On Thursday, presidential candidate Joe Biden claimed that a Black man had invented the light bulb, not “a White guy named Edison.” Biden was at a community meeting in Kenosha, Wisconsin ...

"A Black man invented the light bulb, not a white guy named Edison ... prompting a pivot to an incandescent solution. Among the key early developments, according to Britannica and other sources ...

Astronomers have a few tricks to help them do this, including using light bulbs and distant stars. Now one astronomer has a simple calibration solution ... the light bulb black or by performing ...