Hippolyte Fizeau

Armand Hippolyte Louis Fizeau FRS FRSE MIF (French pronunciation: [aʁmɑ̃ ipɔlit lwi 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.

Hippolyte Fizeau
Hippolyte Fizeau in 1883 by Eugène Pirou
Born	23 September 1819 Paris, France
Died	18 September 1896 (aged 76) Venteuil, France
Nationality	French
Known for	Fizeau experiment Fizeau interferometer Fizeau wheel Fizeau's measurement of the speed of light in air Doppler–Fizeau effect Astronomical interferometry Capacitor Optical dilatometer Redshift
Awards	Rumford Medal (1866) FRS (1875)
Scientific career
Fields	Physics

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