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18 окт 1900 г. - soddy

Описание:

Observed spontaneous disintegration of radioactive elements into variants he called "isotopes" or totally new elements, discovered "half-life", made initial calculations on energy released during decay.

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scientific atom timeline

ByKyrell Brown
11 дек 2018
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18 окт 1900 г.
Сейчас
~ 125 г назад
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