Information about the W88 has implied that it is a variation of the normal Teller–Ulam design for thermonuclear weapons. Inside a thermonuclear weapon including the W88, nuclear fission in the main stage will cause nuclear fusion within the secondary stage, which ends up in the primary explosion.S? ?i?n tho?i: B?n c?n nh?p s? ?i?n tho?i mà khôn