tinkering...

    1. Re:Not completely gone... by Anonymous Coward · · Score: 0

      "Grow a bigger penis!" -- spam, or legitimate advert for DIY gene-hacking?

  64. Materials Simulation by Dr.+Weird · · Score: 1

    There are a number of packages for simulating chemicals/compounds/solids/liquids/etc. for semi-reasonable prices (certainly as cheap as a nice telescope). If one so desired, he could easily play around with simulations of materials all day. Curious about what tweaking a conducting polymer can do? Use VASP, TINKER, or some other first-principles code. It's computationally expensive, but with some patience alot can be done. Also, there are some free molecular dynamics packages (I believe) so you can actually simulate the movement of all kinds of things. One can see all kinds of neat behavior in things this way.

  65. Akihabara by ctar · · Score: 1

    Its really a shame that hobby shops; for electronics and PC DIYers are so scarce in the US. Akihabara in Tokyo is a GEM for all sorts of amateur and professional Do-It-Yourselfers. Many of the large computer stores will have parts sections with a choice of over 20 different motherboards, and even more choices for all other types of hardware.

    I don't know much about electronics, but I know you can get anything you need. There are even multiple stores selling vintage vacuum tubes.

  66. Re:Funny... by NoMoreNicksLeft · · Score: 2

    Not so. My successes have been few, and weak... but I'm getting there. Surface mount isn't so tough to solder... it's designing the damn layout in the first place, and paying for a prototype pcb. Personally, I won't be satisfied until I'm capable of designing and building my own PCI card, even if it is some lame 16550 serial port or something.

  67. DIY is very much alive here at /. by i_want_you_to_throw_ · · Score: 2, Informative

    I, like most of us here at /. , used to be an electronics enthusiast. I remember TAB books and books on crystal radios and so on.

    I have however, see more interesting DIY here at /. than in any books.

    What is more DIY than building your own No click mouse or how about Mini PCs w/o fans?

    Admittedly you won't see the actual plans hosted on /. but I would never have guessed that you could Stream RealAudio from a Commodore 64?!!!!!. I wouldn't even know such a thing could be done until stumbling across at /. and seeing some geek blazing trails that are SO far out to be unbelievable sometimes (like anything with a C64!) That's more original and trail blazing than any of the old "build your own radio set" projects.

    Anytime you wanna see DIY just go to the Hardware section.

    It's right under your nose (which is under your CRT bloodshot eyes)

  68. It has always been by Joel+Ironstone · · Score: 2, Interesting

    "Declining manufacturing costs now make it cheaper to buy a telescope, radio, or computer than to build one yourself."

    It has always been cheaper to buy things like radios than to make them. Otherwise people would make them and sell them for less than the market price, and the market price would go down.

    Cheaply available components that result from better manufacturing methods etc. allow children and hobbyists to perform more complex experiments and create more elaborate designs than was ever possible before.

    If you get yourself a programmable logic developper's kit, you can design, with the same tools as professionals, anything from internet routers to microcomputers to cell phones and just abotu anything your heart desires, including specialized scientific analysis equipement.

    try: http://www.latticesemi.com/

    They also provide an analog version. wiring a digital and an analog programmable device together gives you the flexibility to design just about any sub-100 Mhz device out there. Heck I'm sure you could procure some old schematics for ancient CPU's and actaully make them yourself.

  69. Repair vs. Replace by CatPieMan · · Score: 1
    One of the other problems with products becoming cheap is that it is often cheaper to replace rather than to repair. Old computers can be expensive to replace -- especially parts for laptops (and even more especially if the screen goes bad).

    For instance, at one point, we had a vacuum cleaner (from elextrolux) from around 1978. That thing worked great until the mid-90's (when some of the electronics went bad). I was able to repair the switch (with a replacement), but, if I was unable to do so, the repair costs would have been ~US$250. To buy a new vacuum cleaner would run ~US$150 (I think). With these new ones, they are really complex (comparitivly speaking) than the old ones (and harder to open).

    So, the whole problem here is, do you try to fix, or just replace. This probably doesn't make much sence, but, I hope that my point is at least somewhat comprehended.


    -CPM

    --
    ---You're all I need, When the water runs deep, You're all I need, Now I cry my soul to sleep -- Collective Soul, Needs
  70. Heath kit TVs by Bluetick · · Score: 1

    I still have one of the last Heath kit TVs from about ten to twelves years ago. Made it with my dad back then, didn't understand what the hell what he was doing, but that was fun. I still use it all the time, the picture's not so great, and it's pretty small (9" screen). But, I guess I have some attachment to the little bugger. Cool thing indeed.

  71. Re:A Bygone Era? Probably not. by Benjamin0001 · · Score: 2, Insightful

    I have had a hunch that it was slowing. I mean you can still do all the electronic tinkering you want. What I think is lacking is new Tools. I mean everyone has power supplies,oscilliscopes,DMM, and components. But I think what are also needed is some sort of Numerical Control for soldering VLSI/ULSI componenets onto boards, something that is impossible with a soldiering iron. That one tool If done cheaply and inexpensively could produce the break through to Electronic Hobbyist using DSP's, and uProcossors above the 6811 and Z80's. What could come after that?? Photo/chemical deposition of new circuits to buid new devices in your garage??? That would help as well. But if Amatuer engineering is on the decline than we in 5-7 years will see a massive shortage of electrical engineers at least from America. I don't know any EE today that wasn't into electronics as a hobby before they actually got their degree. Perhas it will be Robotics (not actual robots but just their industrial/numerical control counterparts) that will jump the gap and put modern technology back into the realm of the hobbyist?? Just my .02c Ben

  72. Build a breeder reactor in your shed by Etcetera · · Score: 2, Interesting


    Now how can you honestly say D.I.Y. is dead when young boy scouts are still doing things like this for their badges =)

    http://www.findarticles.com/cf_0/m1111/n1782_v297/ 21281407/p1/article.jhtml

    (on a serious note, I agree with the article - and it's a very sad trend to see happen)

  73. What I want to know is... by KidIcarus · · Score: 1

    Can I, as an amateur computer scientist, claim a tax deduction on the "computer lab" I've set up in my apartment? That would be sweet. I use it to fascilitate my research into the storage and retrieval of vast amounts of porn... err ...I mean archival image files.

    1. Re:What I want to know is... by maxpublic · · Score: 1

      I don't know about that, but if you're a 'writer' (even if you don't manage to sell anything) you can claim every bloody piece of equipment even remotely related to your computer as a deduction or business expense. If you write about 'technology' then you can do the same for just about anything that at some point requires electricity to operate. If you also review 'computer games' then those too become deductible.

      Become a writer. Submit an article or two a year to some magazine, no matter how bad they are (hey! Even John Katz gets published so who knows?). Buy toys and use them to lower your taxes. Have fun. :-)

      Max

      --
      My god carries a hammer. Your god died nailed to a tree. Any questions?
    2. Re:What I want to know is... by Anonymous Coward · · Score: 0

      If you don't make a profit in three out of five years, your loss will be declared a hobby loss, you will be audited, and you will pay heavy fines and interest to the government.

    3. Re:What I want to know is... by Anonymous Coward · · Score: 0

      you know... taxes are there for a reason

    4. Re:What I want to know is... by America+Uber+Alles · · Score: 0

      taxes are there for a reason

      To get money from people who don't know better?

    5. Re:What I want to know is... by maxpublic · · Score: 1

      Not true. You can declare it as a business loss if you fail to make a profit. All you really need is 'proof of intent' which is why I suggested submitting articles a few times a year *even if they get rejected*. This shows an attempt to make your business work - and a failure.

      A failed business venture does not a hobby make.

      Max

      --
      My god carries a hammer. Your god died nailed to a tree. Any questions?
    6. Re:What I want to know is... by Anonymous Coward · · Score: 0

      Can I, as an amateur computer scientist, claim a tax deduction on the "computer lab" I've set up in my apartment?

      Actually, you can. However, after several years of not showing a profit at your computer science business, the IRS will shut you down and deny the deductions.

      Another good tact is "multimedia artist" -- that way you can write off your TV, DVD, Sat service, etc.

  74. sci am calling the kettle a rusty son of a bitch.. by spasm · · Score: 1

    Kind of ironic that SciAm is wailing about the demise of the hobbyist magazine - they themselves used to be one of the pre-eminent tinkerer's magazines before a change in ownership in 1948

    It's fairly natural to see any particular field go from producing information exchanges (and prior to the 'net, this pretty mich mean magazines) adressing the nuts and bolts of pursuing the field to producing information exchnages which largely address the contemporary problems to which the field is being applied.

