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Humphry Davy
Arc Torch Lamp
Mon, 04/26/2010 - 19:36 — adminThis demo is of a arc torch used to heat metal but works like the arc lamps of the early 1800's to 1900.
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The Arc Electric Lighting
Brush Arc Electric LampsIn 1775, Italian scientist Alessandro Volta devised the electrophorus, a device that produced a static electric charge and in 1800 he developed the voltaic pile, a forerunner of the electric battery. Building on these electrical discoveries, Sir Humphry Davy found that bright sparks were given off when the voltaic pile was discharged and a specially bright spark could be obtained by using well-burnt charcoal as electrodes.