On August 6, 1945, at 9:15 a.m. Tokyo time, the "Enola Gay", which is a large plane controlled by Paul W. Tibbets, dropped "Little Boy", which is an atomic bomb, in Hiroshima, Japan. In a short time, half of the city completely disappeared from the map. At least 60,000 people were exterminated or missing, and it is believed that 100,000 people were killed and 140,000 seriously injured. Many more people were left homeless because of the bomb. In the explosion, thousands of people died like lightning. The city was incredibly devastated. Of its 90,000 buildings, more than 67% of the structures have been demolished. Another bomb was assembled on the island of Tinian on August 6. On 8 August, Field Order Number 17 issued by 20th Air Force Headquarters on Guam called for its use the following day. either Kokura or Nagasaki. Originally this was going to be on Kokura, but Nagaskaki was the backup target. Three days after Hiroshima, the B-29 bomber "Bockscar" piloted by Sweeney reached the skies over Kokura on the morning of August 9. He abandoned his main target because the sky was just covered in black smoke and changed course to Nagasaki. At 11 a.m., the "Fat Man" bomb was detonated over the northern factory district 1,800 feet above the city to achieve the maximum effect of the dreaded atomic bomb. Very soon after, buildings collapsed. Electrical systems were short-circuited. A wave of secondary fires occurred, killing more people. Sudden burns caused by primary heat waves caused most of the casualties among the natives. Others were burned after their homes caught fire, leading to numerous fires. Flying debris has caused many injuries, like tornadoes. A storm of fiery winds followed the detonation at Hi...... middle of paper ......ring World War II Los Alamos was approved as the site of the main scientific atomic bomb laboratory on November 25, 1942 by Leslie R. Groves and Robert Oppenheimer. They were given the code name Project Y. A bomb, using plutonium, was successfully tested on July 16, 1945, at a site located 120 miles (193 km) south of Albuquerque, New Mexico. The first atomic bomb used in warfare used uranium. It was dropped by the United States on Hiroshima, Japan, on August 6, 1945. Three days later, Nagasaki was heavily bombed. http://avalon.law.yale.edu/subject_menus/mpmenu.asp http://www.factmonster.com/spot/hiroshima1.html http://www.atomcentral.com/hiroshima-nagasaki.aspx http:/ /www.cnduk.org/campaigns/global-abolition/hiroshima-a-nagasaki http://www.history.com/topics/pearl-harbor http://www.history.com/topics/pearl-harbor