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User: CommieLib

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  1. Re:Banned books on Douglas Adams, Narnia, and Trailers · · Score: 1

    The real problem is a lack of recourse. If I'm a Hindu parent, and I don't want my child reading Christian literature, under the current public education system I have no reasonable recourse. If I'm sufficiently wealthy, I might be able to place my child in a private school more in accord with my beliefs, but public solutions only available to the wealthy is not a recipe for democracy.

    At the same time, God knows fewer ideas and less communication is not what this country needs. It seems to me that the solution is utter freedom of choice (constrained by economics, of course) in education. Any school may teach or hold in it's library any book, and at the same time, the parent may take their child to another available school.

    Privatize education. We still furnish welfare checks, but we don't consider it a violation of the separation of church and state if the person tithes.

  2. What an asshole on Slashback: Assembly, Avoidance, Civility · · Score: 1, Flamebait

    For the love of mike, comparing the Free Software movement to the civil rights movement? That takes some serious nerve...

  3. Re:Inertial effect? on Boeing Joins In Anti-Gravity Search · · Score: 2

    There is no flat / curved spacetime; there's only local spacetime. As you approach c, the curvature increases. If this effect decreases this...you get my point?

  4. Inertial effect? on Boeing Joins In Anti-Gravity Search · · Score: 2, Interesting

    If the effects of gravity are shielded, how about the inertial mass of the object? If local spacetime is "decurved", would this allow the object to accelerate past the speed of light, or at least decrease the dilation effect?

    I can't see how you could do one without the other...while anti-gravity seems really cool, if there's an effect on inertia, this is potentially far greater, IMHO.

  5. Timex Sinclair on Modern Retro computing · · Score: 1

    I had one of these little beasts. I cannot imagine who thought those chicklet keyboards would be a good idea...

    My key memory of it was actually writing programs that used all of the 4k + 64k RAM expander ;).

  6. Social Robot? on Social Robot? · · Score: 1

    I thought this would be a story about Slashdot readers...

  7. Mentoring... on Motivating Your Co-Developers? · · Score: 5, Insightful

    I've mentored a number of number of programmers, successfully, at least in our collective opinion. I think the key lies in the idea that "a question well-asked is half answered."

    Most new programmers tend to come to me with nothing more than a vague sensation of "it doesn't do what I want it to." The proper reply for this is "come back to me with a good question." Until they can do that, they cannot be helped.

    Once they have a good question, don't give them an answer; give them the other good questions that lead to / issue from that question.

    Once someone knows how to ask good questions, they're halfway to becoming a good programmer.

  8. Heavily Slashdotted on Build Your Own Battlemech · · Score: 2, Informative

    I know it's no fun without pics, but here goes:

    The Making of a BattleMech
    By Com Star Guard (CSG)
    Free Universe Mechwarrior League (FUML)

    One January evening Jim arrived home from work early and there were two pickup trucks in the driveway with him. Oh yeah, he had said something about getting a couple of old shipping crates for the kids to play with. He and his friends unloaded the crates and dragged them into the garage. Little did either of us know then that these crates would take over our garage for many months to come and keep Jim very busy for the next seven months.

    At first it was going to be a simple little fort, nail the crates together cut a door and a couple windows, throw on some paint and voila the kids have a playhouse. But change had already set in; the girls started talking about a tree house so the design evolved "upwards" to a fort on stilts. Over the next week as the "air fort" design was coming together a shift in paradigm occurred. When looking at the crates, Jim's Mech-riddled brain now saw two LRM racks. So the question was posed to the children.... How about a "Mech tree house"? They love watching Daddy play the game with his team the ComStar Guard (http://www.comstarguard.com) as part of the Free Universe Mechwarriors League (http://www.fuml.net), and they each have their favorite Mech so the idea was an instant hit. The type of Mech was obvious, a Madcat, the two LRM racks sealed its fate (plus the fact that it is really one of the simplest chassis with more interior room for the playhouse). And so, with some screen shots from the game, the MW4 game manual, a caliper, and a pile of paper, the sketching began. The scale was set by the size of the crates and the height of the garage door resulting in an overall average of approximately 38%. To tell the truth there really aren't any plans for the thing... more like scrapes of papers with small working sketches and calculations, most of which were scattered around the yard and garage.