    Ever since that halfwit in the US patent office said "there's nothing left to be invented" at the turn of the century people have said that there was no longer a role for garage engineering in the advancement of technology. As we've seen repeatedly since, there are always new fields which depend for key bursts of work on people who use too much speed and can't find the key to the garage door. The only thing that's changed in recent years is the switch to the internet as a forum for trading ideas and techniques, hence the apparent dissappearance of the qunitisential tinkerer's magazine.

  75. This is present in EE too by Anonymous Coward · · Score: 1, Interesting

    How many of us were at one time EE hackers? I know this is how I got started as a youth. The problem is, back then a batch of TTL logic gates could actually yield a neat cutting-edge device. Now, however, newer construction technologies -- SMT, BGA (especially BGA) are making it impossible for the hobbiest EE to use their home-made PCBs to make anything.

    BGAs, for those of you who don't know, are evil little packages for ICs which just have little bumps on the bottom. You line them up with the pads on the PCB and then heat the entire thing in an oven to solder. This results in even higher-density components -- great for your cell phone, but impossible to do with your home equipment. To check alignment you need a special x-ray machine!!!

    Perhaps it may be the packaging that does away with hobbiest EE...

  76. the real reason by Anonymous Coward · · Score: 1, Interesting

    I think the real reason is that it's hard to get specs for new products, especially for electronic products. With all the patents, NDAs, and other paranoia for protecting intellectual property, it's harder for someone to do this kind of hobby, it would cost you more money (you probably need to pay royalties) or spend more time (you might have to restort reverse-engineering to get the specs).

    We consumers should fully support companies who release their specs openly and encourage others to be open as it hinders progress.

  77. THE AMATEUR SCIENTIST ON CD-ROM by djimmah · · Score: 1

    Looks like a great collection. Young kids still need to start somewhere. They don't call it 'catching', they call it 'fishing'. All the fun is getting there!

    1. Re:THE AMATEUR SCIENTIST ON CD-ROM by djimmah · · Score: 1

      http://www.surplusshed.com/closeouts.cfm is the link I forgot to add.

  78. Re:A Bygone Era? Probably not. by i_am_nitrogen · · Score: 2

    What you're suggesting is that there will never again be another electronics company, and that we'll have to live with the giants we have now (that and startups out of college by rich peoples kids). While probably true, I have a hard time accepting that some entrepreneuring individual working out of a garage couldn't revolutionize the world once again.

  79. Getting "hard" in ridiculous ways by Anonymous Coward · · Score: 0

    It's hard to tinker these days sinec corporations are blindly shifting their goals to producing "solutions" rather than "parts". We've taken a step back to the 1800's, in that everything produced is fundamentally incompatible with everything else produced. The difference being that in the 1800s, things weren't compatible because they couldn't be easily replicated. Even "parts" companies are trying to stop building parts and figure out how to sell unique part conglomerates to suit specific identified needs. Talk to your local market rep, they'll sell you shit targetting at the "x market" or the "y market". Ever try to get support for something new? Damn near impossible without a bank statement asserting you have $15million, ready to spend.

    Now it's just because company x doesn't want company y getting any of their business.

    1. Re:Getting "hard" in ridiculous ways by SWTP · · Score: 1

      I know. Try to get info on basic stuff is tough. But try for MP3 decoder chips esp those based on DSP stuff and hope you have some spare cash like around that amount you mention.

      Miss the days of Heathkit. :( Built 810 monitor scopes, rigs etc from them.

      One main problem is getting the part then making a board that can take it. A R&D place can write off dead ends but hard for hobbist.

      Except for Circuit Cellar Ink have stop the others since they are basical borning simple articles. Not like the old days.

  80. I had wanted to build an open source programmer by Ilan+Volow · · Score: 2

    but given how they are now so cheap with the economy in a downturn, buying a couple turned out to be a better deal.

    --
    Ergonomica Auctorita Illico!
  81. Premature death announcements.. by xtal · · Score: 3, Interesting

    Oh please. I build stuff all the time at home and in the lab, last time I checked, places like Maxim have -free- sample quantities in packages you can work with if you have a good iron (SOIC, et al). Getting boards done in small volume is cheap, use a tool like Eagle, which is even available for Linux (but not OS X, doh!). Spend a few bucks and get a quality board done at a internet based low volume PCB shop.

    There are evil packages, but the truth is a lot of the prototyping and test work is done on hand placed boards. Even evil packages can be used if you get an adapter board, there are a few of them out there.

    What's more telling is that now instead of messing with token things, and "wow, I actually got something to show up on the display", you can do some real work with your computer and designs and instruments. I realized awhile ago I was spending far too much of my time tinkering with things and not enough accomplishing things.. but I guess some of that is the Linux mentality too. :) Now I figure out what I want to accomplish and use the best tool, rather than attempting to make everything into a nail for my hammer.

    For $300 or so you can even get prototype boards for FPGAs if you want to do custom hardware. $150 will get you a decent micro development system, and AVRGCC is gnu, runs on linux and windows (but not OS X :), and lets you program cheap cheap cheap AVRs to do just about anything you want. Mix with ADCs and some transistor fed relays or PWM control to do whatever. You can get software to turn your PC into a function generator to test, or if you hunt around, you can get a nice old digital oscilloscope AND a real function generator AND a bus analyser suitable for 8 bit micros (or more) for less than the cost of a PC 4 years ago.

    Same thing applies for most other scientific equipment. Be careful when sourcing chemistry gear, even broken stuff, or you might have the DEA paying you a little visit if you happen to live in the USA. If high voltage fun is your bag, there's companies for that. There are even companies that sell cold fusion experiment kits - although most of the magic there seems to be in the process used to create the electrodes.

    I contend there's never been a better time to BE a amateur scientist! You can actually afford to have a decent lab since last year's gear can be tracked down on the cheap.. and accomplish real work, too! How many high res night shots could you store on a $200 80gb drive? Etc, etc, etc, etc.

    Death of amateur science predicted! Film at 11.

    --
    ..don't panic
    1. Re:Premature death announcements.. by Grishnakh · · Score: 2

      I wish I had some mod points to mod this up. I agree completely; with the cheap microcontrollers available from Atmel and Microchip, it's gotten pretty easy to build useful circuits at home.

      The problem I have though, as a professional EE, is actually finding a job that's this much fun. In the corporate world, if you have a EE degree, you're usually stuck doing VHDL design of some tiny part of some huge system, or worse yet, validation of that VHDL design. There's no hands-on at all. And this is when you're not busy in pointless meetings, dealing with inter-departmental politics, etc. Want to sit in front of a VHDL simulator all day running regressions for some 100k-gate chip which ends up getting cancelled, is just a test chip, or at best isn't used in any product you've ever heard of? EE is the way to go! Want to work on cool projects doing different things every day, working on something you might actually want to use? Don't go into EE. At least not in America.

  82. Opencores by femto · · Score: 2, Interesting

    D.I.Y. isn't dead. It just moved to OpenCores, and other sites like it. Come along and give us a hand!

  83. Re:Q: Can a Skilled Amateur Make a Mobo From Parts by dohnut · · Score: 1


    I'd have to say, no.

    Unless one of the parts is an unpopulated motherboard PCB. You probably won't be breadboarding together the high speed busses/signals, the electrical tolerances are just too strict. Plus most of the parts are surface mount, BGAs and the like. You'd have to buy sockets for everything (which cost big bucks). Now, I don't want to say it's impossible, but..

    Actually, without getting the density achieved by using a custom PCB, it might be physically impossible to route all the connections and adhere to all the tolerances using off the shelf solutions.

    FYI, I'm a software guy, but the company I work for builds/manufactures motherboards. Even with the reference design straight from Intel, it's still hard work and can take 2 EEs up to a year*. That's also with access to nice (expensive) test equipment and a lab.

    * Actually, I don't know how long it would take to do a "normal" motherboard. Ours are small compared to a typical motherboard (they're actually PICMG SBCs) and they have integrated components (SCSI, video, Ethernet, etc) and a custom BIOS. So that makes our design more time consuming.

    --
    Stupider like a fox! - H.S.
  84. bit-based experiments everywhere! by ediron2 · · Score: 2, Insightful
    Man, I am so-oo sorry for ripping off the cliche'd Mastercard commercial, but it so fits my 'second childhood' story:
    • Same model as my first computer: Down from $2500 to a mere $20 or less.
    • Book: Hardware interfacing for the (Apple, 8080, Z80, 6502, 6809, 8088, 8086, etc...): $2 on ebay or a computer show.
    • Chips, resistors, led's, relays and everything else your heart desires: About ten seconds of salary apiece for salvage, $5 for the ones I can't live without.

    • The freedom to try anything I want, 'cuz now I can afford to replace it if I let out the magic blue smoke?

      Priceless.

