Slashdot Mirror
Scanjet Music
Popadopolis writes "Hack a day is reporting that HP Scanjets have a hidden ability to play music. According to the article, "The HP ScanJet 3c/4c have a variable speed scan head that is driven by a stepper motor. The Play Tune command can be used to move the head at different frequencies." They also have a video of a scanner playing "Fur Elise.""
And so can printers. (2000)
Yes, yes, I'm in the process of doing a remake this year along with some other simular songs.
That's like the guy who made speakers out of some old hard drives.
The theory of relativity doesn't work right in Arkansas.
I could do that on my Commodore 1541 Floppy Drive.
Fuck, I'm old. Sigh.
-
N3P: Two-year college level training in how to become a successful Project Entrepreneur in Open Source!
Not "Animal Skin Elise".
This reminds me of a program for probably 15 years ago (or maybe 18?) that used an Epson dot matrix printer to make music by printing. I think it only played 3 approximate notes, and really slowly at that. Does anyone recall this software?
I always figured those motors could be used in this fashion -- whenever you hear them operating you can definitely hear a musical quality.
HP versus the RIAA, who will win?
But does it play the Batman Tune ???
Julien. http://free.hostdepartment.com/8/81fortune/
Old news... I discovered this some 8 years ago! There was some software on the install floppy that came with it that played several different songs!
Hero Hog AKA: Speedy, Dr. Speed 01000111011001010110010101101011
The ATM near my house does that "charge" bugle call while it prints a receipt.
I worked for an outsourcer doing HP printer/scanner pre-sales in late 99. We knew this then, and used the trick to impress the new guys. I found it on the net then, not even from an HP site. I'll have to hit the wayback machine to see if I can find the original place.
It must be a slow monday. There is either nothing happening, or this has been in queue for over 6 years, and just got approved. Explains why my stuff never gets approved.
-------------------------------------------------
If you print the linux kernel, it sounds like angels crying.
--
United Bimmer - BMW Enthusiast Community
How is this news? I remember selling HP Scanners back in 1996 when they came with a small program that would let you play a few different pieces of music. It's taken this long for someone else to notice? Wow!
I love stuff like this -- you can make music with a scanner...awesome. Other than usage as a gee-whiz or a joke, is there any practicality to it other than the excercise of making it happen?
Then again, that's the true spirit of "hacking" -- and I am old enough to remember when a hacker was someone who took hardware like this and made it do something that it was not "intended" to do and quite often, novel applications and entire product lines were born as a result.
Still, I doubt that this will be attached to my HD home theatre and be an active participant in the audio portion of whatever movie I'm watching.
But its still cool.
Geez, and I really wanted to see this movie.
"I always figured those motors could be used in this fashion -- whenever you hear them operating you can definitely hear a musical quality."
The Winchester (remember those?) hard drives had a very musical quality to them.
The sqeaky belt plays The Bells of St Mary very very well. I hardly have need to strap down mice any more.
It's it amazing how we've trained our ears to this rather loose form of "music". When my computer does a song and dance, I'll be entertained. Wow.
"I love lamp."
Now then, with an old keyboard (I've found the Electrones with the 12 function and 24 programmable function keys to work the best), a manifold gasket and three plastic milk containers if you then...
I was wondering: where the hell do they come up with these ideas?
Then I saw the server name:
ganjatron.net.nyud.net
The GanjaTron...
Ok, question answered...
Marry had a little lamb can also be played on a touch tone telephone manually.
Man am i bored to pot to this. Oh well.
Renault did something similar to celebrate their world championship win with the RS25 V10 Formula 1 engine -
n ews=tcm:3-41673
http://www.renaultf1.com/en/car/engine/index.php?
Not only can printers do this but the scanners have been doing this since at least 1997. I remember we played with this stuff in a computer lab on campus when I was in College. I'm guessing this is a dupe but I don't really feel like searching through almost a decade of Slashdot to find the link :)
This sig has been temporarily disconnected or is no longer in service
What it actually prints out is "Ouch. Quit it!"
