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8 déc. 1897 - J. J. Thomson

Description:

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

Ajouté au bande de temps:

27 sept. 2018
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0
417

Date:

8 déc. 1897
Maintenaint
~ Il y a 128 ans