Overview

Joseph Henry

(1797—1878)


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HENRY, Joseph - Painter

 

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Quick Reference

(1797–1878) US physicist,

who became professor of natural philosophy at Princeton in 1832. In 1829 he made an electric motor, and used insulated windings to produce a powerful electromagnet. A year later he discovered electromagnetic induction (independently of Faraday), and in 1832 he discovered self-induction (see inductance). In 1835 he invented the electric relay.

Subjects: Science and Mathematics — Arts and Humanities.


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