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the oldest dated wheel http://www.ancient-origins.net/ancient-technology/revolutionary-invention-wheel-001713
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its is a two wheeled chariot that is pulled by horses http://www.historyworld.net/wrldhis/plaintexthistories.asp?historyid=ab79
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It was the public form of transpertation http://www.historyworld.net/wrldhis/plaintexthistories.asp?historyid=ab79
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A steam engine is a machine that converts the heat energy of steam into mechanical energy. A steam engine passes its steam into a cylinder, where it then pushes a piston back and forth. It is with this piston movement that the engine can do mechanical work. http://www.encyclopedia.com/science-and-technology/technology/technology-terms-and-concepts/steam-engine
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George Brayton developed a two-stroke kerosene engine,considered to be safe. https://www.google.com/search?q=first+gasoline+engine&biw=1760&bih=841&source=lnms&sa=X&ved=0ahUKEwju6JiAk_zPAhUY02MKHR-fDz0Q_AUIBygA&dpr=1.09
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The first stationary gasoline car developed
https://www.google.com/search?q=first+engine&ie=utf-8&oe=utf-8#q=first+car -
They were popular and luxurious in 1908 and had 22 hoarse power.
http://www.history.com/this-day-in-history/ford-motor-company-unveils-the-model-t