1 ч 28 мин, 2 авг 1939 г. - August 2, 1939
Описание:
Albert Einstein writes President Franklin D. Roosevelt, alerting the President to the importance of research on chain reactions and the possibility that research might lead to developing powerful bombs.Добавлено на ленту времени:
Дата:
1 ч 28 мин, 2 авг 1939 г.
Сейчас
~ 84 г назад