    So now it was off to Lowes to get plywood, 2 x 4's, and other assorted hardware. Over the next couple months working on and off during the evenings and on some weekends the Mech slowly took form. It started as a rectangular fort with the crates (LRM racks) mounted on the sides; neighbors would come by and look inquisitively. The kids had already taken to it, climbing all over it during the construction, spawning the idea to put several hatches on top - the kids could now climb into the LRM racks from above or below (these would later be screwed closed when the roof was towering 12 ft up). As part of the playhouse aspect of the layout there is also a large back door, which will one day open onto some sort of a little deck (still to be built) allowing easier access and a place for the kids to stage their toys. The Front - Before the Nose Cone
    The Hatches on Top
    The Back Door

    Now it really needed the cockpit/nose so how to make the curved parts? Several attempts were made with plywood (scoring the backside) and bending it over the frame, but the radius was too tight and Jim's patience way too short. So it was back to Lowes and to Standard Steel for some aluminum and Plexiglas sheets and lots of pop rivets. The nose cone was still a question - Wal-Mart didn't sell a steel salad bowl big enough so the search continued. Leave that for later.

    The cockpit begins to take shape

    Wouldn't it look good if it were painted? The kids looked at all sorts of paint schemes from the game Mechlab and the voting began. Lets just leave it at Dad having to override all the popular votes (for red, purple etc) for a nice subdued camouflage pattern that wouldn't draw protests from the neighbors. So off to Wal-Mart for exterior paint, lots of sealant, and spray-paint for the details. The computer and MS PowerPoint came in handy for making a whole range of templates to do the detailed painting. The first was the hexagonal missile ports on the LRM racks. After completing painting on the first rack (one heck of a difficult job) Jim looked back at one of the color screen shots... the background should have been gray not green... well, that wouldn't do! It was too difficult to repaint the background around the hexagons so an entirely new plan was hatched. Instead of painting, the hexagons would be cut from plywood, painted, and screwed into place on the rack (much easier, right?!). My son now wants to replace these with real tubes to launch fireworks (thanking CSG_Mhowatt for his rocket post)! So an assembly line was setup to construct and paint hexagons and another trip scheduled back to Wal-Mart for gray paint (I know Wal-Mart loves me). The Hexagons in Progress
    Adding Some Camouflage and Details
    More Camouflage

    Well now comes a decision point ... should we downscale to a pseudo Catapult and minimize additional work???? No lets go for it, its time to start working the arms... back to Lowes for more wood (I know Lowes loves me too).

    Nearly completed Body.... Still looking for that nose cone!!

    Well, it is starting to look pretty good now so it might as well get a set of real legs... right! The initial design started with wood construction for the legs using a lot of 2x10s. They were pretty sturdy and very heavy, however, with the body weighing something like 700 lbs and the thought of our kids playing on it way up in the air, the legs were being reconsidered. The credit goes to CSG_Gator for his comments regarding the use of steel for the new direction in leg construction. The steel would allow for the correct look (angles) and provide more than enough rigidity for an equivalent weight. After a few calculations, overkill was decided as the best course and the order went into Standard Steel for 30 feet of 4" x 6" steel box beam with a 0.25" wall thickness. The steel legs would look like "chick legs" under it so the 2x10s from the original legs would be cut up to encase the steel... giving them that right "look".

    The steel arrived and was it ever heavy!! The only time AutoCad was used on this project was to layout the steel legs (make sure of all the angles and lengths). So started the job of cutting it up and laying the pieces out (now that was a workout). A saws-all was used for all cutting jobs; kudos to Milwaukee for their 9" metal cutting blades called "The Torch", they really worked well! The time finally came to weld; the neighbors had to wonder what was going on with all the light coming from the driveway and around the side of the house late into the night. Now there are a lot of hours worth of welding in those legs, the bad part was Jim made the mistake of wearing cloths with holes in them (not thinking) his first long day - he got some pretty bad "sun burn" spots! Total weight of the steel leg assembly is around 500 lbs... that sure is going to make it fun to move and setup!!! Original Wood Leg - Scrapped for Steel
    Welding Steel Leg
    Steel Belly Support
    Final assembly of the legs to belly support

