4 ms·
A bit of a nitpick: the first and third bombs ever detonated were plutonium weapons. Uranium bombs were developed in parallel, mostly as a backup plan in case t
by mikeash 8y ago
A bit of a nitpick: the first and third bombs ever detonated were plutonium weapons. Uranium bombs were developed in parallel, mostly as a backup plan in case the much more complicated but otherwise superior plutonium bomb ended up not being workable.