Which Happened First?

Léon Foucault

Léon Foucault
Image: Bertall & Cie. Fizped · Public domain · source

Jean Bernard Léon Foucault was a French physicist who invented the Foucault pendulum, a device demonstrating the effect of Earth's rotation. He also made an early measurement of the speed of light, discovered eddy currents, and is credited with naming the gyroscope.

Summary from Wikipedia (CC BY-SA 4.0) · Dates from Wikidata (CC0)

Who was born first?

Timeline

  1. Annibale de GasparisNovember 9, 1819 – March 21, 1892
  2. Hippolyte FizeauSeptember 23, 1819 – September 18, 1896
  3. John Couch AdamsJune 5, 1819 – January 21, 1892
  4. Léon Foucault (this page)September 18, 1819 – February 11, 1868
  5. Otto Wilhelm von StruveMay 7, 1819 – April 14, 1905
  6. Sir George Stokes, 1st BaronetAugust 13, 1819 – February 1, 1903

Related

Play a round with Science · 19th century
Léon Foucault (September 18, 1819 – February 11, 1868) · Which Happened First?