The Wimshurst machine is seen largely as a curio today, but it did have genuine scientific applications back in the day. Beyond simply using it to investigate static electricity, its output could ...

Electrets produce a semi-permanent static electric field, similar to how a magnet produces a magnetic field. The ones in microphones are very small, but in the video after the break [Jay Bowles ...

Static electricity goes by multiple names ... "However, I decided to try again with this same set of samples the next day. The results looked better, so I kept trying until, at the fifth try ...