Doesn't this mean that the printers will have to come with a means to detect if they are going to be used to play or copy DRM'd music?
Let me know when you have a whole lab of these networked and synced together playing like an orchestra. THEN you might have something!!
For instance, as early as 1964, the IBM 1403 line printer was programmed to produce music. Here is a page with a song sheet. While I cannot find a reference, I remember someone else at IBM who used multiple tape drives as a kind of orchestra, also in the 1960s.
Doesn't this mean that the printers will have to come with a means to detect if they are going to be used to play or copy DRM'd music?
Yep. It'll come with SSSSPMT (Super Silly Secure Scanner-Played Media Technology)
You can hold down the "B" button for continuous firing.
Relive the happy old days, listen to machinae supremacy's SIDologies. Part 2 was released today (~13min, 17.6MB), completing the trinity. You can get the other two parts from their website.
Let's see it do Flight of The Bumblebee
Back in early 80's, I was in an industrial band, and we used several dot matrix printers in some of our songs. We also used a large mainframe printer in one song, but it had to be recorded on a tape, as it was way to heavy to move around.
AccountKiller
On my old Osborne 1 I had a dual floppy drive setup (and no hard disk.) The speaker wasn't capable of much more than a high-pitched beep that sears my soul to this day. The floppy drives were noisy buggers, especially when the disk arm moved, which you could control pretty directly by bypassing the BDOS and going to the BIOS. (Memory protection? What's that?)
The speed wasn't anywhere near high enough for music, but somebody had written a freeware program that could use them to create a kind of gravelly (and frankly unintelligible) voice synthesizer.
In the 80's, the nerd thing to do was to write assembly programs for the Sinclair. IIRC, you would convert the opcodes (which we all knew by heart) to ASCII, write a REM line with that, and run it (which I don't recall how).
I'd write loops inside loops, with changing and interdependent step sizes, and it would generate sounds on a FM radio sitting on the computer top (I KNOW my Z80 clock was 3.57MHz, way below FM; it was most probably due to harmonics interference or the radio IF).
I could get beats and interesting disco-like effects, and make alien phony calls. Then computers started shipping with speakers and sound processors and spoiled all the fun.
Wow, now this was cool...
/. coverage of my dog who can fart Beethoven.
I'm waiting for
Navicula hydraulica plena anguilarum est. Omnes castelli tuus nostri sunt. Ed elli avea del cul fatto trombetta.
Fuer Elise is also acceptable.
I want to drag this out as long as possible. Bring me my protractor.
But will it do the ultimate song? Boston's "More Than A Feeling"?
Are you sure that wasn't AM? FM seems a little far-fetched. I have tried some program on my calculator (also a Z80 btw) that let's you play on the keys and listen in you AM radio.
Swedish plasma phys. PhD student; MSc EE; knows maths, programming, electronics; finance interest; seeks opportunities
The same guy also made slashdot out of paper and crayon
New HD-DVD hard drives will also be able to make pancakes.
GetOuttaMySpace - The Anti-Social Network
That definitely takes the cake over the scanner.
does it print linux?
Wonderful old scanners .. I paid $700 for mine way back when. I'm still using it eight years later, on a Linux machine because HP won't update the drivers to work on newer Windoze operating systems.
.. you need to reboot the system because just simply rescanning the SCSI bus or unloading/reloading the module won't clean it up.
However, they have some nasty problems. Mine keeps causing errors on the SCSI bus, which is very hard to recover from. Apparently even with the cheap supplied ISA SCSI card (Sym53416?) and HP cabling, it still throws a lot of errors. Under Windows the errors were handled pretty transparently. Fedora Core 2 throws a hissy fit
I think it is great that folks think like this. Innovation comes from places that aren't often trod. If you think about it, this type of non-mainstream thinking gave us Lexan(tm) and Post-It(tm) notes.
