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carbon arc lamp

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carbon arc lamp,
an electric lamp producing a strong white light of adjustable intensity from an arc of current between carbon electrodes.


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In 1801, Sir Humphrey Davy of England invented the electric carbon arc lamp, which was the first of its kind.
Recognising the need for a reliable method of welding new steel wire, he created a prototype Watkin Welder from a carbon arc lamp, two brass rods, a transformer and a Bowden brake cable.
Children were exposed to mercury vapour lamps and carbon arc lamps, which emitted intense doses of UV radiation, as close as 36 inches from their bodies, for up to an hour several times a week.
 
 
 
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