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Artikel 104244-01


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104244-01  Ramsey, William und Frederick Soddy.
Gases Occluded by Radium Bromide. SS. 246. In: Nature, Vol. 68. (27 x 19 cm). XLVIII, 640 S. Mit zahlreichen Abbildungen. Moderner Halbleinwandband im Stil der Zeit.
London, Macmillan, 1903.
Erste Ausgabe. - "In June 1903 Soddy obtained twenty milligrams of radium bromide, which had been produced commercially by Giesel. The emanation from a solution preparation of radium bromide was collected in a spectrum tube, and after several days they observed the spectrum of helium. In 1902 Rutherford and Soddy, on the basis of their disintegration theory, suggested that the well-known excess of atmospheric and terrestrial helium might be connected with radioactivity. The experimental proof by Ramsay and Soddy that helium is produced directly from radium emanation was a strong confirmation of their disintegration theory" (DSB ). - Gut erhalten

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