    D.I.Y. is dead!? Horsehockey! Nothing could be further from the truth. I've been a personal computer 'hobbyist' for over 20 years and a quick guess is that the list of what I'd do if I just had time is quadrupling each year. Ditto every other techno-geek I know.

    We're not all building Ham radios and grinding our own telescope lenses, but that's because we're so busy building our own aparatus for whatever interests us using the building blocks of the digital generation. 90% of my projects have nearly nothing to do with pre-1970's devices.

    And when something DOES?-- well, ten seconds after I got my first Dobsonian 'scope, I began thinking how cool it'd be to rig it up with photocells, servos, a database and a real-time webserver so I could stargaze last night's sky any time I wanted (like at lunch!?). And two-thirds of how I'd do that isn't available from Edmunds. What's more, ten more seconds of searching on google (webcam astronomer) got me two such devices already implemented.

    Folks are building their own fuel cells and hooking 'em to bikes, making wireless network antennas, turbocharged generators, stereo-to-PC integration devices, in-car-computers, personal VTOL aircraft, and more!

    We're all still experimenting. That's what hacking is, in my book. We're just caught up in 'new' areas of discovery.

    Oh, and Open Source has little to do with the urge to experiment. They may coincide, but either can live just fine exclusively of one another.

  85. Tinkering just shifted to other fields by elflet · · Score: 4, Interesting
    While feeling ther demise of electronic tinkering -- my son doesn't mess around with electronics and science the way I did as a child -- I realized the tinkering has gone into other areas. We build robots with Lego Mindstorms. We design model rockets with Rocksim and fly with a local club. We design electronic payloads together -- he comes up with the concept for the booster, and I refine it while figuring out how to fit in the electronics. (We're currently mounting lights inside a Shrox Alien 8 for night flying.)

    Adult "born again rocketeers" are building larger, faster, and more powerful rockets -- and the kids are following suit.

    In all these cases, we've taken the manufacturing boom and used it to support our hobbies. It's not the same as tinkering with low-level parts and raw materials, but in the end you still learn a whole lot about physics, materials science, electronics, etc.

  86. Are you kidding?! by Ogerman · · Score: 2

    My DIY experience has greatly *increased* with all the new trends and technologies (and cheaper old ones). I mean.. 10 years ago, could you buy a perfectly good 100Mhz. storage oscilloscope in an online auction for $100? Or instantly access spec sheets on just about any IC ever produced? Or discuss circuit design technique on public mailing lists with electrical engineers around the world?

    DIY isn't going away.. it's getting more advanced and more exciting! (and yes, SMD soldering is very muchpractical for the home hobbyist with about $50 of the right tools)

  87. the end of telescope building? I don't agree. by gerti · · Score: 2, Informative
    The availability of cheap telescopes does not mean the end of amateur astronomy, it means the end of amateur telescope-building.
    I don't agree. The cost of a high quality telescope is still higher than a home-built telescope of the same quality. If you build a scope yourself, it will cost you a lot of time, but most materials are available at reasonable prices. Plus, building your own telescope gives you total control over the quality and design. With some effort, you will be able to build a telescope which outperforms most commercial telescopes.

    You can build a telescope mostly from parts you find at a dumpster: some pieces of wood for the base, a cardboard tube, a piece of glass... Take a look at the San Francisco Sidewalk Astronomers' website, for example.

    People have made high-quality optical paraboloidal mirrors from scrap glass, glass candle holders, trepanned discs cut from CRT-tubes, etcetera. I have ground and polished a 7" glass disc into a shape which surface deviates no more than 40 nanometer from an ideal paraboloid. All this takes is a lot of time and patience, and some basic materials. Remember: the first telescopes were built 300 years ago.

    The Amateur Telescope Making community is very much alive, try a google query with these words.

    If you're interested in building a telescope, optionally including grinding and polishing your own optics, join the Amateur Telescope Makers mailing list.

  88. How about backyard filmmaker...venting on tech... by jordalenko · · Score: 1

    I studied for and worked in the mechanically precise environment of 35mm film editing for ten years. When I began most of the equipment I worked with was from the 50s. Presently, it is being replaced almost completely by digital work environments. It leaves something to be desired when You come from the smokey backrooms of yore in Hollywood. Current profesional standard editing software is awkwardl;y super imposed on the editing process, making some important processes invisible to the observer. Read= unnecessarily protective of intellectual property = pay for education = tricky= Read =taxing the intelectual capacities of assistant editors with solitary double work and constant detailed user interface changes are not necessary . I took a year off and invested myself in tinkering with my DP G4 andnow OS X. I created a digital film editing environment allowing the tech to work ergonomically within the process. Integrating a new technology and restoring an old fashioned environment. Open source code is the spine of this becoing a reality. I think its up to all of the professionals who tinker out there to apply technology to the environment gently as a networked community of professionals. As a professional I see the great teachers of an era handicapped by tech integration issues. Many film budgets only include tech support from the hardware back. Filmmaking includes international, multi format and multi-national nightmares. Its a great opportunity for international networked communitiesto apply tech inteligently. By metaphor, I have chosen a challenge for this process of integration, a theme for the next phase of technological intergration that will include software writing. The rebuilding of a Norton Commando 750, with half a whitworth tool set. If the frustration of that physical tinkering doesnt work out the kinks in the software design process, I dont know what would. tinkering at work, ja

  89. DIY on the web by cyr · · Score: 1

    Maybe not exactly amateur science, but DIY is certainly alive and well on the Internet. There are hundreds of websites and mailing lists where people show off and discuss their projects.

    Surface mounts components aren't that hard to work with either, you just need to learn new techniques. Also you don't have to drill all those holes...

  90. Magazines dying out... but the 'net lives! by shoppa · · Score: 1
    Sure, if you look at your typical newstand or big-box electronics store you'll get the impression that hobbyist electronics/science has died off.

    But most, if not all, the activity has actually moved somewhere else: The Net. I can pop open a browser and buy radio parts over the web that no big-city electronics store ever stocked, even in the heday of the 50's and 60's. I can go to a usenet group and read sci.electronics.design or go one of literally millions of hobbyist websites where folks are absolutely doing their own thing, completely unfettered by the publishing industry.

  91. I did hear a while ago... by LadyLucky · · Score: 4, Funny

    About a DIY operating system, but I'm danged if I can remember what it was called.

    --
    dominionrd.blogspot.com - Restaurants on
  92. Best of Times, and Worst of Times by nica · · Score: 2, Interesting

    I think over the last three decades amateur pastimes in general have suffered due to television and video games. I won't blame the internet because I think it has actually made things like amateur science stronger.

    I think this is a wonderful time to be an amateur scientist. If you look over those good old days articles you see lots of dangerous setups, or lots or work for little reward. Do you want to build an adder out a relays? You shouldn't...IMHO. With things like cheap microcontrollers with free development systems it has become really easy to do things which would have been very difficult a few years ago. Curious about a local pond?...Make a little battery operated device to record water temperature, set it up for a 24 hour period, take the device home and download the data. Curious what's what the bottom of that pond looks like and don't like to get all wet?...make yourself an underwater case for a cheap video camera. CCD cameras are really cheap these days. What's the point? It can be fun and educational. Besides many a discovery has been made investigating things nobody thought was worth investigating.

    You computer nerds might want to investigate the world of cellular automata. Little is known about CA's, but a little programming, a little math, lots of watching, and a whole lot of thinking might make you famous...among nerds.

    Whatever you do, don't waste you entire evening watching TV. No, not even the discovery channel.

    I think there is another things going on here. It's not hip. People will spend money to be hip. People will buy a $2000 bike because it makes them feel young and fit. It will end up collecting dust in the cellar, but somebody made good money selling the bike. It is harder to sell a mirror grinding kit.

    Gotta go...Antiques Roadshow is on!

  93. Re:A Bygone Era? Probably not. by Grab · · Score: 2

    Not even that - we just focus on building different equipment.

    Maybe there's no longer the huge boom of electronics magazines, but there's still quite a few left. Everyday Practical Electronics is a good magazine for beginner and intermediate-level hobbyists, and contains many useful circuits.

    The place where amateurs can't do much is in anything using low-power components. Radios, computers etc are all long-gone. But anything involving power components is still well within the reach of hobbyists. Hi-fi amps, power supplies etc can all be built more cheaply to a higher quality than commercial equipment. The simple reason is that if it's high-power, the components can't be miniaturised like low-power ones.

    The other place where hobbyist stuff scores is on anything esoteric. You want an automatic plant-waterer, or a touch-panel light switch, or anything out-of-the-ordinary which you can't easily buy off the shelf, you can build it yourself.

    It's very like software, really. A few large organisations (MS, the Linux kernel group, Gnome, KDE) have put lots of time into developing operating systems, window managers, utilities and office programs, so a lone individual can't hope to compete with that work on their own. But if the lone individual spots an application which hasn't yet been written, they can still crank that out and make it a success.

