Another non-coil gun post

Apologies for the poor quality

This is a video of a circuit that takes the output of an audio jack and runs it through a transformer, the AC electricity coming out of the transformer is fed through a bridge rectifier that turns the signal into DC. This is pulsed DC and can be fed into capacitors and use to power things. (Note: only very small amounts of electricity are available from an audio port) In this video a white LED is connected without capacitors so that the LED pulses with the music.

New Projectile

Yes this projectile has some inefficiency due to the rounded end which reduces magnetic coupling, but it is also sharp *malevolent laughter* and so it is aerodynamic.

As mentioned earlier we have done some refined tests and pictures and data are to come.

Photo thanks to Quentin Swager

Fun with a disposable camera

So... The next semester has began, and so has the new year.

Quentin set up a vastly more accurate method of measuring the projectile speed using his camera equipment. Pictures and data to come, but for now here's what I did most recently.

I had a disposable camera on hand and wanted to do something with the flash charging circuit. Since these have been used as pranks to shock people, I thought, "Why tether your shocking power to a door knob? Why not make it portable?" So I did just that.



As a sidenote: electricity is dangerous, don't try this stuff unless you know what you're doing.