"Everything is musical if you give it a chance(tm)."
A Passionate Independent Musician
yesterday, this link was posted in a comment as part of the discussion to a story "guy makes scanner out of optical mouse". a couple of other posts pointed out that hackaday.com has lots more stuff like this.
today it makes the front page.
slow news day?
my password really is 'stinkypants'
Printer and Xerox music
1 36825794/sr=11-1/103-5928890-1815068
The User - Symphony #2 For Dot Matrix Printers:
http://www.emusic.com/album/10735/10735064.html
Xerophonics:
http://www.amazon.com/gp/product/B00008NGDB/qid=1
Are you kidding? This is SO OLD. If you even have one of these scanners still, you probably haven't seen the internet yet, or this posting... Odd choice of stories.
I am an eternal pragmatist. Any chance someone is playing a simple joke on us all and has actually doctored the sanner/printer video using a simple tool like Anvil studio? It wouldn't be that hard and the thought of thousands of people spending half their Monday trying to reproduce it *is* pretty funny. IN fact, I am ROTFL now.
"Question everything, including this!" - http://technoracle.blogspot.com/
I still belive that the dogs barking Fur Esles (sp) is more entertaining.
Don't kow about the dogs? Google it! It is probably on the same site as dogs barking Jingle Bells.
The Rapture is NOT an exit strategy.
...when I was a kid, we used to make music on dot matrix printers.
It doesn't really do anything practically useful, but something you ordinarily wouldn't think of. I always think they're the funnest kind of hack to pull off.
You see? You see? Your stupid minds! Stupid! Stupid!
The switch on beeps from a BBC.
2 0BBC.mp3
The head of a printer.
The disc driver whirring.
Sounds like a record to me...
Oh, I forgot, it's already been done: http://www.bluedust.com/pub/mp3/Demonstration/My%
A couple of years ago I developed a 4DOF robot for the pharmaceutical industry for testing blister packs for child resistance & QA purposes. With four variable speed steppers, a few Friday afternoons worth of coding had it playing four part harmonies. A couple of solenoids and some pneumatics provided basic percussion. It was quite possibly the neatest useless thing I've ever done.
HP was happy enough about this that their old "HP Journal" -- a monthly tech. magazine that would go in-depth into HP technology -- had an entire sidebar about the exact escape sequences needed to play the music. It was a sad day when they stopped publication; it was a fun read.
The same issue had, as its cover story, an article about how strap-on heart monitors work. Very cool, and the cover picture, of a small baby with a monitor on its foot, was striking. The same technology was put onto my oldest several years later when she was in the hospital right after being born.
Want a sig like mine? Join ACM's SigSig today!
You had a tape drive?
*Luxury*
If *we* wanted to make music, we had to write PL/1 code that would overdrive the IBM 026 card punch while hand-feeding it rolls of paper towel (the old bleached white thick stuff too, none of this modern namby-pamby recycled "natural finish" crap neither) to generate Duo-Art player piano reels!
We used to *dream* of having tape drives!
DG
Want to learn about race cars? Read my Book
My IMSAI 8080 S100 system used to have phaser and warp drive sound effects. No sound card -- way to hard. Just set an AM radio next to the machine while playing the game and tune so you can hear the RF broadcasting off the bus. Actually sounded similar to the effects on the star trek show!
The band treewave uses old computers, game consoles and an Epson LQ500 as their instruments. I find it amazing what they can do with old equipment like this.
www.brownsauce.org
A similar techinique was used by the LeScript word processor in the TRS-80 model 3/4. The cassette relay clicked on the keystroke to simulate typewiter sound. If I remember correctly, the device independent I/O on the model 4 (TRSDOS 6) permitted inserting a filter on the keyboard input so you could click in any program, or insert the click-filter on the serial port and have your Compuserve input click like a TTY. A cool but useless hack.
interestingly enough, the site is just old enough that one of them has a rant on the viability of the "forthcoming" DVD format and surround sound.
