3 ms·

We actually got to fusion bombs pretty quickly, in the 1950s. Presumably almost all practical nuclear weapons since then are fission bombs

• dboreham 4y ago
  They're two stage: fission primary and fusion secondary.
  • pfdietz 4y ago
    Three stage: the fusion secondary typically uses a uranium pusher, which undergoes fission from the fusion neutrons.
    • panick21_ 4y ago
      In theory you could do a fusion bomb as a stage, that would make be insane. At least if I understand that correctly.
  • spaetzleesser 4y ago
    I thought the fusion produces a lot of neutrons that then cause a ton of more fission.