Word: reac
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Dates: during 1980-1989
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...atoms are shoved together to become a single, heavier helium nucleus, a tiny bit of their individual masses is converted into a tremendous amount of energy. In weapons, that energy is uncontrolled and destructive. To channel it into a usable form, scientists must be able to control the fusion reac- tion and confine it to a chamber, which requires surmounting some formidable physical constraints. The hydrogen nuclei must be crushed together with enough force to overcome their mutually repellent positive electric charges. In H-bombs, that force is supplied by the detonation of a fission bomb, or A-bomb...
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