![]() They eventually sold their patent to Edison in 1879. Woodward and Evans attempted to commercialize their lamp, but were unsuccessful. They built their lamps with different sizes and shapes of carbon In 1878, Swan developed a longer lasting light bulb using a treated cotton thread that also removed the problem ![]() However, in the 1870’s better vacuum pumps became available and Swan continued experiments on lightīulbs. And by 1860 he had a working prototype, but the lack of a good vacuum andĪn adequate supply of electricity resulted in a bulb whose lifetime was much too short to be considered an effective In 1850 an English physicist named Joseph Wilson Swan created a “light bulb” by enclosing carbonized paperįilaments in an evacuated glass bulb. ![]() Of the platinum made it impractical for commercial production. Point of platinum would allow it to operate at high temperatures and that the evacuated chamber would containįewer gas molecules to react with the platinum, improving its longevity. The design was based on the concept that the high melting Vacuum tube and passed an electric current through it. More notably, in 1840, British scientist Warren de la Rue enclosed a coiled platinum filament in a Over the next seven decades, other inventors also created “light bulbs” but no designs emerged for commericalĪpplication. Long and was much too bright for practical use. And while it produced light, it didn’t produce it for His invention was known as the Electric Arc lamp. When he connected wires to his battery and a piece of carbon, the carbon glowed, producing ![]() He experimented with electricity and invented anĮlectric battery. In 1802, Humphry Davy invented the first electric light. Is often credited with the invention because his version was able to outstrip the earlier versions because of aĬombination of three factors: an effective incandescent material, a higher vacuum than others were able to achieveĪnd a high resistance that made power distribution from a centralized source economically viable. Historians claim there were over 20 inventors of incandescent lamps prior to Edison’s version. He was neither the first nor the only person trying to invent an incandescent light bulb. Traditional sense in 1879 by Thomas Alva Edison, although he could be said to have created the first commercially practical incandescent The electric light, one of the everyday conveniences that most affects our lives, was not “invented” in the ![]()
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