How old stuff has to get in order to be posted on Slashdot as something new and "amazing"? Ability of HP scanners to play music is, like, first thing you know when you start working with HP scanners. In the 90's HP scanners even came with HP-supplied utility called "HP Jukebox" and a couple of "music" files that could be played on stepper motor. Later they stopped shipping the utility, but the "feature" was always there. And now you have people on Slashdot who never heard about it? That's what's actually amazing...
So will the RIAA impose a Music Levy Tax because this device can play copyrighted music?
I haven't thought of anything clever to put here, but then again most of you haven't either.
The band Man or Astro-Man? used to perform a song onstage called "a simple text file" which involved bringing out an Apple ImageWriterII, setting up a microphone, and letting it play. It's actually a pretty good song.
Transformer di Roboter used the Mac boot chime in their cover of Michael Jackson's Stranger in Moscow.
Circumcision is child abuse.
Why did Ludwig write this awful piece?
It was not free
Of that I'm sure.
The money, all in cash, came from Elise
Thus it was she
He wrote it Für.
(sung to the tune of Für Elise, of course)
Edith Keeler Must Die
On the disk/cds that come with the scanjet 4c, there is actually a program to play music. IT is not installed by default, but you can run it straight of the CD.
The IBM 1403 http://www.columbia.edu/acis/history/1403.html was immediately programmed to play music. It was a chain printer so the time between successive hammer hits depended on the letter sequence.
My younger brother did this way back in 1983 on a flat bed plotter driven by a dedicated mechanical CAD system. The plotter table was about 6 feet by 5 feet, and had a multi pen head that traversed the 6 foot X axis beam, which translated across the Y axis by drivers on each end. All stepper motors. Being that you could dither X as well as Y axis depending on the curve you were drawing, it presented 2 note polyphonic. Tones were fun, but the rhythm capabilities were far more interesting. The whole assembly was heavy, so the SPL was fairly high. You didn't need any amplification to hear it six or eight feet away. It gave a very good effect of a DJ with two turntables (but no microphone...).
He generally reserved time at night when the lab was empty, but on more then one occasion had a small audience of students using the lab that stood there staring at the plotter in "WtF !?!??!?" mode. The shapes it drew were fun to look at afterward. He used to change pen colors along the way (multi pen head) so that you could track shapes to sounds. (Oooooo, that 'red' track is excellent!) He finished a two year product and machine design program, then after working in the mechanical CAD field for a couple years, found his muse and went back to school for a BFA. He is still involved in product design as a mechanical engineer doing CAD for analysis and design. He is also still painting. I don't think he is making plotters sing anymore.
Is there anyone on this list that was at SUNY Alfred in 1983 that might have witnessed one of these events?
So if you are reading this little bro', I am proud to be your big brother. You were plowing new ground before anybody had any idea what you were up to.
The Mac OS X utility Hardware Monitor can play a tune on the G5's power supply by controlling the amount of load on the processors. Apparently the power supply makes different sounds depending on the load on it.
http://www.bresink.de/osx/HardwareMonitor.html
The big old IBM hardware used to put out enough RF to produce sounds from a transistor radio placed on top. Carefully crafted loops in PL/1 code on punch cards would produce an amazing variety of music.
We used to impress visitors at my high school's open house with this trick until the Apple ][ and Commodore PET arrived.
If you don't want to repeat the past, stop living in it.
...because otherwise you're admitting that you don't get the joke :)
Now let's see you be able to press a button to scan sheet music and play that as it scans......
Here's a mirror in case it goes down: http://slashdot.whatsmykarma.com/scanjet-elise2.mp g.
Saying "I'll probably get modded down for this" in a post is the best way to get it modded up.
It's the Beethoven's Symphony No. 9, last part, which is music for the poem "Ode to Joy" ("An die Freude").
