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Who was Hippolyte Fizeau?
Who was Armand Hippolyte Louis Fizeau?
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Hippolyte Fizeau. Armand Hippolyte Louis Fizeau FRS FRSE MIF [clarification needed] ( 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.
Armand-Hippolyte-Louis Fizeau was a French physicist noted for his experimental determination of the speed of light. Fizeau worked with Jean-Bernard-Léon Foucault on investigations of the infrared portion of the solar spectrum and made other observations of heat and light.
- The Editors of Encyclopaedia Britannica
The Fizeau experiment was carried out by Hippolyte Fizeau in 1851 to measure the relative speeds of light in moving water. Fizeau used a special interferometer arrangement to measure the effect of movement of a medium upon the speed of light.
In 1848−49, Hippolyte Fizeau used a toothed wheel apparatus to perform an absolute measurement of the speed of light in air. Subsequent experiments performed by Marie Alfred Cornu in 1872–76 improved the methodology and made a more accurate measurement.
Hippolyte Fizeau was a French physicist, best known for measuring the speed of light. View two larger pictures. Biography. Hippolyte Fizeau was the eldest son of Béatrice and Louis Fizeau. His father Louis Fizeau, coming from a family many generations of which had been doctors, was Professor of Pathology at the Paris Medical School.
Armand Hippolyte Louis Fizeau, dit Hippolyte Fizeau, né à Paris le 23 septembre 1819 et mort au château de Venteuil, aux environs de La Ferté-sous-Jouarre [2], le 18 septembre 1896, est un physicien, astronome français qui travailla notamment sur la lumière.
Sep 23, 2020 · On September 23, 1819, French physicist Armand Hippolyte Louis Fizeau was born. He is well known for his calculation of the speed of light and his suggestion to use length of a light wave be used as a length standard. Hippolyte Fizeau – Early Years
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