Just How Powerful Was The Biggest Bomb Ever Dropped?

74 years ago, at 8:15 am local time On August 6, 1945, the city of Hiroshima was wiped off the map. 70,000 people were killed in a single instant (the death toll would double by December), and an entire metropolis was razed to the ground when the United States dropped an as-yet untested nuclear bomb into the city center as the citizens of Hiroshima began their day. The uranium-235 gun-assembly bomb, nicknamed “Little Boy” by the United States military, released about 15 kilotons of energy at the moment of detonation, which is equivalent…