In this case, his hand is helping to store the charge. Credit: public domain Though not exactly a machine for generating static electricity, the Leyden jar is a critical part of early ...

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 ...

The Model 7905 digital static meter is designed to measure static electricity and improve safety and efficiency in ...