Nuclear wappen

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The mushroom clood o the atomic bombin o the Japanese ceety o Nagasaki on August 9, 1945 rose some 11 miles (18 km) abuin the bomb's hypocentre.

A nuclear wappen is an explosive device that derives its destructive force frae nuclear reactions, either fission (fission bomb) or a combination o fission an fusion (thermonuclear wappen).