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An attempt to replicate the experiment killed Georg Wilhelm Richmann in Saint Petersburg in August 1753; he was thought to be the victim of ball lightning. [4] Franklin himself is said to have conducted the experiment in June 1752, supposedly on the top of the spire on Christ Church in Philadelphia. However, the spire at Christ Church was not ...
Georg Wilhelm Richmann (Russian: Георг Вильгельм Рихман; 22 July [O.S. 11 July] 1711 – 6 August [O.S. 26 July] 1753) was a Russian physicist of Baltic German origin who did pioneering work on electricity, atmospheric electricity, and calorimetry. [1]
The kite was still able to rise and fall, but only the part of the string between the antenna and the kite itself could rise, and the antenna remained a constant length. [10] The tests were considered a success, and messages sent using a field wireless set with the kite antenna were heard 150 miles away, where the same set could transmit only ...
Richmann's law, [1] [2] sometimes referred to as Richmann's rule, [3] Richmann's mixing rule, [4] Richmann's rule of mixture [5] or Richmann's law of mixture, [6] is a physical law for calculating the mixing temperature when pooling multiple bodies. [5]
Franklin's experiment, in its initial conception, depended on the completion of Christ Church in Philadelphia, whose steeples would be sufficiently high as to attract a lightning strike. Franklin then conceived of an alternative experiment that involved flying a kite during a thunderstorm with a metal key attached to the string. [3]
The experiment's purpose was to uncover then unknown facts about the nature of lightning and electricity. Reason A Bald Eagle swooned over the canvas, giving birth to an electric celebration of red white and blue, as Uncle Sam stuck his middle finger up at Zeus above, and Ben Franklin (surrounded by angels, because why not) tamed the Greek god ...
Benjamin Franklin promoted his investigations of electricity and theories through the famous, though extremely dangerous, experiment of having his son fly a kite through a storm-threatened sky. A key attached to the kite string sparked and charged a Leyden jar, thus establishing the link between lightning and electricity. [51]
The same decade, Romas conducted the kite experiment that Benjamin Franklin proposed in 1750 in a letter to Peter Collinson, but that had not yet reached France. Raising a wire-wrapped kite in a thunderstorm, Romas proved the electrical nature of lightning. During his experiment, he noticed ten feet long sparks and explosions.