    I honestly don't think there's that much actual research can be done by hobbyists. The main problem is that there's too many patents around, so you can unintentionally be infringing a zillion patents with your obvious ideas. The fact that the patents are garbage is neither here nor there when the lawyers come down on you.

    Graham.

  94. Re:A Bygone Era? Probably not. by Grab · · Score: 2

    I make my own PCBs for electronics projects I build myself. And I do go straight from design to PCB, bcos I don't often make serious mistakes in the design and the errors I do make can be fixed with patch wires. If you have your own PCB-making kit (total price around £100) then it's much easier to do that than to mess around with wire-wrap and matrix-board, especially for large circuits.

    And what I work on is stuff which doesn't much exist elsewhere, or is outrageously expensive elsewhere. My current project is a universal chip programmer. To buy a 40-pin chip programmer costs minimum £250 - I reckon I can put one together for around £80-100 that'll perform better than even the high-end (£400) programmers. Not bad, eh?

    If the companies producing gadgets aren't churning out like a few thousand a week, then the chances are that the drop in cost from them buying in bulk is more than offset by the cost of labour to make the gadget and the profit added on. If a hobbyist doesn't consider their time to be a cost in the project and only counts money spent on parts, there's still plenty you can do yourself for cheaper than buying it.

    Graham.

  95. Surface mount components by AX.25 · · Score: 1

    I used to remove and replace surface mount chip caps., resisters, transisters using 2 weller 60 watt soldering irons (grounded tip models). Worked quit well for me.

    --
    What is pirate software? Software for inventory of stolen treasure?
  96. Still Cheaper To Build Telescope by Anonymous Coward · · Score: 0

    It is still cheaper to build your own telescope than it is to buy one. It is just with the availability of relatively cheap, high-quality, commercial telescopes, the incentive is not there as much as it used to be.

    It used to be, twenty years ago if you wanted to buy a telescope much larger than 12 inches, your options were limited. Now you can buy a 30 inch telescope if you so choose to.

  97. Re:Funny... by |DeN|niS · · Score: 1
    Actually, some things get easier. You can now buy USB support chips, or even PIC's with USB support built in (both cheaply), and connect your EE project straight to your computer, without worrying wether you are going to blow up your mobo (ISA/PCI).

    Write a driver for your device (based on the USB ID) for whatever OS you use, and roll on. You get true plug and play, don't run out of space, can power small projects directly off the USB, etc.

    So.. forget PCI. Go for USB. I don't remember the URL (typical) but there is a website with a full tutorial about building a USB device, step by step, including diagrams and sourcecode.

  98. This will of course go unread... by Anonymous Coward · · Score: 0

    ... because of "Anonymous Coward"... but:

    Hobby tinkering is not dead, it is just moving to the next level. Look at that silly movie "The Fast and the Furious". The old Detroit muscle cars are dead, kids nowadays are souping up Honda Civics. So? The technology that is being adapted and the modifications that are being made are appropriate for the current technology.

    Similarly with electronics. There is no point in building a computer any more because they became too advanced. Ditto radios and other electronic doodads. But look at what people are doing *with* the computers! Did you notice the internet and all the wild and wonderful applications people have dreamed up for it, and all the strange and innovative stuff that's being done with computer generated 3D graphics and audio?

    Twenty years from now we, yes we the hip and cool young people will be the old farts with their obsolete Linux boxes in the basement and their weird personal web pages and stuff. It will be so uncool and yesterday, like model railroads and radio control planes and ham radio today (uh oh, I feel the heat already).

    Live with it. Creative nerds will always find something to do. Maybe twenty years from now there will be amateur genetic engineering (I hope not).

  99. tinkering projects by Anonymous Coward · · Score: 0

    Others may have died, but me not! Look at
    http://atrey.karlin.mff.cuni.cz/~clock/twibrig ht/r onja. I think this is worth of tinkering - I have
    built myself two of them and they perform the best
    and most reliably of all wireless devices I have ever seen :-)

  100. Re:A Bygone Era? Probably not. by Safety+Cap · · Score: 3, Insightful
    I will miss the amateur column in Sci Am though, I got a lot of good ideas from there.
    I submit that it is not amateur scientists that are in decline, but Scientific American.

    With the loss of the Amateur Scientist column along with Connections (my two favorites), I find little left in the magazine (excluding the usual hand-waving fluff) to keep me coming back. I let my subscription lapse 6 months ago; every once in a while, I'll browse the monthly copy at the local B&N, but I have yet to find a compelling reason to buy.

    Meanwhile my home-built gravimeter sits quietly on the shelf, recording local feline Tachyon emissions...

    --
    Yeah, right.
  101. Forrest Mims by dmaxwell · · Score: 4, Insightful

    SciAm's behaivor was completely uncalled for. Mims is a very credible source for electronic's hobbiests. His pencil drawn handbooks contain technical writing that is as clear and succinct as I've ever seen.

    I would not take Mims seriously speaking as a creationist or Intelligent Designer or whatever they are going to call it next week. However, I take him very very seriously when it comes to electronics. Fair is fair, and there is nothing inappropriate about recognizing his electronics competence.

    SciAm tarnished themselves by not recognizing this and gave creationists one hell of a talking point. Shame on them.

  102. Bovine Feces ? by SomethingOrOther · · Score: 2

    There they found David lying semiconscious on the floor, his eyebrows smoking. Unaware that red phosphorus is pyrophoric, David had been pounding it with a screwdriver and ignited it.

    Riiiight......
    This dude is aparantly a chemistry mad geek with a thing for explosions, but doesn't know the properties of red phosphorus!

    Someone is yanking your chain :-)

    --
    Anyone quoted by a reporter knows how little they understand
    Don't believe what you read is the truth.
    1. Re:Bovine Feces ? by GigsVT · · Score: 1

      Yeah, like I said in another post, there are major parts of the story that don't check out. For example, he was supposed to have a dashboard mounted geiger counter, and a glow in the dark clock face in an antique store that had been painted with radium supposedly set it off as he was driving by. Three words "Yeah fucking right".

      --
      I've had enough abrasive sigs. Kittens are cute and fuzzy.
  103. Re:A Bygone Era? Probably not. by zeteo · · Score: 1

    Generally science at home lacks the budget of the professionals. Some of the amateur astronomy set ups I have seen are ingenious. And the low cost of olde technology as it is dumped means the amateur scientist has a wide range of entry level options.

  104. Re:A Bygone Era? Probably not. by Anonymous Coward · · Score: 0

    I would guess that many tinkerers now do it with software rather than hardware.

    I also don't see the DIY movement as completely dead - how many people out there have built their own computer and/or overclocked it? That isn't much different than what Heathkit did -- give you a schematic and some parts and let you put it together. After you got done, you'd mess with what you had to make it better.

    I have a robot I built in an Electronics class in the '80s that had some serious modding done on it, mainly in mechanical areas. Speaking of robots, what about Battle Bots?

  105. Depends on how far you push it. by porkchop_d_clown · · Score: 1

    Having built my own 8" dob, I saved maybe 50 bucks over buying an Orion 8" if you discount the cost of my (and my father's) labor.


    I did hit the target I was aiming for (a basic, usable scope) but it was also plagued with problems caused by my own inexperience.


    If I already had a full wood working shop, and had the skills to use it, I suppose I could build something to compete with the Obsessions and Star Splitters and save several hundred off a two thousand dollar scope. But I don't, and the cost of the tools and skills would more than offset any savings.

  106. LoL the death of Sci Am. by porkchop_d_clown · · Score: 1

    Yeah, Sci Am has slowly turned into Omni magazine. In college, I would read it knowing full well I'd only understand one article in 5 and hoping that the other 4 would rub off.


    I've either become a lot smarter, or Sci Am has gotten a lot dumber. I'm assuming the latter.


  107. Scientific Tinkering is alive and well by Mr.roboto · · Score: 1

    For instance, I am currently in the design phases of making a hydrogen generator based on electrolisys, so I don't have to buy oxy for a cutting torch, and get the hydrogen to boot ;)

    --
    Don't call my crazy, that's what they called me back in the home!
  108. Does anyone know where I can get a Heathkit? by psxndc · · Score: 2
    My dad and I about 10 years ago tried finding a Heathkit radio kit but to no avail. We thought it would be a good project for us to do together but since this was pre-internet for the masses, doing a google search back then wasn't possible. :-) Does anyone know of some stores that still stock/sell them? I think the company has gone out of business.

    psxndc

    --

    The emacs religion: to be saved, control excess.

