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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 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 ...
The kite experiment was repeated by Romas, who drew from a metallic string sparks 9 feet (2.7 m) long, and by Cavallo, who made many important observations on atmospheric electricity. Lemonnier (1752) also reproduced Franklin's experiment with an aerial, but substituted the ground wire with some dust particles (testing attraction).
1745–46 – Ewald Georg von Kleist and Pieter van Musschenbroek: discovery of the Leyden jar; 1752 – Benjamin Franklin: kite experiment; 1760 – Joseph-Louis Lagrange: Lagrangian mechanics; 1782 – Antoine Lavoisier: conservation of mass; 1785 – Charles-Augustin de Coulomb: Coulomb's inverse-square law for electric charges confirmed [9]
This observation is called Richmann's law in the narrower sense and applies in principle to all substances of the same state of aggregation. [1] [9] According to this, the mixing temperature is the weighted arithmetic mean of the temperatures of the two initial components.
Here are some of the memorable images from that cloudless Tuesday morning. Sept. 11 attacks: These iconic images from 9/11 are truly unforgettable September 11 Terrorist Attacks in photos
Crucially, experimental and theoretical results must be reproduced by others within the scientific community. Researchers have given their lives for this vision; Georg Wilhelm Richmann was killed by ball lightning (1753) when attempting to replicate the 1752 kite-flying experiment of Benjamin Franklin. [101]