Nicolaus August Otto

Born: 1832
Birthplace: Holzhausen, Germany

Gas motor engine—Otto introduced the four-stroke piston cycle on which most modern internal combustion engines are based. (1981)

Died: 1891
Play Poptropica Worlds

Download Poptropica and play for free!

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