![Jean Bernard Leon Foucault (1819-1860) French physicist. Measured velocity of light: Proved rotation of Earth on its axis with Foucault's pendulum, 1851. Invented Gyroscope (1857): Improved the reflecting telescope. Wood engraving Stock Photo - Alamy Jean Bernard Leon Foucault (1819-1860) French physicist. Measured velocity of light: Proved rotation of Earth on its axis with Foucault's pendulum, 1851. Invented Gyroscope (1857): Improved the reflecting telescope. Wood engraving Stock Photo - Alamy](https://c8.alamy.com/comp/TXGW68/jean-bernard-leon-foucault-1819-1860-french-physicist-measured-velocity-of-light-proved-rotation-of-earth-on-its-axis-with-foucaults-pendulum-1851-invented-gyroscope-1857-improved-the-reflecting-telescope-wood-engraving-TXGW68.jpg)
Jean Bernard Leon Foucault (1819-1860) French physicist. Measured velocity of light: Proved rotation of Earth on its axis with Foucault's pendulum, 1851. Invented Gyroscope (1857): Improved the reflecting telescope. Wood engraving Stock Photo - Alamy
![The grave of physicist Jean Bernard Leon Foucault in Montmartre Cemetery in Paris in France in Europe Stock Photo - Alamy The grave of physicist Jean Bernard Leon Foucault in Montmartre Cemetery in Paris in France in Europe Stock Photo - Alamy](https://c8.alamy.com/comp/AHYB17/the-grave-of-physicist-jean-bernard-leon-foucault-in-montmartre-cemetery-AHYB17.jpg)
The grave of physicist Jean Bernard Leon Foucault in Montmartre Cemetery in Paris in France in Europe Stock Photo - Alamy
![Jean Bernard Leon Foucault Vector Sketch Portrait Isolated Editorial Photo - Illustration of french, famous: 189407936 Jean Bernard Leon Foucault Vector Sketch Portrait Isolated Editorial Photo - Illustration of french, famous: 189407936](https://thumbs.dreamstime.com/z/jean-bernard-leon-foucault-vector-sketch-portrait-isolated-189407936.jpg)
Jean Bernard Leon Foucault Vector Sketch Portrait Isolated Editorial Photo - Illustration of french, famous: 189407936
![Léon Foucault — Science Communicator | by William Nuttle | Eiffel's Paris — an Engineer's Guide | Medium Léon Foucault — Science Communicator | by William Nuttle | Eiffel's Paris — an Engineer's Guide | Medium](https://miro.medium.com/v2/resize:fit:469/0*1RthX9dE8PW8IdOH.jpg)