It is also EU anthem.
When I was at my old co-op job at an industrial controls manufacturing company, back in the days before I decided to become a professional student, one of the guys out on the shop floor told me quite a few stories about interesting things that happened there over the years. One of these stories was about a guy who took a handheld tape recorder, recorded himself saying something, and then hooked the output up as a trim to the torque control for a 100hp industrial motor. He started up the motor and brought it to speed, and then hit play on the tape recorder. Apparently, you could actually hear his voice coming from the motor as the torque adjustments caused it to vibrate.
:)
Of course, other stories I heard included a motor throwing a chunk of the rotor into the shop ceiling three storeys up, or another motor coming unbolted from the floor while it was spinning up and chasing a guy across the shop. Yeah, I can't confirm that any of them were true since they all happened years ago, but they were all funny
Maybe the story is apocryphal, but it would seem to fit the technology of the time, and Feynman's sense of humour.
If it weren't for deadlines, nothing would be late.
like a baby?
Susan "'had' a 19 oz baby" (boy or girl, doesn't matter).
Mary had a little lamb. I wonder if she gave birth to it.
I had a single 84 oz steak. I felt bloated as hell. Spent the night strapped to the toilet. Strange musical emanations....
Oh, wait, she "possessed" a little lamb.
But, did she make it do "evil things"?
(had, ate, possessed, owned... boy the way words can be stretch when out of context, (nevermind having heard the tune as a kid... I never liked the damned song anyway...))
OK, back to listening to the bubble-gum Roller Girl "I Keep on Rolling" song...
Previously: "Linux... Toward the Sunrise..." Now: "Linux... Toward the-- No, now, part of Every Sunrise"
I hate to say it, but when I bought my 4c many many a year ago it actually came with the software. I believe it had Fur Elise and a few others already attatched.
There was a commercial version of the classic Star Trek game, for the TRS-80 model I, that had an explicit feature of RFI sound effects. You could get better computer music with RFI on those things than any other method :-) Desperate for any electronic music instrument, I did a composition that used recordings of TRS-80 RFI and cassette port sounds (and cassette relay buzzes). My philistine high school music teacher didn't understand, so my pioneering work was graded poorly and forgotten. :-)
-fb Everything not expressly forbidden is now mandatory.
The Z80 processor in it run at about 1.2 MHz, overwhelming any AM radio within spitting distance. Someone realized that you could use that "bug" as a feature, and included sound effects in Space Invaders by putting an AM radio next to the computer. Any frequency would do...
Later I typed in a Basic program (we had a tape drive but no floppy) and played the theme from this great big hit movie from a couple years before -- Star Wars.
That was 1980. I was in 9th grade. Yeah, I'm feeling old.
Anything that can be made to vibrate at controlled frequencies between say, 30Hz and 4kHZ, can make music. I guess what's interesting here, is that things that don't have a direct means of controlling their frequency, have interesting hacks that lead to indirect control. That's cool, I guess. It's a tradition that goes back further than the old line-printer art. Really impressive would be a line-printer art that both played a tune AND printed an interesting picture, especially if the tune and picture were related.
But nothing hit me as hard as some of the speech output from 8-bit machines that barely had sound output capabilities at all. That's up there with the tricks people used to deliver the impression of more colors than were "possible" on certain machines, or the really impressive things that were done within the limits of 128x64 graphics, or even *no* graphics.
-fb Everything not expressly forbidden is now mandatory.
Has anyone else had a problem with their HP Scanjet drivers requiring multiple GB of space with no option to install only a few MB? Surely the drivers do not need 4 GB of space on my HDD, but when I choose to install the drivers, there it is -- taking up 4 GB of space while presenting me with no options to pare down the install size. My old Mutek scanner I had 10 years ago scanned faster and took up a few megs of space with drivers at the most.
