"Stephen Hales... had distilled many substances of vegetable, animal, and mineral origin ; among them he treated many which must have produced impure hydrogen, marsh-gas, carbonic-acid gas, and oxygen; but Hales contented himself with measuring the volume of gases obtained from a known weight of material, without concerning himself as to their properties. And, as the result of many experiments, he concluded that "our atmosphere is a chaos, consisting not only of elastick, but also of unelastick air-particles, which in plenty float in it, as well as the sulphureous, saline, watry, and earthy particles, which are no ways capable of being thrown off into a permanently elastick state, like those particles which constitute true permanent air." This was the current belief as regards the nature of air."
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People from BordeauxPhysicists from ScotlandUniversity of Edinburgh alumniChemists from ScotlandUniversity of Edinburgh faculty
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Joseph Black
Joseph Black (16 April 1728 – 6 December 1799) was a Scottish physician and chemist, known for his discoveries of latent heat, specific heat, and .
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