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1 янв 1908 г. - Hans Geiger

Описание:

Made a particle counter, which he eventually used to discover the alpha particle as a helium atom's nucleus.
(nbci.nlm.nih.gov)

Добавлено на ленту времени:

Chemistry Atomic Theory

14 окт 2021

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1 янв 1908 г.

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~ 117 г назад

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