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1 gen 1932 anni - James Chadwick

Descrizione:

James Chadwick assaulted beryllium atoms with alpha particles. An unknown radiation was produced. Chadwick interpreted this radiation as being composed of particles with a neutral electrical charge and the approximate mass of a proton. This particle became known as the neutron.

Aggiunto al nastro di tempo:

Data:

1 gen 1932 anni
Adesso
~ 93 years ago

Immagini: