France
André-Marie Ampère
saidundated
Either one or the other [ analysis or synthesis ] may be direct or indirect.
— André-Marie Ampè, in André-Marie Ampère: Enlightenment and Electrodynamics, Cambridge University Press, 1996, p. 159
André-Marie Ampère
French physicist and mathematician (1775–1836)
- Fame74.5
- Momentum15.0
- France rank#134
Source-basedFalling
- Fame74.5
- Momentum15.0
- France rank#134
- Scientists rank#46
- Wikipedia16.7K
Lived 1775–1836, aged 61France
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Summary
Updated 2026-06-21
His name is the unit: every amp of current flowing through every circuit everywhere carries it. He built the mathematics that made electricity predictable, coined "electrodynamics," and turned invisible force into engineering.
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Born 20 January 1775, Ampère taught himself mathematics and physics without formal schooling. After witnessing Hans Christian Ørsted's 1820 demonstration that electric current deflects a compass needle, he spent months working out the mathematical laws governing the relationship between electricity and magnetism—the foundation of classical electromagnetism. He invented the solenoid, named it, and contributed to early electrical telegraphy. The French Academy of Sciences made him a member; he taught at the École polytechnique and the Collège de France. He also coined "cinématique" (kinematic in…
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André-Marie Ampère
saidundated
There is synthesis when, in combining therein judgments that are made known to us from simpler relations, one deduces judgments from them relative to more complicated relations.
— André-Marie Ampère in: André-Marie Ampère: Enlightenment and Electrodynamics, Cambridge University Press, 1996, p. 158.
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Falling74.5
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Momentum15.0
Historical24.6
Now attention2.4
Source confidence60.0
Completeness70.0
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