Arc Lamp
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“The arc lamp is essentially a device for automatically separating the carbons when the current is turned on, for ‘feeding’ the carbons together as they are burned away at their tips, and, in some cases, for short-circuiting the lamp in case of irregularity or accident.” -Avery 1895
Source
Elroy M. Avery School Physics (New York: Sheldon and Company, 1895) 549
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