New experiments on electricity, wherein the causes of thunder and lightning as well as the constant state of positive or negative electricity in the air or clouds, are explained ... Also a description of a doubler of electricity, and of the most sensible electrometer yet constructed. With other new experiments and discoveries in the science .. (1789)
Bennet, A. (Abraham), 1750-1799 · Derby [Eng.] Printed by J. Drewry · leaf 100
gant and ufeful inftrument,which Is much the beft mode of conftrufting mydoubler hitherto attempted. This doubler confifts of two infulated and im-moveable plates about two inches in diameter, anda moveable plate alfo infulated which revolves in avertical plane parallel to the two immoveable… … eN ELECTRICITY. 83 connecfling wires at the end of the crofs piece Dmuft touch the pins of A and C at E F, anda wire proceeding from the plate B muft touchthe middle piece G, which is fupported by a brafs,wooden, or other condu(5ling pillar in connedionwith the earth. In this pofition if…
Electricity
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