I can't remember if I found it here or not... But recently, I came across an mp3 of a Renault F1 motor "playing" "We are the Champions" by Queen. If you have any mechanical sympathy at all, F1 engines at full song make your teeth hurt, but here the engineers programed the powertrain management computer to vary the rpm's to make music. With their virtually weightless flywheels, those things can pick up and drop rps's almost instantly. I'll see if I can dig up the mp3.
change it.
In other news, the RIAA, ASCAP and BMI have filed a joint lawsuit against HP for copyright infringement.
Lawyers for the plaintiffs stated: "We believe HP has attempted to deliberately circumvent the Digital Millennium Copyright Act by manufacturing a device (printer) that includes the means to to perform and playback copyrighted songs without the consent or permission of the copyright holder."
"Furthermore" the plaintiffs allege, "HP has tried to conceal it's illegal music reproduction device by disguising it as a computer printer. We are asking the court for an order barring HP from further sales of it's "printer" and payment of royalties in the amount of 800 million dollars.
"We will not tolerate the manufacturer of devices whose overall purpose is to bypass copyright protection for copyright holders of music. We believe illegal distribution of copyrighted material on sound reproduction devices such as HP's "printer" harkens the next generation of illegal music distribution as the successor to illegal file sharing programs."
My ScanJet 4p has "Ode to Joy" embedded in the firmware. If you set the SCSI channel to 0 and hold the green "scan" button on the front while switching on the power, it will play. I always thought this was a neat easter egg..
No one believed me hehe.. I had a HP Scan jet, and when I unplugged the power cable, and held down the scan button, and plugged in the power cable it played classical music.. The name of the song escapes me but its quite famous. Try it!
Did anyone see that South park ep where towlie played the tune to funkytown on the keypad?? HOW do you do that..
www.sayyad.ca/phonesongs.html
:( .. if anyone knows the sequece please fill me in .. thanks.
But still no funky town
The old Palantir scanners - mid 1980s- would play Wagner's Ride of the Vulkuries on the stepper motors during the self-test. It was really amazing and went on for quite a long time increasing in intensity and complexity.
But along with the original Internet toasters (two implementations in 1987) the Palantir scanners seem to have vanished.
..because it wouldn't run under Windows 98. That's right, there were no drivers for the SCSI card that came with the 3c beyond Windows 95. You could purchase a SCSI card from a third party vendor with which it should work.
;)
I said 'screw that' and purchased a whole new flatbed scanner for only slightly more, much later
( I actually got it running under 98 by disabling the DOS device drivers - but it was quite flakey; only scanned once in a series of attempts. )
That said.. I miss the 3c. It was relatively fast and quiet. This new one's fairly noisy; but faster, much higer actual resolution, can scan film and slides properly, and I can get 16bit color output from it.
But still.. I miss the 3c.
Makes me wish I'd kept it around - just to sell to one of you Linux people, though
To celebrate their 2005 F1 championship victory, and the last race for the V10 engines, the Renault team persuaded one of their V10's to sing! The solo performance of the Queen classic "We are the Champions" was performed by one of Renault's RS25 V10 engines at the teams dyno testing facility in France.
e Champion_tcm3-41644.mp3
RS25 project leader Axel Plasse, explained that making an engine "sing" is a fairly simple matter of finding the engine rpm that generates an exhaust sound of the right frequency for each musical note. The engine management system of the dyno is then programmed to manage engine rpm and duration to "sing the song."
http://www.renaultf1.com/en/binaries/RS25_WeAreTh
how is this offtopic? i would at least say -1 Troll, but Offtopic? Come on, i think its time i turn my mod points back on, it was so annoying getting week after week i turned it off.
This information has been available on various easter-egg lists for a long time.
It works fine with my SJ5 as well...
