21 дек 1898 г. - Marie and Pierre Curie
Описание:
Marie and Pierre Curie discoed radium on this day. Later they named this phenomenon radioactivity, found how to measure it, separated the ways into alpha, beta and gamma radiation, and found other elements thorium, polonium and radium.Добавлено на ленту времени:
Дата:
21 дек 1898 г.
Сейчас
~ 126 г назад