    1. Re:Does anyone know where I can get a Heathkit? by Anonymous Coward · · Score: 1, Informative

      http://www.theheathkitshop.com/

      heathkit is out of business, this site might help finding the components, etc

  109. Actually by porkchop_d_clown · · Score: 1

    Actually, dedicated scope builders often do grind their own lenses.


    Personally, I don't have the patience.

  110. it's happening in kit airplanes by Anonymous Coward · · Score: 1, Interesting

    Tons of creative tinkering, including in electronics, is happening these days in the build-it-yourself airplane movement. KitPlanes magazine has a column most months on how to assemble your own avionics circuits.

  111. Then and Than by Anonymous Coward · · Score: 0

    This is a little off-topic, but I see it at least once a week on /.. "THEN" denotes a timeline or cause and effect. "THAN" is used for comparison. As in science-is-for-more-THAN-scientists.

  112. Ranque-Hilsch vortex tube by alispguru · · Score: 2
    even use an interestingly shaped chamber (can't remember the name, dammit!) to turn a stream of pressurized air into two streams -- one very chilled and one very hot -- using nothing more than the shape of the cylinder.

    This is probably what you vaguely remember. They are unspeakably cool, aren't they?
    --

    To a Lisp hacker, XML is S-expressions in drag.
    1. Re:Ranque-Hilsch vortex tube by Zurk · · Score: 1

      exair has some for sale from $200 to $995.
      they are cool but also very inefficient.

  113. the goverment wants to kill DIY by bluGill · · Score: 2

    Not just science, but DIY in general. I have a friend who is building a new house. He can only build his own house because he is a carpenter, it is illegal for me to build a house (in that or most other) neighborhood. He cannot do his own plumbing. Water, it runs downhill unless under pressure. If you can soder electric you can soder pipes, and drain pipes are even easier. Nope, cannot touch it. He can do his own wiring, but I'm not allowed to help him. Low voltage 110 (US), but I can touch it. We aren't talking tesla coil voltages here, and I've survived enough electric shocks to know that it is not a big deal (though unpleasent). Can't do it.

    When kids grow up seeing their parents not doing anything themselves, they learn not to do anything themself. I grew up watching dad replace the power steering cycelenders (not sure what they care called) on his car, and I wouldn't consider not doing that myself. I grew up watching dad fix TVs, and I expect to do the same.

    1. Re:the goverment wants to kill DIY by AB3A · · Score: 1

      No, "the government" wants you to build a critical thing such as a house so that it meets minimal safety standards. You can't draw conclusions from these experiences to say that DIY is dead. It's merely sidelined to areas where public safety is not at stake.

      You can still solder pipes if you want to. You can still wire up your attic or basement if that's what you want to do. You can even build a shed in your back yard if you want to. Remember, Home Depot is making big bucks. They're not selling exclusively to contractors either.

      And in case you haven't looked recently: TVs don't have tubes any more. They have very few adjustments and they rarely break. I suggest using your gumption to fix things that need fixing --not living in yesterday's technology.

      --
      Nearly fifty percent of all graduates come from the bottom half of the class!
    2. Re:the goverment wants to kill DIY by bluGill · · Score: 2

      Have you looked at the new codes? they are only making it harder.

      Granted goverment at all levels is at fault. The plumbing thing is a state law, only licensed master plumbers can plumb a house, and they can hire up to two apprentices (and journymen) to do the work. This is all state law. And I can't even become a plumber if I want to do my own, because I have to have something like 5000 hours of on the job expirence before I can touch a pipe in my house. Yes everyone does it, but it is still illegal.

      And not being able to build my own house is a city thing, but almost all cities have it. And they are only getting stricter. with the color of your house set (which sounds good on paper, because you prevent ugly paint jobs, until you drive through a neighborhood and every house looks exactly the same)

      Home depot is making big buck (and contractors rarely shop there). Someone is working on their house. Still, it is getting harder and harder to do so LEGALLY. Most people are breaking several laws when they do their own remodeling.

      I can wire my own attic if I want to. I can't be a friend and wire my friends house, even though I know how.

      TVs don't have tubes to replace, but they still break from time to time. I probably wouldn't fix a TV today, because it is more effort than it is worth. But the mindset "I can fix that" is what is dieing, and I don't like to see that.

    3. Re:the goverment wants to kill DIY by Temkin · · Score: 1

      I suspect you're misplacing the blame. It's not the governement. They're just the insturment. It's the plumbers, electricians, carpenters, and their unions. They don't want to compete with DIY's, so they lobby government for stupid laws. The question then becomes... Why did you let this happen Mr. Voter?


      Temkin

    4. Re:the goverment wants to kill DIY by bluGill · · Score: 2

      Hey, I did my part. The problem is not everyone else did. The consitution is to protect against the terony of the majority, but it replaces it by allowing minoritys to get their own terony in.

      I vote, but I'm just one voter, and it happens that the canidate I vote for normally loses. (I vote for the best person who wants the job, not the best republocrat)

    5. Re:the goverment wants to kill DIY by Anonymous Coward · · Score: 0

      "They're just the insturment. It's the plumbers, electricians, carpenters, and their unions."

      Don't forget to mention the developers, who generally have 10x the political influence of the unions (check the membership of your local planning board if in doubt about that fact).

      Can't have anyone building/upgrading their own home when they could be buying a new one. The trades are really just along for the ride on this one.

  114. Hogwash! by LionKimbro · · Score: 4, Insightful
    Evidently, the something-for-everyone model epitomized by Heathkit and the Amateur Scientist column can't compete anymore. Specialized sources and Internet newsgroups cater to each skill level. But much of the mentoring and serendipity that the diverse community of amateurs offered has been lost. It is hard not to regret its passing.

    What an idiot. We have just largely stopped using magazines in light of the Internet.

    I've learned almost everything I know about electronics from the Internet.

    Look at these books! Look at them! All Free, as in Liberty AND No-Cost. These are some of the very best books I have found on electronics, on-line or off. Forest Mims the Third, eat your heart out.

    Do we want to talk about mentoring and serendipity?

    It was out of frustration that I compiled Lessons in Electric Circuits from notes and ideas I had been collecting for years. My primary goal was to put readable, high-quality information into the hands of my students, but a secondary goal was to make the book as affordable as possible. Over the years, I had experienced the benefit of receiving free instruction and encouragement in my pursuit of learning electronics from many people, including several teachers of mine in elementary and high school. Their selfless assistance played a key role in my own studies, paving the way for a rewarding career and fascinating hobby. If only I could extend the gift of their help by giving to other people what they gave to me . . .

    There you go.

    If anything, I'd say that amateur science and learning and construction is more popular now, because it is more accessible.

    It just doesn't take the form of magazine articles.

  115. This is FUD! by andrewmuck · · Score: 1

    It helps set the stage for banning computers that do not have copy protection (DMCA / CBDTPA)
    You can build your own, cheap parts can be sourced and what you can do with them is getting even better.
    It is getting harder to repair comercial products, that is true. It is also even more motivation to build your own.

    Build a computer in an FPGA

    --
    This is my sig, exciting huh!
  116. save the amatur scientist by FSK · · Score: 1

    Please write to Scientific American, without the Amateur Scientist colum I doubt I would have come up with any ideas for school science projects. Even more important then the projects themselves the Amateur Scientist articles planted the idea in my head that I could be a scientist. That discovery and invention could be accomplished by anyone.

    --
    When punk rock is outlawed, only outlaws will have punk rock.
  117. Re:A Bygone Era? Probably not. by Mr.+Fred+Smoothie · · Score: 2

    Will you be making your PCB designs and software available, by chance?

    --

  118. You should be glad... by Anonymous Coward · · Score: 0

    You should be glad that Fry's still sells what limited variety of electronics components it does.
    Electronics supplies availability are very soon going to become extremely limited due to the war on terrorism since terrorists might be buying parts there.

    1. Re:You should be glad... by taniwha · · Score: 1

      nah - as I said Fry's long ago became pretty useless - now days there are on-line parts places (and Halted's just down the st from Fry's) - but you can't browse on-line the way you could in the aisles of Fry's - looking for the combination of stuff (designing in your head as you walked) you could take home with you and build that day

  119. Re:Funny... by Anonymous Coward · · Score: 0

    Hey, moron, did you read my post?

    Newer components HAVE been messed with because the Commodore 1 is made in FPGAs. She even made her own PC board.

    And I said it was an 'EXTENDED' Commodore 64. So it's newer.

    The fact is, she took an existing chipset that has very little documentation (I mean C= is RIP), and added all kinds of power to it.

    Even a 20 year old computer like the C64, is pretty complex when you get down to the gate level. Of course, you probably think it's all easy, right? Skript k1dd13???

    It's people like you that make /. pretty lame.

  120. Re:Funny... by Anonymous Coward · · Score: 0

    Just like Slashdot itself! Genius!

