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7 ore 25 min, 2 gen 1919 anni - Francis Aston pioneers the mass spectrometer and uses it to discover many isotopes
Aggiunto al nastro di tempo:
20th Century
By
Rafelle Marie Timog Allego
10 feb 2018
0
0
656
Data:
7 ore 25 min, 2 gen 1919 anni
Adesso
~ 105 years ago
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