20 окт 1891 г. - James Chadwick
Описание:
When did they live?Where did they live?
What new information did they contribute to the understanding of the atom?
How did they find this new information?
Interesting facts
Добавлено на ленту времени:
Дата:
20 окт 1891 г.
Сейчас
~ 134 г назад