4 ms·

And keep in mind that they got the lithium-7 calculation wrong (Castle Bravo). What if they had got nitrogen-14 wrong instead?

• jdavis703 5y ago
  I’m not a nuclear chemist, what would’ve happened?
  • Vecr 5y ago
    Really, really big boom. Nitrogen is in the air. I'm not sure you could make a reasonable counterfactual though, because it's not how the physics works.