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People/Characters: Joseph Henry

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Works (8)

The Affair: The Case of Alfred Dreyfus by Jean-Denis Bredin
Charles Babbage: And the Engines of Perfection (Oxford Portraits in Science) by Bruce Collier
History of the United States Capitol : a chronicle of design, construction, and politics by William C. Allen
How Did We Find Out About Electricity? by Isaac Asimov
Mr. Lincoln's T-mails by Tom Wheeler
Murder in the Lincoln White House by C. M. Gleason1st Secretary of Smithsonian
An Officer and a Spy by Robert Harris
Wonderful Life: The Burgess Shale and the Nature of History by Stephen Jay Gould

Character description

1.) Joseph Henry (December 17, 1797 – May 13, 1878) was an American scientist who served as the first Secretary of the Smithsonian Institution. 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, 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.

Joseph Henry in Wikipedia

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