15The Grapple Falls Far From the Tree
The "ton" in megaton (or megatonne) stands for one ton of TNT, the highly volatile chemical that gives dynamite its explosive personality and a ton of which generates about 4.2 gigajoules of energy. For the majority of us who do not need to know what a joule of energy is,
4.2 gigajoules would generate enough force to lift 42 kg. (20 lbs.) of mass about 4.2 million meters off the ground. The largest nuke in the so-called Grapple series of Brit-manufactured warheads yielded 3 megatonnes of face obliterating power and was detonated in the South Pacific (the island nation of Kiribati specifically) in the late 50s.