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Thomas Savery (1650-1715)
Thomas Savery was an English military engineer and inventor who in 1698, patented the first crude steam engine, based on Denis Papin's Digester or pressure cooker of 1679. -
The cotton gin is a machine designed to remove cotton from its seeds. The process uses a small screen and pulling hooks to force the cotton through the screen. It was invented by Eli Whitney on March 14, 1794, one of the many inventions that occurred during the American Industrial Revolution. However, earlier versions of the cotton gin had existed since the first century. It was improved over time from a single roller design to a double roller machine.
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Alessandro Volta, known for his pioneering work in electricity. By 1800 he had developed the so-called voltaic pile, a forerunner of the electric battery, which produced a steady stream of electricity. In recognition of his work in the field of electricity, the electrical unit known as the volt was named in his honor.
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This invention was one of the reasons that prairies are scattered and that we barely ever see them. But it also helped the farmers farm on the prairies.
