Hippolyte Fizeau

Hippolyte Fizeau ForMemRS
Photograph of Fizeau by Eugène Pirou, 1883
Born	Armand Hippolyte Louis Fizeau (1819-09-23)23 September 1819 Paris, Kingdom of France
Died	18 September 1896(1896-09-18) (aged 76) Venteuil, French Third Republic
Known for	Fizeau experiment Fizeau interferometer Fizeau's measurement of the speed of light in air Doppler–Fizeau effect Induction coil Optical dilatometer Redshift
Awards	Rumford Medal (1866) ForMemRS (1875)
Scientific career
Fields	Physics

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Armand Hippolyte Louis Fizeau (French: [ipɔlit fizo]; 23 September 1819 – 18 September 1896) was a French physicist who, in 1849, measured the speed of light to within 5% accuracy. In 1851, he measured the speed of light in moving water in an experiment known as the Fizeau experiment.