    Meanwhile, the nose cone was finally finished off in an act of desperation using strips of aluminum flashing and lots of aluminized tape (didn't look too bad). It was now time to get the Mech out of the garage so that the wife's car could once again be parked inside. So a good friend was invited over and asked bring his truck (kind of knew what he was getting into) and the towing began... the first question, would it fit through the garage door? It looks taller than the door opening, but measurements confirmed that there was one inch to spare. The trek begins...

    The next obstacle was the gate through our side fence. It's 8 ft wide and plenty big for a car but not for a 38% scale BattleMech so one of the arms was removed (it hadn't been fully secured in anticipation of this event). But even after the arm was removed the Mech just barely made it through the gate (left some paint behind). Will it fit through the gate????
    Just pull really hard!!!
    Finally made it to the back yard!!!!
    With the garage once again cleared it was time to set the legs and figure out how in the heck the body was going to get up on top (we will worry about that later). First on the agenda was to select where to put the thing in the backyard, a strategic position was selected to minimize visibility from the road and surrounding houses. To maximize stability two holes were dug at over three-feet of depth (measured to account for the slope in our yard). It was another few weeks before I could convince that same friend to come back and help set up the legs. Well, it required a lot of brute force, but eventually the legs were in the holes and the thing was up - and crooked! What the heck, I accounted for everything!!!!
    Up Up and away
    It's in but man is it crooked...
    does Jim know how to measure??

    Later, with the help of a friend's come-along the assembly was pulled back out and leaned against the tree. The root of the tilt problem was a root that got lodged in the beam as it slid into the hole. After some pounding with a shovel and post hole digger the root problem was taken care of and the legs dumped back into the hole - much easier this time. They were leveled, secured, and 15 bags (80lb each) of concrete dumped into the holes... these things aren't going anywhere!!!! The next job was to begin encasing the steel legs in wood (and continue thinking about how to get the Mech up onto its legs).
    Slowly encasing the legs

    Finally the big day arrived. Arrangements had been made with several friends to come over one weekend and help get the Mech up on its legs. How was it going to be done? Well, the general idea was to hook a chain hoist up high on the tree right behind the legs and then pull. The angle was pretty bad so two 4x4 skids were set up for the thing to ride up along and keep it moving in the correct direction. Other than that, it was really pretty much figured it out as we went. Our trailer worked out good for a first stopping point. As it got higher Jim convinced his friend to put his truck under it for another stopping point (he did it reluctantly after Jim promised to pay for damages if the thing fell on it). Even the old lawn mower got into the action putting tension on all the cables. In just a couple of hours the Mech was on its legs and the big kids were climbing on top!!

    Up it goes!!!!

    To provide temporary access to the mech (keep the kids happy) a large wood ladder up to the rear door was built from scrapes. The plans are to build a small deck outback for the kids to have better access and to put all their stuff on. The Mrs. climbed up, then through the center hatch, and stood out on top of it - and decided that the kids shouldn't! She declared that it "sure seems a lot taller from up there", and "it has a great view over the top of our house". On July 4th the kids sat up there with their Aunt and said they could see fireworks from "everywhere". The last jobs included finishing up the legs, adding the 3 toed feet, and going all over the thing to do the final sealing. The final touches were to add some more trim paint and of course to add my unit, the Comstar Guard, logo. I consider it one of the finest units around and have teamed with these gentlemen and ladies for three years check us out at http://www.comstarguard.com. I still need to add a logo for a great growing league that we play in, the Free Universe Mechwarrior League (FUML), which is all about hard hitting action check out http://www.fuml.net. It seems to take forever to get all the little stuff added and I'm sure there will be a few extras (like substituting real pipe for some of the painted gun ports) but for the most part this project is finally complete. The back door and temp ladder
    Some last work painting/sealing.
    The finished product...Finally!

