In this video, we explore the Wimshurst machine, an electrostatic device created around 1880 by British inventor James Wimshurst. These machines were used in 19th-century physics research and ...

This electrostatic machine will spark from the round discharge electrodes when the crank is turned steadily. The crank rotates Plexiglas wheels that have small metal discs on them. Redistribution of ...

A FORM of this effect lately presented itself, which seemed in some ways new. A thin jet, 5 feet high and arched so as to be 3 feet at the base, was falling in a feathery spray. At 13 feet distance a ...

THERE is an error, for which I am responsible, in my letter of July 24 (p. 31). The words kathode and anode should be interchanged in one sentence, which should then read thus:—“The same reasoning ...