Incandescent light bulbs emit light by the heating of the filament inside the bulb. First developed by Humphrey Davy in 1802, the earliest incandescent bulbs were made from two charcoal strips with a high power battery used to pass current trough it. The flowing current lead to the production of an intense incandescent light that became the first component of the arc lamp. Future improvement was done by Warren De La Rue in 1820 utilizing the platinum coil inside an evacuated tube. This design was motivated by the high melting point of platinum that would give the lamp a better operation ...
Essays on Sublimation
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