USA HISTORY

Detailed explanation-1: -Preparations for the assembly of atomic bombs and the readying of the 509th Composite Group began on April 3. Prior to being sent to Tinian, the 509th practiced accurate bomb dropping in Wendover, Utah. All the bomber groups on Tinian were involved in the devastating incendiary bombing raids launched against Tokyo.

Detailed explanation-2: -The components of the bombs had been sent by cruiser to Tinian in May and the fissionable material was flown out in mid-July. The two atomic bombs were assembled on Tinian, with final assembly to be done in flight.

Detailed explanation-3: -The atomic bomb used at Nagasaki on August 9, 1945, was “Fat Man". The bomb was dropped by a USAAF B-29 airplane named “Bockscar", piloted by U.S. Army Air Force Major Charles Sweeney. The bomb weighed 10, 000 pounds and had a diameter of 60 inches.

Detailed explanation-4: -On August 6, 1945, during World War II (1939-45), an American B-29 bomber dropped the world’s first deployed atomic bomb over the Japanese city of Hiroshima. The explosion immediately killed an estimated 80, 000 people; tens of thousands more would later die of radiation exposure.

Detailed explanation-5: -Tinian, one of the Mariana Islands and part of the Northern Mariana Islands, a commonwealth of the United States, in the western Pacific Ocean. It lies about 100 miles (160 km) north of Guam. Of volcanic formation, it rises to an elevation of 614 feet (187 metres).