Amagat, Émile

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Amagat, Émile Gender: M
Émile Hilaire Amagat
born on 2 January 1841 at 12:00 (= 12:00 noon )
Place Saint-Satur, France, 47n2031, 2e5115
Timezone LMT m2e5115 (is local mean time)
Data source
Quoted BC/BR
Rodden Rating AA
Collector: Gauquelin
Astrology data s_su.18.gif s_capcol.18.gif 12°00' s_mo.18.gif s_taucol.18.gif 01°13 Asc.s_aricol.18.gif 23°58'

Émile Amagat
photo: Bwoeng, license cc-by-sa-4.0


French physicist whose doctoral thesis, published in 1872, expanded on the work of Thomas Andrews, and included plots of the isotherms of carbon dioxide at high pressures. 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. He continued to publish data on isotherms for a number of different gases between 1879 and 1882, and invented the hydraulic manometer, which was able to withstand up to 3200 atmospheres, as opposed to 400 atmospheres using a glass apparatus. In 1880 he published his Law of Partial Volumes.

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

He died on 15 February 1915, aged 74, in Saint-Satur. The French Academy of Sciences gave him the posthumous award of the Prix Jean Reynaud for 1915.

Link to Wikipedia biography


Source Notes

GraZia Bordoni's Science file quotes Gauquelin.


  • Vocation : Science : Physics
  • Notable : Famous : Founder/ originator (Hydraulic manometer)