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By: Juan Alvarez and Mariano Crivello
Gasoline engines used to be as inefficient as steam engines. George Brayton, an American engineer, had developed a two-stroke kerosene engine in 1873, but it was too large and too slow to be commercially successful.The first successful two-stroke engine was completed in 1878 by Sir Dougald Clerk, which remains in use today. This two-stoke engine was simplified by Joseph Day in 1891. Internal combustion engines are now used for car, planes, lawn mowers, etc.
The combustion engines let people transport in an entirely new fashion. What thought to be impossible, flying through the sky, now became possible; or ridding a bicycle with a motor.
The first person to experiment with an internal-combustion engine was the Dutch physicist, Christian Huygens, in about 1680. No effective gasoline-powered engine was developed until 1859, when the French engineer J. J. Lenoir built a double-acting, spark-ignition engine that could be operated continuously. Gasoline was first discovered in 1856 which revolutionized the way people used transportation. In 1862, French scientist, Alphonse Beau de Rochas, patented but did not build a four-stroke engine; sixteen years later(1878), Nikolaus A. Otto built a successful four-stroke engine, which became known as the "Otto cycle."