Who invented the light bulb?

Question

Who invented the light bulb?

Answer 1

In 1809 Sir Humphry Davy created what would become known as the Arc lamp. He made an electrical connection between two charcoal rods connected to a battery. The light from this was very bright but small.

In 1840 Warren de la Rue, a British scientist, placed a platinum coil in a vaccum tube. When he passed an electric current through it, light was formed. This design was efficient and the light lasted longer, but platinum was very expensive which made it impossible to be distributed on a commercial level.

In 1841 Frederick de Moleyns of England was given the first patent for an incandescent lamp. His design used powdered charcoal. He heated this material between two platinum wires in a vacuum bulb.

edison only developed an affordable light bulb

Answer 2

Thomas Edison

Answer 3

Edison.

Answer 4

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