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20 ore 19 min, 31 dic 1912 anni - Niel Bohr (copy) (copy) (copy) (copy) (copy) (copy) (copy) (copy) (copy) (copy)
Descrizione:
Proposed hydrogen atom theory
Aggiunto al nastro di tempo:
30 gen 2018
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Data:
20 ore 19 min, 31 dic 1912 anni
Adesso
~ 111 years ago