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14 фев 1897 г. - J.J. Thompson - 1897

Описание:

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

Добавлено на ленту времени:

10 окт 2017
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Дата:

14 фев 1897 г.
Сейчас
~ 128 г назад