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Émile Amagat

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Émile Hilaire Amagat
Born(1841-01-02)2 January 1841
Saint-Satur, France
Died15 February 1915(1915-02-15) (aged 74)
Saint-Satur, France
NationalityFrench
Known forAmagat's law, Hydraulic Manometer
Scientific career
FieldsPhysics, Thermodynamics

Émile Hilaire Amagat (2 January 1841 – 15 February 1915) was a French physicist.[1] His doctoral thesis, published in 1872, expanded on the work of Thomas Andrews, and included plots of the isotherms of carbon dioxide at high pressures.[2] Amagat published a paper in 1877 that contradicted the current understanding at the time, concluding that the coefficient of compressibility of fluids decreased with increasing pressure.[2] He continued to publish data on isotherms for a number of different gases between 1879 and 1882,[2] and invented the hydraulic manometer, which was able to withstand up to 3200 atmospheres, as opposed to 400 atmospheres using a glass apparatus.[3] In 1880 he published his Law of Partial Volumes.

Amagat was elected a member of the French Academy of Sciences on 9 June 1902.[4] A unit of number density, amagat, was named after him.

The French Academy of Sciences gave him the posthumous award of the Prix Jean Reynaud for 1915.[5]

References

  1. ^ larousse.fr Émile Amagat
  2. ^ a b c Daintith, John (1981). "Amagat, Emile Hilaire". Biographical Encyclopedia of Scientists. Vol. 1. New York: Facts On File, Inc. p. 15. ISBN 0-87196-396-5.
  3. ^ Bridgman, P. W. (1909). "An absolute gauge for measuring high hydrostatic pressures". Physical Review (Series I). 28 (2). American Physical Society: 145. Bibcode:1909PhRvI..28..140.. doi:10.1103/PhysRevSeriesI.28.140.
  4. ^ Payen, Jacques (1970). "Amagat, Émile". Dictionary of Scientific Biography. Vol. 1. New York: Charles Scribner's Sons. pp. 128–129. ISBN 0-684-10114-9..
  5. ^ "Séance du 18 décembre". Le Moniteur scientifique du Doctor Quesneville: 67–69. February 1916.
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