Title

Investigating atmospheric electricity in normal cloudy conditions

Caption

Investigating atmospheric electricity in normal cloudy conditions, but not during a thunderstorm. GF: windlass for raising and lowering a kite. AB: wooden frame supported by mahogony legs with glass cones covered with brass funnels to prevent glass getting wet. H: drawing spark from conductor and experiencing shock similar in strength to that from a fully charged Leyden jar. Leyden jar was attached to conductor, but it was not fully charged. Engraving from "Practical Electricity and Galvanism" by John Cuthbertson (London, 1807).

Info+

Photos12.com - Ann Ronan Picture Library

Credit line

Photo12/Ann Ronan Picture Library

Reference

ARP07114_011084P

License type

Rights managed

Available size

27.3Mb (2.8Mb) / 11.8in x 9.0in / 3543 x 2695 (300dpi)