Popular movements in the late 1950s pressed toward the Limited Test-Ban Treaty (LTBT), signed in 1963, which prohibited atmospheric testing. It was preceded by a voluntary test moratorium by the United States and the Soviet Union from 1958 through 1961. At the time, the development of nuclear weapons – and other things like a nuclear-powered airplane – was wild and woolly.
One of the points of competition was the size of explosion that a nuclear weapon could produce. This was a somewhat silly competition, because the amount of damage a bomb could wreak increases with the cube root of its energy. So ten 10-megaton (MT; that’s millions of tons of TNT equivalent) weapons would be much more damaging than one 100-MT weapon. But for some, size does matter.
View original post 593 more words