Results for "History"

1. 

   Joseph Henry Electromagnet

   • Date: c. 1978

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   Electromagnet Made by Joseph Henry

   • Date: 1978
   • Creator: Unknown
   • Creator: Unknown

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5. 

   Thomas Alva Edison

   • Date: c. 1920s
   • Creator: Unknown,Avino, Mark
   • Creator: Unknown,Avino, Mark

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7. 

   Regents Dismiss Samuel Morse's Accusations Regarding Joseph Henry

   • Date: May 19, 1858

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9. 

   Joseph Henry Advises Samuel Morse on Telegraph

   • Date: February 24, 1842

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11. 

    Joseph Henry Advises Alexander Graham Bell on Development of Telephone

    • Date: March - April 1875

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13. 

    Thomas Edison Demonstrates Telephone and Phonograph to National Academy of Sciences

    • Date: April 1878

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15. 

    Morse Claims Henry's Work in Electromagnetism Did Not Contribute to Invention of Telegraph

    • Date: July 19, 1854

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17. 

    Powel Crosley, Jr. (1886-1961)

    • Date: 1946

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19. 

    Powel Crosley, Jr. (1886-1961)

    • Date: 1933

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21. 

    Alexander Graham Bell Demonstrates Telephone for Joseph Henry's Family

    • Date: January 13, 1877

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23. 

    Joseph Henry Constructs Large Electromagnet for Yale College Professor Benjamin Silliman

    • Date: January 15, 1831

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