The Enola Gay, a B-29 Superfortress, drops 'Little Boy' from an altitude of 31,600 feet on Hiroshima, Japan, Aug 6, 1945. The 15 kiloton explosion killed an estimated 72,000 people in a fiery hurricane of ionized gas and gamma rays. The atomic bomb was developed by the U.S. top secret Manhattan Project at a cost of nearly 2 billion dollars. 160x120, 6.3 sec, full color, audio track. Credit: Photography by Bob Caron, tailgunner. From "The Last Bomb", produced by U.S. War Dept. and released to public domain. Edit and format conversion by Video History Service. For more: Video History Service, Bob Williamson, 76570.2752@compuserve.com