This was device I made largely based on the Solar Theremin schematic found on the Popular Science website. Instead of using two Photoresistors, I used two 5 kOhm variable resistors. You just play with the two knobs to adjust the tones.
. . . The Clay War was removed by YouTube because Warner Music Group claimed copyright infringement on the audio track which was The Ride of The Valkyries. I was able to find a public domain copy of Die Valkyrie which is essentially the same. I can re-edit it with the new track but I might have to do without sound effects.
. . . Warner Music Group also claimed infringement on Stopmotion Flight Tutorial so the audio has been disabled. I can probably redo the audio without much of a problem.
This was a pretty cool attempt at using Green Screens. The Green Screen here is actually just a $0.95 bright green poster board. You can buy these at hobby stores or Target/Wal-Mart.
Here's a link to where I got the stock footage of driving (it is free to share and to remix/edit). You can download it for free but you have to convert it to AVI format to use it in Wax.
http://www.archive.org/details/IMB_SF_R36_C10
The static at the end of the movie can be found here:
http://www.archive.org/details/Static_385
I also made the green screen footage available. You can download it here for free.
http://www.megaupload.com/?d=AKUO5790
If you edit this video you can post it to YouTube and post it as a response to my video.
There's no practical use for this but it's a cool trick.
The reason this works is because both electric motors and speakers use electromagnets. A coil of wire is attached to a a piece of felt and placed over a fixed magnet. When electronics flow trough the coil, it creates a magnetic field and it repels against the fixed magnet which causes impulses. The felt also impulses which creates sound.
An electric motor works the same way except the coil of wire is attached to an axis that is between to fixed magnets. When electrons flow through and create a magnetic field, the two magnets repel the coil and causes it to spin. Then if you attached it to a cup, it converts the impulses into audible sound.
Try it. If you post a video you can add it as a response to this one.
All of the previous blogs have been updated, so all the videos are operational. I haven't checked the links but if you find one that doesn't work, just let me know and I'll fix it.