USA HISTORY

Detailed explanation-1: -Engineer Nicolaus August Otto invented the first practical alternative to the steam engine. Born in Holzhausen, Germany, Otto built his first gas engine in 1861.

Detailed explanation-2: -Nikolaus Otto is generally credited with building the first four-stroke internal combustion engine in 1876. In doing so, he established the principle still in use today. The Otto cycle engine employs a spark to ignite a mixture of air and, traditionally, gasoline2 compressed by the piston within the engine cylinder.

Detailed explanation-3: -Application. The Otto Cycle provides the energy for most transportation and was essential for the modern world. Specifically, the vast majority of automobiles seen on the road today use the Otto Cycle to convert gasoline into motion.