Armand hippolyte louis fizeau biography of william
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Fizeau, Armand-Hippolyte-Louis
(b. Paris France, 23 September 1819; d. Venteuil, near Jouarre, France, 18 September 1896)
experimental physics.
Fizeau was the eldest son of a large and relatively wealthy family that had come to Paris from the Vendeé. His father held the chair of internal pathology at the Paris Faculty of Medicine from 1823. Fizeau, aspiring to follow in his father’s footsteps, began medical studies at the Collegè Stanislas, but because of poor health he was obliged to interrupt his education in order to travel to a more agreeable climate. On returning to Paris, he gave up medicine and began an entirely new career in the physical sciences. At the Collége de France, he studied optics with H.-V. Regnault, and he followed the lectures given at the École Polytechnique through the notebooks compiled by one of his brothers. Fizeau’s most fruitful educational experience, however, was the course of study he took at the Paris observatory under the tutelage of the fa
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Armand-Hippolyte-Louis Fizeau
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Physicist, b. at Paris, 23 Sept., 1819; d. at Nanteuil, Seine-et-Marne, 18 Sept., 1896. His father, a distinguished physician and professor of medicine in Paris during the Restoration, left him an independent fortune, so that he was able to devote himself to scientific research. He attended Stanislas College and then began to study medicine, but had to abandon it on account of ill-health and travelled for awhile. Then followed Arago's lessons at the Observatory, Regnault on optics at the college of France, and a thorough study of his brother's notebooks of the courses at the Ecole Polytechnique. In 1839 he became interested in the new photography and succeeded in getting permanent pictures by the daguerreotype. Foucault came to consult
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Hippolyte Fizeau
French physicist
Armand Hippolyte Louis Fizeau (French:[ipɔlitfizo]; 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 vatten in an experiment known as the Fizeau experiment.
Biography
[edit]Fizeau was born in Paris to Louis and Beatrice Fizeau.[1] He married into the de Jussieu botanical family. His earliest work was concerned with improvements in photographic processes.[2] Following suggestions by François Arago, Léon Foucault and Fizeau collaborated in a series of investigations on the interference of light and heat.[3] In 1848, he predicted the redshifting of electromagnetic waves.[4]
In 1849, Fizeau calculated a value for the speed of light to a better precision than the previous value determined by Ole Rømer in 1676. He used a beam of light reflected from a mirror 8633 met