    Just about every kid who has seen it has either asked Jim to build them one or gone home to ask their dad to build one. One neighborhood dad (not willing to build one) told his kids that they were very lucky to have a dad like him - one who was smart enough to move to a neighborhood where another dad would build a BattleMech that they could play on. After seven months the BattleMech is finally completed (minus the deck and stairs). It is quite a "fort / tree house" and definitely a conversation piece! Now maybe some of the real home projects like screening in the deck can get started... but then again the kids are never satisfied. One wants a Raven, and the little guy wants either an Atlas or a BattleMech that moves! Some of the kids comments include: "I think it is very, very big and I am scared of heights", "It is beautiful!", "If we put batteries in it, it will move it has metal legs", and "It's very nice and the feet are nice. Daddy's going to make a walking Mech.".

    That's all for now, Enjoy! CSG_Starfury

  9. Perhaps a new Slashdot category... on Build Your Own Battlemech · · Score: 1

    "White-knuckled Geek obsession"

  10. Blinding is great and all, but... on U.S. Developing 100-Kilowatt Laser for Strike Fighters · · Score: 1

    What about popping popcorn from 30,000 feet?

  11. So-called intellectual property on Economics and Open Source Projects · · Score: 0, Offtopic

    This article violates my filter to disregard the ideas of anyone who uses the term "so-called"...

  12. Dark Skies on Serious Home Observatories · · Score: 1

    As the blurb points out the main problem is with city light pollution. This is actually a problem that could be greatly reduced with very little costs. For the most part it's a matter of using a different kind of light that costs about the same.

    Most municipalities have ZERO awareness of this issue, and all it takes is a quick post (don't bother with email) to get the ball rolling.

    For more info, check out the Dark Skies homepage:
    http://www.darksky.org/ida/index.html

    For those of you who were wondering, yes, there is an activist group for every conceivable topic ;).

  13. A highway, but continually shifting off ramps on Road Trip On The Interplanetary Superhighway · · Score: 1

    It certainly seems like as the position of the planets change, the highway itself would alter radically, closing routes entirely in certain circumstances. So, 6 month trip to Mars until February, then no (special) route until two years later.

    I wonder what relationship, if any, this highway bears to the routes that Voyager and Pioneer missions took. Maybe a slingshot route is a continual HOV lane ;).

  14. Widespread implementation of solar power cells? on Light-Emitting Polymer Displays · · Score: 1

    Interesting points. This might lead to an greatly expanded adoption of solar cells to power these, which in turn would drive the cost of the cells down and efficiency up...

  15. Re:Adaptive Camo, anyone? on Light-Emitting Polymer Displays · · Score: 1

    Yeah, I kind of expected to get a funny mod on this. I have, however, seen some amazing demos of camouflage implemented simply by lighting up a vehicle on a ridge to blend in with the sky.

    True invisibility can only really come, IMHO, with true refraction, i.e., bending the exact light that has bounced off the background around the object. Anything else is going to have some kind of detectable artifact. What this kind of implementation could do really well, however, is break up the outlines that compose the visual artifact that our brains resolve as a human being / tank / helicopter.

  16. Adaptive Camo, anyone? on Light-Emitting Polymer Displays · · Score: 5, Interesting

    Weave this bad boy into a full body suit, mount micro cameras throughout, project the image seen behind.

    Voila! Predator. From twenty feet or so, anyway.

  17. Re:The TIPS web page and pdf pamphlet: a review. on MIT Technology Review on Where Orwell Went Wrong · · Score: 1

    Yours is a reasoned and rational criticism of the specifics of the plan (register, dude!). I think, however, that you're ascribing to malice that which can be ascribed to incompetence. The reality is that the people in power are scared shitless, don't really know what they should do, and yet are enormous pressure to come up with something.

    As it is, this system is likely to have such a low signal-to-noise ratio as to be useless. But I think the idea of a centralized clearinghouse for the information is good. I do agree that it needs refinement.

  18. Question... on Volvo's "Safety Car" Runs Windows 98 · · Score: 1

    Does it run in safe mode?

  19. Re:Why do you say that? on MIT Technology Review on Where Orwell Went Wrong · · Score: 1

    I would argue that many are foolishly ignoring the present, actual dangers.

