Leonard Michael Greene

Born: 1918
Birthplace: New York City

Airplane stall warning device—Greene developed his airplane stall warning device at a time when more than half of all aviation deaths were called by the stall/spin. He also developed a wind shear warning device for pilots. (1991)

Play Poptropica Worlds

Download Poptropica and play for free!

Explore a limitless universe of uncharted islands
App store
Google Play
See also: