Hedy Lamarr

The Woman Who Made Wifi

Hedy Lamarr was an Austrian-born American actress, inventor, and film producer. She appeared in 30 films over a 28-year career in Europe and the United States, and co-invented an early version of frequency-hopping spread spectrum communication, originally intended for torpedo guidance.

Valerie Thomas

The Woman Who Invented 3D Movies

Valerie Thomas is an American scientist and inventor who patented the illusion transmitter in 1980. After seeing an illusion that involved concave mirrors and light bulbs in a museum, she became curious about how she might apply concave mirrors in her work at NASA. Her invention, the illusion transmitter grew out of her experimentation with concave mirrors. You could call it early 3D technology. Her invention transmits an optical illusion of a 3D image between concave mirrors that looks real on the receiving end.