1 янв 1898 г. - Paul Villard-Gamma
Описание:
Paul Ulrich Villard discovered gamma rays while he was testing out other experiments on radioactivity and also figures out in 1900 that they are more penetrating than the other rays.Добавлено на ленту времени:
Дата:
1 янв 1898 г.
Сейчас
~ 126 г назад
