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1 gen 1932 anni - James Chadwick

Descrizione:

Shot beryllium with charged alpha particles. This produced an unknown radiation. Chadwick interpreted this as neutral charge with the same average mass of proton. This is the discovery of the neutron.

Aggiunto al nastro di tempo:

2 ott 2018
0
0
288

Data:

1 gen 1932 anni
Adesso
~ 93 years ago

Immagini: