One of the most popular electrical appliances, which almost houses all over the world have, is light bulbs. Instead of using lamps, they effectively illuminate the night and they are more convenient. The first light bulb was invented in 1879 by Thomas Alva Edison. He was neither the first nor the only person trying to invent an incandescent light bulb. In 1809 Humphrey Davy, an English chemist, was the first scientist who started the journey to the invention of a practical incandescent light source. He used a high power battery to induce current between two charcoal strips. The current flowing through the two charcoal strips produced an intense incandescent light, creating the first arc lamp.
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