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2 jul 1879 año - Sir William Crookes experiments with cathode-ray units

Descripción:

1879 Sir William Crookes’ experiments with cathode-ray tubes led him to demonstrate that the cathode-ray has a negative charge.

Añadido al timeline:

15 may 2018
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fecha:

2 jul 1879 año
Ahora mismo
~ 146 years ago