In the 70's, there was an old DECUS (Digital Equipment Computer Users' Society) program that could play four part tunes on a transistor radio placed near the console of a DEC PDP-8/I minicomputer. It didn't matter what channel the radio was tuned to. I always assumed it was something to do with the ferrite cores (each bit visible to the eye) making up the memory. One of the tunes that came with the package was Air on a G String, in the manner of Walter/Wendy Carlos's Switched on Bach. The fidelity was not bad.
Because I want to scan stuff, not play silly music!
I want my scanner to be good at scanning not at other stuff...
SCIREV.NET - fanfics,reviews & more
You can do perfectly good single-channel music on the PET, by cycling the status pin on the serial port, then placing a radio near it. You could also use the SoundBox, which IIRC plugged into the serial port, but it really came to the same thing.
It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
Correct, the ZX80 had no sound chip, but the video output was on a standard TV VHF channel. IIRC it could only drive the screen while waiting for keyboard input, and stopped the signal while calculating. The change in display mode would cause 'noise' from the TV - but it was very difficult to control.
:-)
The ZX81 improved matters slightly, you could elect to run the machine in FAST mode, which switched off the display under control of your BASIC or Z80 assembler program. Do enough mode switches, and your 'noise' becomes 'sound', and eventually 'music'
There were plenty of programs published for the ZX81 to allow it to make music using this side-effect of the TV. So your memory is pretty much correct, it's possible (I didn't use a ZX80, so I can't say it was definately possible there, but it definately worked on a ZX81)
Quick wafting zephyrs vex bold Jim
Y'all need to check out tree wave, a Dallas band that makes really compelling music using C64s and dot matrix printers.
Their single "Sleep" has been in my playlist for years.
The Humblest Mollusk on the Net
...some time ago.
Check them out here
"There are people who do not love their fellow human being, and I _hate_ people like that!" - Tom Lehrer
yes, modding away.
This is hardly new. Back in 1997, I remember being "treated" by a friend to a selection of Christmas carols played on an HP scanner.
The VICE emulator supports the sound system and documents how it worked, though, so you can still re-create those bygone days.
It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
Likewise my Processor Technology SOL-20, which I got new in 1977 for a small fortune. IIRC its Star Trek game had sound effects which showed up in a correctly-placed AM radio...
I got to hear that sometime in the mid-1970s. Stirring.
Some Scanjets will play a tune if you hold the Scan button while powering on.
Sorry to be picky, but you actually have to translate the vibrations into variations in air pressure in order to hear them. Of course, if the "vibration" is of a physical object in air, then the job is done. But if it's in an electronic circuit then you need a loudspeaker.
Anyway, my point is that lots of things oscillate, but they have to oscillate in air for us to hear them.
drive it lengthwise down the center of a cigarette so the ash wouldn't fall off while he was smoking
A similar story is told of Winston Churchill.
__
Men with no respect for life must never be allowed to control the ultimate instruments of death.
GW Bu
Here is a story about dot matrix printers. And, the number one ranked comment was from a guy named matticus, who writes about Ode to Joy with his scanjet. Here is another link too someone elses easter egg.
I'm always swamped with work to do whether employed or NOT and desperate for money and yet all this dipwads have time for this?
Sheesh! I wish I was so well employed! Right now I'm fighting for housing and hoping I can keep a job if I can ever get one again!
"Oh! Your too disabled to work here!" and other B.S. disguised by: "we found someone more qualified".
I'll think of a really good SIG just before I die.
Back when I was in high school a C64 with a 1541 drive was the latest and greatest (yeah, I'm THAT old). Most of us couldn't afford getting one, and the first guy to get one was a *TOTAL* ass. So we made a small program, disguised it as a fun game and gave it to him. All it did was to bang the drive head against the barriers as fast as possible, which destroyed alignment after about 300 iterations or so. Since he could not figure out how to align it himself, he had to go to the store and pay for it. The REALLY fun part was that he did it repeatedly, and never wised up to the fact that the program was bogus - he thought it was defective instead :-)
Somewhat evil I guess - but that's just how it works in highschool...
Black holes are where God divided by zero