John Logie Baird
Which French scientist invented the first satisfactory revolving light for use in lighthouses, and has a type of theatre light named after him?
In February 1841, English polymath, inventor, politician and scientist William Henry Fox Talbot patented a process which was seminal in the development of what?
This African-American woman physical therapist worked with soldiers disabled in World War II. She invented a device that helped the disabled to eat by delivering food through a tube to a mouthpiece.