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4 days ago · Antoine-Laurent de Lavoisier demonstrated with careful measurements that transmutation of water to earth was not possible, but that the sediment observed from boiling water came from the container. He burnt phosphorus and sulfur in air, and proved that the products weighed more than the original samples, with the mass gained being lost from the ...
4 days ago · However, for minds like Antoine Lavoisier’s, this worldview was undeniably outdated, rendering Georg Ernst Stahl’s (1659–1734) phlogiston theory completely irrelevant. Stahl’s theory proposed that combustible substances burned due to the presence of phlogiston – a flammable, invisible, and elusive substance that produced fire when ...
2 days ago · History of atomic theory. In philosophy. The basic idea that matter is made up of tiny indivisible particles is an old idea that appeared in many ancient cultures. The word atom is derived from the ancient Greek word atomos, [a] which means "uncuttable". This ancient idea was based in philosophical reasoning rather than scientific reasoning.
4 days ago · In 1772, Antoine Lavoisier showed that diamonds are a form of carbon; when he burned samples of charcoal and diamond and found that neither produced any water and that both released the same amount of carbon dioxide per gram.
5 days ago · The thermal conductivity of polyatomic molecules is accounted for by simply adding on a contribution for the energy carried by the internal molecular motions: where cint is the contribution of the internal motions to the heat capacity (per molecule) and is easily found by subtracting (3 k /2) from the total measured heat capacity.
- Edward A. Mason
4 days ago · Between 1843 and his retirement in 1850, Avogadro wrote four memoirs on atomic volumes and designated affinity numbers for the elements using atomic volumes according to a method “independent of all chemical considerations”—a claim that held little appeal for chemists.
2 days ago · Talk: The Atomic Human - understanding ourselves in the age of AI. 07 July 2024 13:15 - 13:45 The Royal Society Free Watch online. Add to calendar. This event is part of the Royal Society's Summer Science Exhibition 2024. What if machines could think like humans? Can AI truly understand us? Ever wondered how AI will shape our future?
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