A light bulb is a device that produces light when powered by electricity. It's one of the most important inventions in history. Light bulbs help us see in the dark, work at night, and live more ...

There's nothing like coming home after a long day to the warm, glowing welcome of your front porch. Less enjoyable: being assaulted by the insects that are fluttering around the porch lights, just ...

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 ...