Becquerel's theory of spontainiosly decomposing chemicals (1 янв 1896 г. – 31 дек 1896 г.)
Описание:
While studying the effect of x-rays on photographic film, he discovered some chemicals spontaneously decompose and give off very pentrating rays.Добавлено на ленту времени:
Дата:
1 янв 1896 г.
31 дек 1896 г.
~ 12 months