Atomic weapons were far more an outgrowth of quantum research than relativity. The mass-energy equivalence is a pretty minor part of the energy release of the a

Atomic weapons were far more an outgrowth of quantum research than relativity. The mass-energy equivalence is a pretty minor part of the energy release of the atomic bomb at ~10%. Most of the energy is simple atomic binding energy; energy before and energy after. Einstein’s politics had more to do with the bomb than his physics.