  121. Forces at work here certainly putting an end... by Anonymous Coward · · Score: 0

    ...to the amateur scientist/tinkerer/hobbiest.

    First of all, the war on drugs has put an absolute end to the amateur chemist. Anybody with a test tube in their possesion is a suspected meth manufacturer. Next, since electronics devices are used by terrorists, this hobby soon will disappear and you will no longer be able to buy such parts and supplies. Also consider that the tree-huggers have also declared war on electronics. Solder has lead in it and is already been officially deemed a hazardous material. You can't even buy mercury anymore to make your own mercury switches. Possession of mercury by an unlicensed person is actually a crime (misdemeanor) in my state, punishable by jail, fine or both. The tree huggers have also successfully eliminated spray cans of contact and control cleaner. Try to buy a can of Lube-a-Trol or Blue Shower anymore? The manufacturer of those has all but been been forced out of business, they only sell to commercial accounts anymore. Did you ever enjoy making your own printed circuit boards? Kodak photo-resist is no longer available to individuals anymore, you have to be licensed and prove that you have an approved manufacturing facility with approved hazardous materials storage capability before you can even posess it here. Ferric chloride to etch the boards? Ha! Again with the several-hundred-thousand dollar facility, PLUS you are required by state law here to document and log all your purchase, use, and disposal (using a state-approved disposal company) of etching solution here. Every year you are required to turn in your paperwork to the state environmental agency. Nothing in the world of electronics manufactoring is able to escape the "Greenie" luddites' scrutiny.

    Along with the "War on Everything" and making criminals out of all scientific hobbiests, compounded by the assaults of the environmentalists, lastly we have the commercial forces at work to drive the nail into the coffin of the individual scientific hobbiest. The manufacturing giants want (for both greed and control of intellectual property) to make it impossible for you to "do-it-yourself" in any way shape form or fashion. Their goal is that anything and everything shall only be made by them and SOLD to you. They are doing everything in their ability to make sure that you cannot tinker with manufactured items they sell to you either. My gawd, man, they're evey freakin' telling you how you can and can't use what you buy from them. It's really THAT BAD. You have to have been a rip van winkle asleep to not have noticed that trend.

    It is now dawning the day where in order to work with anything technical, you will ONLY be permitted to do so if you pass thru all the formal passages of college, pass extreme scrutiny of the government and other cerrtifying authorities and work for a research or manufacturing giant, and then you will only work on the specific things that you are allowed to in that work environment. The small guy is over. End. Finito. Hell, soon you won't even be permitted to write your own software else you'll be branded as a cyberterrorist.

  122. Re:A Bygone Era? Probably not. by You're+All+Wrong · · Score: 1

    {{{
    I submit that it is not amateur scientists that are in decline, but Scientific American.
    }}}

    Well said. In tha last few years we've seen all kinds of hobby science being done. Sure old fields may have dried up, but new fields have opened.
    e.g. Look at the microwave plasma ball experiments which were impossible 20 years ago (I think that I first read about these about 10 years ago, the recent story on slashdot was very behind the times).

    Nowadays the raw components of hobby hacking may be pre-built processors, DSPs, RF units (naughty, naughty) etc., but that doesn't detract from their innovativeness.

    20 years ago people weren't rolling their own capacitors, for heaven's sake, so why should we expect modern day tinkerers to not take advantage of what are now commodity items?

    YAWIAR.

    --
    Your head of state is a corrupt weasel, I hope you're happy.
  123. Re:A Bygone Era? Probably not. by Grishnakh · · Score: 4, Informative

    I don't know any EE today that wasn't into electronics as a hobby before they actually got their degree.

    How old are these EE's? I'm a 28-year-old EE, and I'm the only EE I know who was into electronics before getting his degree (and still is a little). In fact, I'm the only EE I know who has any technical hobbies whatsoever (electronics, auto mechanics, OSS programming, Linux, etc.). And I work at a certain really huge processor manufacturer, where I'm surrounded by EE's (though none of them are over ~33).

    Trust me, for most engineers, engineering is just a way to make money, not something they do out of any huge interest in electronics. And if you're really interested in electronics and are considering getting into electrical engineering, don't. You'll be severely disappointed. I was.

  124. Re:Funny... by NoMoreNicksLeft · · Score: 2

    Much of what I want to build, are actually SLDC network cards. ISA or PCI are the only logical choices. PCI is, really. USB is nice, don't get me wrong, and many of the "peripheal" things I want to build will be USB instead of ieee1284, but some things are best as expansion cards.

  125. My HS library had a copy of that book! by coyote-san · · Score: 2

    My HS library had a copy of that book... and even then I was surprised. Then again, that library saw less action than the Hellmouth library in Buffy, so they probably figured that leaving it on the shelves was the best way to ensure a student would never stumble upon it.

    Still, I would be surprised if the book is still on the shelves today, over 20 years later.

    --
    For every complex problem there is an answer that is clear, simple, and wrong. -- H L Mencken
  126. Re:first post by First+Post+Counter · · Score: 1

    [Note: This thread was picked to begin the Great Slashdot First Post Count-off]

    Congradulations, Spanko! Your first post has been officialy recognized as the true First Post

    Current Statistics:

    Logged in FPs: 1
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    First Posters:

    1 - Spanko

  127. Re:A Bygone Era? Probably not. by MaxwellStreet · · Score: 2

    This is very much the case in the programming crowd I deal with too.

    I was a biology major, but ended up doing programming because I had been doing it since I could get my hands on a computer (they used to be -really- expensive).

    These days, most programmers I meet are only in it because it was the best-paying option when they chose their majors.

    Not saying that my experience applies to programmers in general (in fact, open source programming seems to fly in the face of this) - but out here in corporate-land, it's all about the cash, it seems.

    Pity, no?

  128. Surface mount soldering by thevoice · · Score: 2, Insightful

    Im an ex prototype solderer, as part of my job I used to spend days hand soldering surface mount components on PCBs. It was a crackpot company and they didn't want to pay to have them machine done. I must say I tend to agree with the original poster's advice. Don't. I can't see these days.

    1. Re:Surface mount soldering by Anonymous Coward · · Score: 0

      For that matter, I used to prototype by stripping 22 AWG copper telephone wire (D Station Wire) with my teeth. Now I can finally whistle through them, but I look like Chip of Chip & Dale.

  129. Re:A Bygone Era? Probably not. by Anonymous Coward · · Score: 0

    Sorry, but you have absolutely no idea what you are talking about. The parent comment was on how much SciAm sucks now, not on commidity blah blah balh. You lose. Thanks for trying.

  130. Re:A Bygone Era? Probably not. by Anonymous Coward · · Score: 0

    ditto. I felt that during most of my studies, and it s very disapointing to see how this non-motivated majority actually defines the standard: one even looks suspicious for liking what he studies, it s seen as a lack of pragmatism, or some kind of nevrosis even by professors.
    That s the way it goes in France at least , and that s were I studied (semiconductor physics) engineering. I found a way out in The Netherlands : engineering is here so poorly regarded as a carreer ( I make under 70k$ gross yearly, but then again my rent is 220$ including heat+elec.+cableTV...), in comparison with lawyer or even commercial rep. that I find myself surrounded only motivated engineers and doctors at work. And that is worth more than truckloads of money or social recognition. The word for geek here is "techneut" and I guess it s even more depreciative than in the US.

    Another difference is that the company is far from huge, thus i can tinker with any activities I like ( analog / digital / RF / high speed logic / compact models / physical design / EDA support and library development ....)

  131. Not "insanely difficult" -- here are some examples by Jan · · Score: 1

    See my company's web site, FPGA CPU News: http://fpgacpu.org/

    and my articles: "Building a RISC System in an FPGA":
    http://fpgacpu.org/xsoc/cc.html and
    http://fpgacpu.org/papers/xsoc-series-drafts. pdf

    and (simpler): "Designing a Simple FPGA-Optimized RISC CPU and System-on-a-Chip":
    http://www.fpgacpu.org/papers/ soc-gr0040-paper.pdf

    and links: http://www.fpgacpu.org/links.html

  132. Forces at work here certainly putting an end... by Anonymous Coward · · Score: 0

    ...to the amateur scientist/tinkerer/hobbiest.

