Nikolaus Otto

Nikolaus Otto invented the first internal combustion engine to efficiently burn fuel directly in a piston chamber, known as the four-stroke cycle or the 'Otto cycle.' This engine design is the basis for almost all modern gasoline-powered vehicles. By providing a compact, reliable power source, he enabled the development of the automobile, the airplane, and modern agricultural machinery. His invention replaced steam power in many applications, leading to a massive increase in mobility and industrial productivity. The Otto cycle remains the standard for internal combustion engines today.