2nd episode ENG. In October 1939, US president Roosevelt realised the risk posed by German nuclear research. A letter from Albert Einstein finally arrived at the White House, in which the famous scientist warned him of the possible consequences. Who delivered the letter to the president? How long did it take Roosevelt to respond? And what finally determined the US to go all out in developing the nuclear bomb? That's what historian Michael D. Gordin of Princeton University brings up in the second episode of the Dawn of the Atomic Age podcast.

You can watch our original series over at iVysílání.