TIL about the Chicago Pile! (I don't know enough about the physics to tell if it could have indeed exploded.) > On 2 December 1942 https://en.wikipedia.org/wi

TIL about the Chicago Pile! (I don't know enough about the physics to tell if it could have indeed exploded.) > On 2 December 1942 https://en.wikipedia.org/wiki/Chicago_Pile-1 https://en.wikipedia.org/wiki/Chicago_Pile-1 > on July 16, 1945 https://en.wikipedia.org/wiki/Trinity_(nuclear_test) https://en.wikipedia.org/wiki/Trinity_(nuclear_test) Two years and a half. This is still a good metaphor for "once you can make a small one, the large one is not far at all."