This is a video recording of Francis Jehl discussing his experience working with Thomas Edison in 1879 and helping to make the first practically viable light bulb in history.

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 ...

At Menlo Park Edison led a comprehensive survey of filament materials, selecting carbonized bamboo for his first commercial electric light bulb. Adapted for the internet from “Thomas Edison, Chemist” ...

Southern California Edison and its predecessor companies have been powering the lives of Angelenos going back to late 1880s, ...

twisted light can be produced using the same technology as the 100-year-old Edison bulb (filament light bulb) technology. “We gradually noticed that we actually have a very old way to generate ...