Hiroshima Nuclear Explosion(广岛核爆).ppt

Hiroshima Nuclear Explosion By: Vivian The Causes The Process The Influences g Contents ? A new clear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission or a combination of fission(裂变） and fusion（聚变）. Both reactions release vast quantities of energy from relatively small amouts of matter. Einstein: The Theory of Relatively (E=mc2) ← 16 July 1945 Los Alamos New Mexico → 3 years research 2000000000 dollarssticks of dynamite(炸药） New Clear Weapon By July 1945, the war in Europe was over, Nazi Germany was defeated, while the war against Japan was raging on in the Pacific. After the surprise attack on Pearl Harbour, the Americans had tried firebombing the Japanese into submission.City after city was reduced to rubble, but still the Japanse refused to surrender. Nazi Germany surrended Japanese defended to death ? a full-scale invasion → the Allies: 1000000 casualties the Japanese: 1000000 casualties At the same time, the Japanese held the Special War Direction Council to decide what course to follow next. Priminister Suzuki and Foriegn Minister Togo were considering a negociated settlement, but Army minister General Anami was determined to fight on. 1. Soviet mediation 2. All-out final battle 3. The Samurai spirit (武士精神） entire nation in arms (全民皆兵） Then, when the American President, Harry Truman had just arrived in Berlin on 16th July for the Potsdam Conference where he was meeting his fellow Allied leaders, the Japans destiny was doomed. Truman would use the new clear weapon to spare the soldiers from invading the Japanese Home Islands. But before going ahead with the new bomb, Truman gave the Japanese one last chance to surrender by softening the surrender terms from the total unconditional surrender to the unconditional surrender. the Potsdam Conference →