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27 sept 1923 año - Robert Millikan

Descripción:

He made the discovery of extending the ultraviolet spectrum downwards far beyond the then known limit.

Añadido al timeline:

Science Timeline

ByBrayden Johll
8 ene 2018
0
0
314

fecha:

27 sept 1923 año
Ahora mismo
~ 100 years ago

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