And in 1903, Willis R. Whitney invented a treatment for these filaments that allowed them to burn bright without darkening the insides of their glass bulbs, according to the Smithsonian Institution.

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This first commercial installation, a spectacular achievement, featured no bulbs manufactured by Thomas Edison, although he had proudly announced his invention of the light bulb only a few months ...

Around 20 different early versions of lightbulbs were developed before Edison patented his invention in 1879 ... fluorescent lamps than incandescent bulbs. Twenty-five years later, after already ...

These bulbs lasted longer ... 1962: First light-emitting diode (LED) is invented While working for General Electric, Nick Holonyak Jr., invented the first visible-spectrum LED in the form of ...

You might have learned in school that Thomas Edison invented the light bulb, but the truth is much stranger (public domain) It has been known for a long time that passing a current through a wire ...