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An arc lamp or arc light is a lamp that produces light by an electric arc (also called a voltaic arc). The carbon arc light, which consists of an arc between carbon electrodes in air, invented by Humphry Davy in the first decade of the 1800s, was the first practical electric light.
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Eine Kohlebogenlampe, kurz auch Bogenlampe genannt, ist eine elektrische Lichtquelle mit einem in Luft brennenden Lichtbogen zwischen zwei Elektroden aus Graphit. Es war die erste elektrische Lampe, die über längere Zeiträume helles Licht abgeben konnte, und somit die erste in Serie produzierte elektrische Lampe.
Arc lamp, device for producing light by maintaining an electric arc across a gap between two conductors; light comes from the heated ends of the conductors (usually carbon rods) as well as from the arc itself. Arc lamps are used in applications requiring great brightness, as in searchlights, large.
- The Editors of Encyclopaedia Britannica
23. Nov. 2017 · Electric “arc” lighting refers to the fact that an electric spark in the air between two conductors will produce a dazzlingly bright light. Many early experimenters noted this phenomenon, and Sir Humphrey Davy made a famous demonstration of it in 1809.
Shortly after Murdoch’s important advance, British chemist Sir Humphry Davy discovered something that would lead to yet another type of lighting — the arc lamp. While working with a large battery, Davy noticed that light leaped across a small gap in the circuit he had built, forming a bright arc.
