140 years after its invention, the Edison light bulb is having another moment. Now Edison-style bulbs are the center of a new lawsuit. 140 years after its invention, the Edison light bulb is having ...

Early carbon light bulbs may have produced graphene, since applying voltage to carbon filaments mirrors what is now called flash Joule heating. Graphene is a transparent, remarkably strong substance, ...

Electric light bulbs had been around for decades by the 1870s. Most demonstration systems used arc lamps, which seemed far too bright and burned much too hot for indoor household use. In 1878, Thomas ...

Edison Light Bulb, 1879, Smithsonian's National Museum of American History Thomas Edison used this carbon-filament bulb in the first public demonstration of his most famous invention—the light bulb, ...