For the first time, explosion of the Atomic Bomb containing plutonium as Nagasaki Atomic Bomb at July 16,1945 in human history

　The first atomic bomb was blasted at 5:29 am on July 16, 1945 at the Alamogordo in New Mexico state in the human history. This experiment was confidentially developed and preliminarily prepared at the Los Alamos National Laboratory in same state. In the cabin surrounded by a tin plate, an atomic bomb containing 36 kg plutonium inserted into 5 tons of metal balls for experimental explosion was strictly installed. Since plutonium is a difficult atom to raise the purity, it had been purified in a huge cyclotron facility in Hanford, Washington state. It was designed to be a sphere for implosion which equally compresses on the surface of pure plutonium usually with an explosion with TNT. Plutonium type with "Fat Man" was dropped and exploded at Nagasaki City.