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9 gen 1997 anni - Thomson

Descrizione:

In 1897, J.J. Thomson discovered the electron by experimenting with a Crookes, or cathode ray, tube. He demonstrated that cathode rays were negatively charged. In addition, he also studied positively charged particles in neon gas.

Aggiunto al nastro di tempo:

caleb

ByCaleb Luttrell
13 feb 2020
0
1
230

Data:

9 gen 1997 anni
Adesso
~ 28 years ago
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