The Atomic Bomb.

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Presentation transcript:

The Atomic Bomb

Manhattan Project Top-secret project to develop a weapon using atomic energy Chief scientist Robert Oppenheimer was in charge of the project First bomb detonated in the desert of New Mexico in July of 1945

Attack on Japan After fighting the Japanese in the Pacific and at Okinawa an invasion of Japan was a daunting task that may cost 500,000 American lives Most advisers to President Truman wanted to end the war as quickly as possible

Potsdam Ultimatum President Truman did not want to send in more troops to fight Issued a statement to Emperor Hirohito to surrender or they could expect complete destruction No mention of the weapon to be used

Hiroshima August 6, 1945 “Little Boy” is dropped on Hiroshima (350,000 people) City was picked as a military target and for psychological effects on Japanese 140,000 Japanese died by the end of the year from the bomb

Nagasaki August 9, 1945 The Japanese had still not surrendered US dropped “Fat Man” on the large seaport responsible for production of Japanese weapons By the end of the year 80,000 Japanese had died from the bomb/ effects

Unconditional Surrender On August 14th the Emperor Hirohito announced Japan’s surrender to the people of Japan On September 2nd the Japanese formally surrendered in a ceremony held on the USS Missouri