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). His work on the electromagnetic relay was the basis of the practical electrical telegraph, invented separately by Samuel F. B. Morse and Sir Charles Wheatstone. In his honor, the SI unit of inductance is named the henry (plural: henries; symbol: H).
주요 사실
- Born: December 17, 1797 in Albany, New York, U.S.
- 사망: 1878
- 분야: Science
유산과 영향
The influence of Joseph Henry extends far beyond his own lifetime. He fundamentally shaped our understanding of the natural world, and his discoveries and theories remain foundational to this day.
Though he passed away in 1878, his ideas continue to be studied, debated, and built upon by scholars and practitioners worldwide.
Joseph Henry은(는) United States이(가) 배출한 가장 칭송받는 인재 중 한 명으로 남아 있으며, 그 지역의 풍부한 지적 유산을 보여준다.
United States의 저명한 천재들
United States은(는) 많은 뛰어난 인재를 배출했다. Joseph Henry와(과) 더불어:
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