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who is the first (inventor) of light and what is the speed of light nuectrons from crore of the sun to boundary of the sun
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In the period from 1878 to 1880 Edison and his associates worked on at least three thousand different theories to develop an efficient incandescent lamp. Incandescent lamps make light by using electricity to heat a thin strip of material (called a filament) until it gets hot enough to glow.
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