Nature's Miracles Volume 3: Electricity and Magnetism by GRAY, Elisha

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Elisha Gray (August 2, 1835 โ€“ January 21, 1901) was an American electrical engineer who co-founded the Western Electric Manufacturing Company. Gray is best known for his development of a telephone prototype in 1876 in Highland Park, Illinois and is considered by some writers to be the true inventor of the variable resistance telephone, despite losing out to Alexander Graham Bell for the telephone patent. Nature's Miracles: Familiar Talks on Science, published in 1900, is a discussion of science and technology for the general public. (Summary from Wikipedia)

  • 2 minutes 4 seconds
    Introduction
  • 13 minutes 58 seconds
    Chapter XVI. How the Telephone Talks
  • 9 minutes 8 seconds
    Chapter XXVIII. Electrical Products -- Calcium Carbide
  • 6 minutes 40 seconds
    Chapter XXVII. Electrical Products -- Aluminum
  • 6 minutes 25 seconds
    Chapter XXVI. Electrical Products -- Bleaching-Powder
  • 13 minutes 19 seconds
    Chapter XXV. Electrical Products -- Carborundum
  • 14 minutes 11 seconds
    Chapter XXIV. Niagara Falls Power -- Appliances
  • 13 minutes 10 seconds
    Chapter XXIII. Niagara Falls Power -- Appliances
  • 5 minutes 50 seconds
    Chapter XXII. Niagara Falls Power -- Introduction
  • 15 minutes 1 second
    Chapter XXI. Wireless Telegraphy
  • 7 minutes 49 seconds
    Chapter XX. Some Curiosities
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