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J.J thomson (8 янв 1897 г. – 16 янв 1897 г.)

Описание:

Discovered the electron by experimenting with cathode ray, tube. Demonstrated that cathode ray is negative charged .

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8 окт 2018

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Дата:

8 янв 1897 г.

16 янв 1897 г.

~ 8 days

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