1 янв 1898 г. - Marie and Pierre Curie
Описание:
Marie and Pierre Curie discover that thorium gives off "uranium rays," which Marie renames "radioactivity."Marie and Pierre Curie discover polonium and announce the existence of another new radioactive element they
name radium.
Paul Ulrich Villard discovers gamma rays.
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Дата:
1 янв 1898 г.
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~ 127 г назад