R.I.P. Dr. Zelenko
https://rumble.com/v1ansdc-dr.-zelenko-rest-in-peace.html
Skarfknobbers!
ICBM aren’t returning from orbital velocity. They are on parabolic trajectories.
Yes critical mass is a thing check out demon core, critical mass is all that is needed. And it isn’t that much for plutonium only like 50kg.