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 mahogany 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) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / UIG / Universal History Archive |
Bildgröße: | 3530 px × 2685 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |