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Tuesday, 29 May 2007

Day 84

Mendeleev, D.I. (1834—1907)

One can regard the law of conservation of weight as a special case of the law of conservation of force or of movement. Surely weight depends on a special kind of movement of matter, and there is no reason to deny the possibility of a transmutation of these movements into chemical energy or some other form of movement during the formation of elementary atoms. ... Thus in case a known element would be decomposed or a new one would be formed, these phenomena could well be accompanied by a decrease or increase in weight.

Die periodische Gesetzmässigkeit der chemischen Elemente (1869) Ostwalds Klassiker der exakten Wissenschaften No. 68 translated by Y. Elkana and cited by S. Sambursky in Physical Thought from the Presocratics to the Quantum Physicists (Hutchinson, London, 1974) p. 451.

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