This is the Edison clock, designed by [David Krawczyk ... You can see the series of holes on the front of the base. These have a small light bulb socked in each, and correspond to hours and ...

Thomas Edison's incandescent light bulb, patented in 1880, made electric lighting practical, affordable, and long-lasting. It ...

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 ...