    First of all, the war on drugs has put an absolute end to the amateur chemist. Anybody with a test tube in their possesion is a suspected meth manufacturer. Next, since electronics devices are used by terrorists, this hobby soon will disappear and you will no longer be able to buy such parts and supplies. Also consider that the tree-huggers have also declared war on electronics. Solder has lead in it and is already been officially deemed a hazardous material. You can't even buy mercury anymore to make your own mercury switches. Possession of mercury by an unlicensed person is actually a crime (misdemeanor) in my state, punishable by jail, fine or both. The tree huggers have also successfully eliminated spray cans of contact and control cleaner. Try to buy a can of Lube-a-Trol or Blue Shower anymore? The manufacturer of those has all but been been forced out of business, they only sell to commercial accounts anymore. Did you ever enjoy making your own printed circuit boards? Kodak photo-resist is no longer available to individuals anymore, you have to be licensed and prove that you have an approved manufacturing facility with approved hazardous materials storage capability before you can even posess it here. Ferric chloride to etch the boards? Ha! Again with the several-hundred-thousand dollar facility, PLUS you are required by state law here to document and log all your purchase, use, and disposal (using a state-approved disposal company) of etching solution here. Every year you are required to turn in your paperwork to the state environmental agency. Nothing in the world of electronics manufactoring is able to escape the "Greenie" luddites' scrutiny.

    Along with the "War on Everything" and making criminals out of all scientific hobbiests, compounded by the assaults of the environmentalists, lastly we have the commercial forces at work to drive the nail into the coffin of the individual scientific hobbiest. The manufacturing giants want (for both greed and control of intellectual property) to make it impossible for you to "do-it-yourself" in any way shape form or fashion. Their goal is that anything and everything shall only be made by them and SOLD to you. They are doing everything in their ability to make sure that you cannot tinker with manufactured items they sell to you either. My gawd, man, they're evey freakin' telling you how you can and can't use what you buy from them. It's really THAT BAD. You have to have been a rip van winkle asleep to not have noticed that trend.

    It is now dawning the day where in order to work with anything technical, you will ONLY be permitted to do so if you pass thru all the formal passages of college, pass extreme scrutiny of the government and other cerrtifying authorities and work for a research or manufacturing giant, and then you will only work on the specific things that you are allowed to in that work environment. The small guy is over. End. Finito. Hell, soon you won't even be permitted to write your own software else you'll be branded as a cyberterrorist

  133. Re:A Bygone Era? Probably not. by Benjamin0001 · · Score: 1

    When my dad was stationed in West Germany going to school in the Army for Radar his class was tought by a English speaking German Physicist. And the mindset was not about money but about knowledge. I guess it has changed but I am unable to change to that. I Love knowing something to nth degree. Precision and Mastery are the Holy Grail of Engineering depth of knowledge helps.

  134. Re:A Bygone Era? Probably not. by TooTallFourThinking · · Score: 1

    I became an EE because I was the only one in my family who was interested in electronics. I had no one to turn to help me out and I was giving little direction when I was a kid. "You want to play with electronics? Try fixing the VCR." I decided college was my best bet.

    Now, college didn't help me out too much either. Sure I learned theory, but I played with electronics very little. Which disappointment me greatly. But at least at work, with the project I somehow landed in, I am able to play around with electronics. I am designing some quick little vector boards to help with a prototype design.

    It's a little late, but I thought I would throw in my thoughts on the matter. I think I happened to luck into everything, and now I have the confidence and knowledge to play around. I would love to help others out to learn the basics of electronics and so everyone can just start playing around. I find learning that way to be much more fun!

  135. Re:A Bygone Era? Probably not. by Benjamin0001 · · Score: 1

    I have taken a subrscription to Scientific American in that Past. It was a good magazine way above omni. I read on off the shelf at work several months ago and it was still informative. But one day many years ago I picked up a copy of the American Journel of Physics and it was then that I understood although Sci Am is good it is Still just a Laymans magazine. I couldn't even touch the Articles in AJoP. What is the equivalent Journal for Electrical and Mechanical Engineers?? I don't know. Ben

  136. Re:Not "insanely difficult" -- here are some examp by Jan · · Score: 1

    Also: http://slashdot.org/comments.pl?sid=10374&cid=4519 43:

    "I build processors in FPGAs, perhaps you can too

    It's more accessible than some of the other responses would lead you to believe. The tools are quite good, and the devices themselves project a simple synchronous digital world abstraction.

    Excellent basic synthesis and FPGA implementation tools are now $0-$55, several proto boards are $100-$200, the devices themselves are $20, and with them you can build 16- and 32-bit processors that run at 33-67 MHz and beyond. Perfect for many embedded systems projects.

    Visit our web site, FPGA CPU News [www.fpgacpu.org] for further information. And/or join the mailing list [www.yahoogroups.com/group/fpga-cpu].

    See my Circuit Cellar magazine article series, "Building a RISC CPU and a System-on-a-Chip in an FPGA" [www.fpgacpu.org/xsoc/cc.html]. The corresponding free kit (which requires a $100 FPGA proto board from another company) is at [www.fpgacpu.org/xsoc/index.html].

    Or see my recent DesignCon'2001 paper on "Building a Simple FPGA-Optimized RISC Processor and System-on-a-Chip" [www.fpgacpu.org/soc-gr0040-001201.pdf]. This latter paper includes the annotated synthesizable Verilog source code of a simple CPU -- less than 200 lines of code.

    Learning to design digital systems with a hardware description language, and then progressing to design your own peripherals, and perhaps processors, is not a trivial undertaking, but neither is it anymore an exclusive and unobtainable art, practiced only by high priests in well funded semiconductor companies with in house fabs."

  137. paper and pen are soOo hard to find these days ! by Anonymous Coward · · Score: 0

    For that maybe how you tell professional from amateur science: amateur needs gizmos to keep him busy; whereas professional has enough open issues to solve on paper, and he ll use the ready made gizmos only when a confrontation with measurements is required.

    Or maybe there is no such thing as professional VS amateur science, just like there is valid distinction between professional and amateur programming, or between professional and amateur music playing ?
    It s neither better or worse, it s just paid. Do you prefer amateur or professional love ?

  138. One reason to buy a prebuilt box... by smithmc · · Score: 1

    ...they're quiet, so quiet. I've never been able to build a box as quiet as the ones you get from Dell or the other places (but especially Dell, it seems). At home, I have to shut my computer off at night 'cause of the noise. If I had me one o' them Dells, I could leave it up 24x7.

    --
    This .sig intentionally left blank.

    --
    Downmodding is the refuge of the weak. Don't downmod, make a better argument!
  139. Re:A Bygone Era? Probably not. by mamba-mamba · · Score: 1

    I know what you mean. The people you are talking about are not really engineers deep down in their souls.

    There were very few people in the EE classes I went to that seemed to want to learn. They just wanted to get grades so they could get a degree so they could get a job. And many of them HATED lab classes as much or even more than they hated the theoretical classes. Wrong major, if you ask me.

    MM
    --

    --
    By including this sig, the copyright holders of this work or collection unreservedly place it in the public domain.
  140. Re:A Bygone Era? Probably not. by Grishnakh · · Score: 2

    Yeah, this is exactly what I saw in most of my engineering classes too.

    I actually have a few more comments to make though:

    When I worked at a University research organization, there were only a few engineers there, but they were ALL really into personal projects, DIY stuff, etc. Very practical, hands-on people. I kinda regret leaving that place. However, only one was a BSEE; another was a BSME, another a EE major (still a student), and one had a CS degree. I think I've seen more CS people who were good at hardware than EE's.

    Also, I went to two different universities: Univ. of Tennessee in Knoxville, and Virginia Tech. VT has by far a better reputation among employers, but when I went there, the students were all just there to get a job, not because they had any interest in electronics. None of them even knew how to solder. But when I went to UTK (my freshman and sophomore years), many more students there were into hobbyist stuff. Almost everyone had an HP48 calculator. And the courses encouraged hands-on work more; we had to solder projects together in early junior-level classes, and had to program assembly language (on real 486's) in a sophomore class.

    So there's a few "real EE's" out there, but if you're a "real EE", finding a job that suits you seems to be nearly impossible. If anyone has any pointers, please speak up!

  141. Forrest Mims and SciAm were a bad mix by Spamalamadingdong · · Score: 2
    I fail to see the relevance of his unscientific beliefs with regards to biology if he's writing a column of hands-on science projects.
    The relevance appears quickly when people are using the name of Scientific American magazine to promote Mims' creationist beliefs. Which happened. SciAm did not want their name to be so used, and couldn't stop Mims' promoters from doing so even if Mims would never do so himself. Ergo, Mims could not work for SciAm.
    1. Re:Forrest Mims and SciAm were a bad mix by Anonymous Coward · · Score: 0

      So, out of fear that their name would be dragged through the mud by irrational people, they chose to degrade their own name from the point of view of rational people who happen to owe a lot of their technical inspiration to Forrest Mims.

      I think that's what ethicists usually call "doing the wrong thing."

