![]() It only glows, and hence is derived the name “incandescent” light. Oxygen helps to burn the carbon filament fast, but in the oxygen-free bulb, the filament will not burn. He experimented with thousands of filaments, and in 1879 produced a first commercial incandescent lamp with a very high-resistance filament to increase the life of the light. Thomas Alva Edison started working on the light bulb. ![]() ![]() In 1860, Sir Joseph Swan developed an incandescent light using carbon filament, but it also burnt up quickly due to high electric current. In 1800, an English scientist named Sir Humphry Davy made the first electric light using batteries (his self-invention) and a piece of carbon, but his light bulb had a very short life. Long before the light bulbs were invented, lamps (lanterns) with animal fat, wax, and vegetable oil were used to illuminate homes and surroundings. How does a light bulb work? When was the light bulb invented?
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