End of World War II in Asia
Second, and more powerful plutonium implosion atomic bomb, Fat Man, is dropped on Nagasaki from a different "Silverplate" B-29 named "Bockscar", flown by Maj. Charles Sweeney (Atomic bombing of Nagasaki)
American military technology during World War II
On August 6 and 9, 1945, an atomic bomb was dropped on the Japanese cities of Hiroshima and Nagasaki instantly killing 120,000 people. Roughly 100,000 more people died of radiation poisoning in the following years. Six days after the dropping of the bomb on Nagasaki, the Japanese surrendered. The Manhattan Project was the leading collaborative scientific effort and the most secretive of the time. At first, several different labs had scientists working on smaller parts of the atom bomb, but they had no idea as to the magnitude of the project. Later, the project was moved to Los Alamos, New Mexico, led by renowned physicist J. Robert Oppenheimer.