The life-size model could prove a valuable tool ... life-size models of the atomic bombs--known as "Little Boy" and "Fat Man," which were dropped on Hiroshima and Nagasaki--that could create ...

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 ...