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looks at inventors and inventions that changed our lives: the telegraph, photophone, animation, sewing machine, ice cream cone, nuclear fission, flight, and others. It includes Thomas Edison's journals and failed inventions, and Alexander Graham Bell's notebook entry describing the first successful experiment with the telephone (March 10, 1876). George Westinghouse, James Smithson, Benjamin Banneker, and Samuel Morse are among others profiled. (Library of Congress)
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