Edison made forty wartime inventions
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Answer:
Thomas Edison, seen late in life in this video, was the most famous inventor in American history. Though he is best known for his invention of the phonograph and incandescent electric light, Edison took out 1,093 patents in a variety of fields, including electric light and power, telephony and telegraphy, and sound recording. His public image as a homespun, untutored genius actually concealed a thinker who was quite systematic and methodical and who collaborated closely with machinists, designers, and scientists in his laboratory at Menlo Park, N.J.
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Explanation:
Thomas Edison, in full Thomas Alva Edison, (born February 11, 1847, Milan, Ohio, U.S.—died October 18, 1931, West Orange, New Jersey), American inventor who, singly or jointly, held a world record 1,093 patents. In addition, he created the world’s first industrial research laboratory.