Quote:
Originally Posted by kota1342000
A common thought that enters into the mind is a "blue flash" kind of explosion or a "miniature nuclear blast"...neither of which happen with an RDD. The blue flash actually comes from criticality incidents (most of these during manufacture of fissile material for nuclear weapons) and for a miniature nuclear blast you would need to build a nuclear weapon as usual...just much less fissile material in the core.
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Is that the same as a sub-yield explosion, like the North Koreans keep having happen? Or is a sub-yield explosion simply a mistake in design?