Weighing 14 pounds and responsible for approximately 80,000 deaths, the heart of the "Fat Man" atomic bomb was detonated on August 9, 1945, over the Japanese city of Nagasaki. Nicknamed after ...

Then, at 11:02 a.m. on Aug. 9, 1945, the U.S. military dropped the “Fat Man” atomic bomb on Nagasaki. Kazuyuki was working at an elementary school about 500 meters from ground zero.