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. Then, in partnership with German industrialist Eugen Langen, they improved the design and won a gold medal at the Paris Exposition of 1867.

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 uses a spark to ignite a mixture of air and – traditionally – gasoline2 compressed by the piston within the engine cylinder.

Detailed explanation-3: -Nikolaus Otto, in full Nikolaus August Otto, (born June 10, 1832, Holzhausen, Nassau, Germany-died January 26, 1891, Cologne), German engineer who developed the four-stroke internal-combustion engine, which offered the first practical alternative to the steam engine as a power source.