Originally Posted by
Excargodog
And seriously, those last few steps are a whole lot easier than they were 80 years ago. Slapper detonators in lieu of bridge wire, for example. And you can get capacitors big enough to power a firing circuit on Amazon. They sell them to power the bass speakers in your low rider
You don't even need an exquisitely timed implosion device... gun type works just fine, if you want an easy, reliable bang and don't care too much about weight or efficiency (ala Little Boy @ Hiroshima).
Not great for ICBM use, but if they just wanted to a demo to prove their point, or the shipping container thing...