3 ms·
Atmospheric nuclear detonations have contaminated all un-so-shielded metals: https://en.m.wikipedia.org/wiki/Low-background_steel https://en.m.wikipedia.org/wik
by jpt4 10y ago
Atmospheric nuclear detonations have contaminated all un-so-shielded metals: https://en.m.wikipedia.org/wiki/Low-background_steel https://en.m.wikipedia.org/wiki/Low-background_steel