Little Boy Bomb History:
On August 6, 1945, shortly after the Enola Gay rose from its runway on Tinian Island in the Pacific, Morris “Dick” Jeppson descended into the bomb bay to commerce arming our weapon nick-named “Little Boy”. It was the first atomic bomb to be used as a weapon. The weapon was developed by the Manhattan Project during World War II. It derived its explosive power from the nuclear fission of uranium 235. The Hiroshima bombing was the second artificial nuclear explosion in history, after the Trinity test, and the first uranium-based detonation.