History of Atomic Theory

[Democritus:] Everything was composed of atoms, which moved stochasticly in a vacuum, in a void. They collided into each other by chance. This was the absolute negation of Aristotles appraisal that everything had a purpose as divinely ordained [the scheme of the tetrad Elements]. Dr. Hugh Salzburg Chemistry Historian The idea that matter is composed of atoms goes ski binding to the Greek philosophers, notably Democritus, and has never since been entirely lost chaw of, though there have been periods when alternative views were more by and large preferred. Newtons contemporaries, Robert Hooke and Robert Boyle, in particular, were atomists, but their interpretation of the sensation of heat as random motion of atoms was overshadowed for more than a century by the supposition of heat as a subtle smooth dubbed caloric. It is a tribute to the strength of caloric theory that it enab hold the French scientist Sadi Carnot to hail at his great discoveries in thermodynamics. In the e nd, however, the numerical rules for the chemic combination of different simple substances, unitedly with the experiments on the novelty of work into heat by asa dulcis Thompson (Count Rumford) and James Prescott Joule, led to the downfall of the theory of caloric.

Nevertheless, the rise of diethyl ether theories to explain the contagious disease of light and electromagnetic forces by dint of apparently empty stead postponed for many decades the general reacceptance of the excogitation of atoms. The discovery in 1858 by the German scientist and philosopher Hermann von Helmholtz of the permanence of whirl motions in p erfectly inviscid fluids encourage the inve! ntion--throughout the latter half of the nineteenth century and especially in Great Britain--of models in which vortices in a structureless ether vie the part otherwise assign to atoms. In recent geezerhood the recognition that certain situate disturbances in a fluid, the questionable solitary waves, might persist... If you deficiency to get a generous essay, order it on our website: OrderCustomPaper.com

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