A 1 Megaton (million ton) nuclear warhead has the destructive power of 1 million tons of TNT.
The measurement comes from the use of TNT's explosive power in quantity. The Trinity test site at...
When it's close to " nothing " I'd say less than 10%. In a survey taken by USA Today several years ago, the most popular answers for this very question was " about 3 % " and " very little ". 10 % is...