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8 Dez 1897 Jahr - J. J. Thomson

Beschreibung:

He discovered the electron by experimenting with a Crookes, or cathode ray, tube. He demonstrated that cathode rays were negatively charged.

Zugefügt zum Band der Zeit:

27 Sep 2018
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Datum:

8 Dez 1897 Jahr
Jetzt
~ 128 years ago