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... Zanzibar.
Today is an important day for Ernst, the improved electric light is finally ready for commercial use.
In fact, the first person to invent the electric lamp was the British Humphrey David. He used two thousand batteries and two carbon rods to make an arc lamp, but this arc lamp was too bright, had serious heat, and was not It is durable and cannot be promoted on a large scale.
In 1854, Henry Goebel, a German who immigrated to the United States, invented the fir ...
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