André-Marie Ampère

André-Marie Ampère (January 20 1775 – June 10 1836), was a French physicist who is generally credited as one of the main discoverers of electromagnetism. The ampere unit of measurement of electric current is named after him.

Contributions to physics and further studies

Jean Baptiste Joseph Delambre's recommendation obtained for him the Lyons appointment, and afterwards (1804) a subordinate position in the polytechnic school at Paris, where he was appointed professor of mathematics in 1809. Here he continued to prosecute his scientific researches and his multifarious studies with unabated diligence. He was admitted a member of the Institute in 1814.

Related Topics:
Jean Baptiste Joseph Delambre - 1804 - 1814

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It is on the service that he rendered to science in establishing the relations between electricity and magnetism, and in developing the science of electromagnetism, or, as he called it, electrodynamics, that Ampère's fame mainly rests. On September 11 1820 he heard of H. C. Ørsted's discovery that a magnetic needle is acted on by a voltaic current. On the September 18 (of the same month) he presented a paper to the Academy, containing a far more complete exposition of that and kindred phenomena.

Related Topics:
September 11 - 1820 - H. C. Ørsted's - September 18

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