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).

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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).

SuperStock offers millions of photos, videos, and stock assets to creatives around the world. This image of 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). by World History Archive/Image Asset Management is available for licensing today.