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/it/
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August 1, 2025
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15 lugl 1897 anni - Cathode Ray Tube

Descrizione:

J.J. Thompson discovered the electron, the first of the subatomic particles, using the cathode ray tube experiment. He found that many different metals release cathode rays, and that cathode rays were made of electrons, very small negatively charged particles.

Aggiunto al nastro di tempo:

Data:

15 lugl 1897 anni
Adesso
~ 128 years ago

Immagini: