Henry, Joseph

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Henry, Joseph Gender: M
born on 17 December 1797
Place Albany, New York, 42n39, 73w45
Timezone LMT m73w45 (is local mean time)
Data source
Date w/o time
Rodden Rating X
Collector: Starkman
Astrology data s_su.18.gif s_sagcol.18.gif 26°21' s_mo.18.gif s_sagcol.18.gif

Joseph Henry


American scientist who served as the first Secretary of the Smithsonian Institution, Joseph was an American scientist who invented electromagnets. He was the secretary for the National Institute for the Promotion of Science, a precursor of the Smithsonian Institution. He was highly regarded during his lifetime. While building electromagnets, Henry discovered the electromagnetic phenomenon of self-inductance. He also discovered mutual inductance independently of Michael Faraday, (1791-1867), though Faraday was the first to make the discovery and publish his results. Henry developed the electromagnet into a practical device. He invented a precursor to the electric doorbell (specifically a bell that could be rung at a distance via an electric wire, 1831) and electric relay (1835). The SI unit of inductance, the henry, is named in his honor. Henry's work on the electromagnetic relay was the basis of the practical electrical telegraph, invented by Samuel F. B. Morse and Sir Charles Wheatstone, separately.

He died 13 May 1878.

Link to Wikipedia biography

Source Notes

Birth time unknown. Starkman rectified to 9.57.00 LMT Asc 5Aqu05'


  • Vocation : Science : Physics
  • Notable : Famous : Founder/ originator