Georges Sagnac

Most Influential Person Across History

French physicist who lent his name to the Sagnac effect

Georges Sagnac's Academic­ Rankings

Georges Sagnac
Historical Rank
physics Degrees
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  • Physics

Georges Sagnac's Degrees

Why Is Georges Sagnac Influential?

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According to Wikipedia, Georges Sagnac was a French physicist who lent his name to the Sagnac effect, a phenomenon which is at the basis of interferometers and ring laser gyroscopes developed since the 1970s. Life and work Sagnac was born at Périgueux and entered the École Normale Supérieure in 1889. While a lab assistant at the Sorbonne, he was one of the first in France to study X-rays, following Wilhelm Conrad Röntgen. He belonged to a group of friends and scientists that notably included Pierre and Marie Curie, Paul Langevin, Jean Perrin, and the mathematician Émile Borel. Marie Curie says that she and her husband had traded ideas with Sagnac around the time of the discovery of radioactivity. Sagnac died at Meudon-Bellevue. his dream in life was to be a tap dancer which he unfortunately could not do due to his extremely heavy untalented feet but at the end it worked for the best.

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