  142. Forrest Mims and the "expert effect" by Spamalamadingdong · · Score: 2
    I would not take Mims seriously speaking as a creationist or Intelligent Designer or whatever they are going to call it next week.
    You might not, but others are not so discriminating. The problem SciAm had was that some of Mims' promoters were using his association with SciAm to try to make creationism look "scientific". SciAm couldn't allow that to continue.
  143. not just electronics-hobbyists waning by Anonymous Coward · · Score: 0


    I collect automobilia, and part of that collection includes magazines like Popular Science, Popular Mechanics, Science and Mechanics from the 50s and 60s. They're full of DIY projects in electronics, carpentry, boating/fishing/hunting, 'handy hints' and pop-science and handyman things in general. Apart from Popular Science, these magazines don't exist anymore, and nowhere do I see replacements in the magazine racks. Instead, today's kids have TV, video games, computers, and parents and a society that feels the need to keep kids entertained, instead of giving them the tools to entertain themselves and taking a chance on letting them get bored and thereby motivated to get a life.

  144. Gadget makers wanted by puckhead · · Score: 2, Informative

    There is a lot of amateur engineers working on gadgets to improve the lives of people with disabilities. The market is often small but the rewards are tremendous. Enablemart shows has a lot of stuff that was invented in garages and small shops.

    --
    Watching Cowboy Bebop in my jammies, eating a bowl of Shreddies.
  145. Computer Science by phliar · · Score: 2
    Computer science is not a science at all, but a pseudoscience. I am not trolling...
    I got my bachelor's, master's and PhD in CS, and was university faculty for a couple of years and still can't bring myself to say Computer Science out loud. I think of CS theory as part of math, and the rest is just hacking (or writing code). Not that I'm complaining, writing code is a huge amount of fun and I get paid a ridiculous amount of money for just doing what I do in my spare time anyway!

    --
    Unlimited growth == Cancer.
  146. Well, here's my DIY project... by Anonymous Coward · · Score: 1, Interesting

    I'm making my own LCD monitor. Before you flip out and call bullshit, allow me to explain. I recently picked up a 3M 6150 LCD projection panel, the older type of full size LCD panel you stack on top of an overhead projector, for 10$. But there's no backlight, obviously.

    There's NOTHING out there information wise about this screen. It has a 26 pin high density connector labeled 'computer'. It took me about 10 minutes to suss out the pinout. What you do is measure resistance to ground of each pin with the power off. Then you measure the voltage with the power on. I took apart a male HD DB15 to get the pins to probe with.

    Ends up it has differential inputs for the video, 10/5/-5V supplies, single ended sync inputs, and two unknown logic signals. So I figured out the syncs by plugging my PC's sync in to it, when the screen no longer said 'no input signal' I had the H and V pins.

    I was able to get datasheets for all the chips on the PCB, and I'm now trying to see if I should build 3 differential video amplifiers or modify the PCB to take single ended video. The A/D converters have their reference voltage at 430mV for the low and 5.1V for the high. Change the reference voltages and modify the input circuitry?

    The 'funnest' part so far is trying to build a suitable backlight. I'm thinking 3 F6T5 fluorescents and associated hardware.

    Thing is, everyone carries the stupid F6T5 bulbs, but no one carries the @$@#$@#$@ fixtures, ballasts or connectors! So I'm thinking I'll try 13W biax. Same thing again. Bulbs everywhere, no fixture.

    What does this have to do with anything?

    I don't know, but I sure feel better now.

  147. This is old news by roybadami · · Score: 2, Insightful

    This is old news

    I prety much saw this and went through this in my teenage years (way back when).

    I started out being interested in electronics -- and saw basic microcomputer projects occaisionally appear in the elecronics magazine as these incredibly complex designs that I (at the time) couldn't understand what they were about.

    As I gravitated towards computers (which is where I ended up making my career, after a brief flirtation with Physics), I saw the increase in shelf space in the newsagents of the early computer hobbyist magazines, coupled with the reduction in shelf space for electronics.

    I think the /. headline is right -- the loss to the electonics constuctor community is the gain to the computer hacker (in the true sense of the word) community, and open source is the obvious beneficiary.

  148. Electronics Mag by Faust · · Score: 2, Informative

    Thought it was worth mentioning, poptronics

    January 2002 issue is in pdf format on the front page

    -Faust

  149. Amature Scientists.. We are out there.. and ... by MrJerryNormandinSir · · Score: 1

    First of all amature science is alive and well. This dude walks into Frye's and asks a clerk for an
    inductor, if he was a true scientists he would roll his own inductor, it's not hard to do! I can
    even tune one down to .0001uH! So.. dude get a life.

    As far as my amature projects go, try creating heat through a limestone catalyst! I've done it. Also my Solar panels charge several marine batteries, the marine batteries are connected to an APC 600 UPS (cheap power invertor!)
    Ahh and there's my homebrew robotics. And there's the work with Linux I am doing.

    I want to create a solar powered boiler that will
    produce enough steam to drive a tesla turbine.
    Ahh.. and there is the old fashion inductive load on the power lines. Could this be the source of
    energy to drive my tesla coil next halloween? I can haul a large inductive 60Hz antennea in my
    truck to the high power lines and hand an inductive load on the power line. That would be
    cool.

    I beleieve there's plenty of us out there.

    1. Re:Amature Scientists.. We are out there.. and ... by Anonymous Coward · · Score: 0

      First, learn to spell.
      Nobody rolls their own inductors. Can you spec your inductor from DC to 1GHz?

  150. Re:Those Electronic Kits - Jameco by GigsVT · · Score: 1

    also try

    www.allelectronics.com
    www.mpja.com
    www.alltro nics.com

    I order from all three on a regular basis. Check out alltronics surplus assortments, you will NOT be dissapointed if you order one. When they say 10 pounds of capacitors, they mean it, including some 6 inch tall 18000 mfd 48 volt ones, the last time I ordered that assortment.

    for kits and some other cool things
    www.ramseyelectronics.com

    --
    I've had enough abrasive sigs. Kittens are cute and fuzzy.
  151. Re:A Bygone Era? Probably not. by Grab · · Score: 2

    That is the idea.

    I'll probably sell the hardware design to Everyday Practical Electronics. This makes it easier for ppl to build the stuff, bcos EPE can get a few hundred PCBs cranked out and sold for a reasonable price to hobbyists. And it gets the design to a wider audience than it'd otherwise see if I just posted it on my website. Plus of course it lets me get a bit of cash from the time I've put into it! :-) Not serious money, but enough to finance another guitar or two, or pay for a holiday.

    The software (I'm planning on using Qt for the front end) will be freely available, along with the specs for the parallel port interface to the main programmer board. An API will be provided for adding new chips to the list supported by the programmer. The spec for the internal bus interface will also be available for ppl to design their own slave boards, to expand the programmer as they want. And the code for the PICs used to control it all will be available.

    The only thing that may not be available will be DLLs for the chips supported. PICs are OK, their programming interface is public domain; most other chips use proprietary algorithms which require an NDA to be signed though, so you could only release the compiled code for that and not source. Not ideal, but that's the way the electronics industry works. And if ppl can at least contribute their own DLLs then it's open to individuals to expand the chips supported.

    Grab.

  152. DIY Lives by spm_stm · · Score: 1
    The power to inspire in the amateur scientist column in Scientific American was not always about actually doing the experiment but to see how someone was able to create a cutting edge instrument with simple tools and clever thinking. It let you see potential of the common place and that was the art of the column.

    I created a web site outlining the design and construction of a simple Scanning Tunneling Microscope. My experiences with the people that write me about the project most just read through the site and ask some basic questions about Scanning tunneling Microscopy and/or comment on the project. Rarely will some one write to tell me they are building it. These few are from all over the world and they are mostly students. It was exciting to hear from a kid in South Africa that had just gotten his first images with his microscope. I would encourage more amateur or semi-amateur scientists/engineers to publish open source projects on the web.

    John Alexander

    http://www.geocities.com/spm_stm

  153. Light pollution and air pollution by some+guy+I+know · · Score: 1

    This reminds me of a scene from the movie "Dragnet".
    Joe Friday and the virgin Connie Swail are sitting in a car on a cliff overlooking L.A. at night, and the virgin Connie Swail looks up at the sky and says, in awe, something to the effect of "Look at the stars! I can see dozens of them!".

    I wonder how many people got the joke.

    It's sad that many people rarely see the stars on a clear, dark night away from sources of light and air pollution.

    --
    Those who sacrifice security to condemn liberty deserve to repeat history or something. - Benjamin Santayana
  154. Another reason to buy a prebuilt box... by Anonymous Coward · · Score: 0

    ...is you often get a M$ license included in the price at no extra charge!

  155. of course it doesn't help.... by aminorex · · Score: 2

    that sci am fired their best am sci columnist
    for not being sufficiently dogmatically darwinist.

    --
    -I like my women like I like my tea: green-