    I don't like the fact that people should be looking out for suspicious characters. I really don't; suspicion is antithetical to a free society. But me not liking the choices doesn't change the choices.

    Let's consider this TIPS program. What it is really, if you've actually read the charter for the program rather than spouting off on it to look hip and ironic to your friends, is a centralized place to report suspicious activity, with a special program for folks who have a good opportunity to see it, like truckers. If you're opposed to the program, you are opposed to that. Now let me ask you, if you're say, a truck driver, and you see something suspicious, what exactly do you think is the best way to facilitate getting this info to the people who can help?

    I suspect that your entire response to this is that "well it could lead to...". And you're absolutely right! I'm a hardcore, drug-legalization, tax protesting libertarian, but if your approach to this situation is "well, people just shouldn't be looking for suspicious things because in an ideal world, we wouldn't have to", then you're just out to lunch.

    As Americans, we must absolutely be on guard against infringements on our liberties. But buddy, let me tell you, whatever possible future dangers this program poses are dwarfed by the reality of people inside this country today who are devoting their creativity and intelligence to killing your wife and children.

  20. Re:Why do you say that? on MIT Technology Review on Where Orwell Went Wrong · · Score: 1

    Isn't it just like a Slashdotter to fret over possible future threats and actual present ones.

  21. Clockless primer on Clockless Computing · · Score: 3, Informative

    Here's a somewhat shorter primer from Wired:

    http://www.wired.com/news/topstories/0,1287,6179,0 0.html

  22. Eric Idle sketch on Lost Python Sketches Will See The Light · · Score: 2, Interesting

    I remember seeing an interview with Eric Idle where he performed about thirty seconds of a sketch that was deemed too rough for the BBC. It involved a pretentious wine tasting where the taster would attempt to guess the name of a wine after tasting it, "Chateu LaFite '45, from the south of France?" And then the host would announce, "no, that is wee-wee."

    I obviously can't do it justice here, but I laughed my butt off.

  23. Re:Chemical Experiment Toys on Where are the 'Construction Set' Games? · · Score: 4, Informative

    I couldn't agree more. There's a principle that's been lost in this country called "assumption of risk". This simply means that if you buy a chemistry set for your kid, you probably ought to turn off ER and go play with it with him.

    I went to castle Neuschwanstein outside of Munich last winter. The best vantage point is a bridge high above the castle, and getting there required walking up a very icy path. People were slipping and sliding all over the place, and all that I or the other Americans that were with me could think of was "man, not in America. Somebody would sue."

    The cost of litigation is such a terrible example of a rotten apple spoiling the bunch. Don't get me wrong, I'm all for legitimate damages when a party has caused harm, but I really think we need to try to get back to some degree of personal responsibility...

  24. Re:Repairs Anyone? on GM's Billion-Dollar Fuel-Cell Bet · · Score: 2, Insightful

    Ugh...this got modded up to a 5?

    No, the greedy corporations aren't making cars to save the world. I don't remember reading that in the article, either. But I suppose they're not up on a fucking cross for mankind like you either. No, those selfish bastards want to buy houses for their families, send their kids to college and, unbelievably, making even go on vacation every once in a while. I can't wait to get those bastards up against the wall when the revolution comes.

    (Deep breath)...okay. What exactly is the impact of supporting a fuel cell initiative? Uh, cleaner cars. Remember that the choices are not:

    A. Dirty, loud, unreliable cars
    B. Squirrels and bluebirds singing the park

    the choices are:

    A. Dirty, loud, unreliable cars
    B. Clean, quiet, more reliable cars

    Until you can learn to realistically balance alternatives, your only choice is A.

  25. FC's require a redesign on GM's Billion-Dollar Fuel-Cell Bet · · Score: 2, Insightful

    I think the article makes a great point in that you can't expect to simply pull an ICE out of a car and plunk in a fuel cell and expect it to perform anywhere near par. This is not necessarily because of any technological deficiency of the fuel cells, but because of hundreds of design elements that are best-case trade-offs for an internal combustion design.

    Unfortunately, the world's unconscious is so used to the emergent design brought about by these design elements that it's difficult for them to look at a radically new design and still think "car".