Jake Peter Sonya. The Manhattan Project was the United State’s project created to design an...
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![Page 1: Jake Peter Sonya. The Manhattan Project was the United State’s project created to design an atomic bomb to use to end the war before the axis; mainly.](https://reader035.fdocuments.us/reader035/viewer/2022062500/5697bf941a28abf838c8fffa/html5/thumbnails/1.jpg)
The Atomic Bomb: Hiroshima and Nagasaki
Jake PeterSonya
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The Manhattan Project The Manhattan Project was the
United State’s project created to design an atomic bomb to use to end the war before the axis; mainly the Germans, could create their own atomic bomb.
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Important Dates 1941:
scientists persuaded the Government to support the research of the possible construction of an atomic bomb
June 1942: the army took over the nuclear program
fall of 1942: General Leslie R. Groves and J. Robert Oppenheimer were
selected to head the Manhattan Project
summer of 1942: the site of Los Alamos was chosen
December 1944: information on the Germans progress on the atomic bomb
had been handed over to the war department
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Security The security on the Manhattan
project was very strictMain method of stopping the
possible leak of information was:
compartmentalization
The Germans also had very effective security, from 1941 to late 1944 the United States was unable to find out what stage of the creation of an atomic bomb Germans were at
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The race against the Germans is found to be nonexistent
During the D-Day invasion, the Alsos contingent had the mission of discovering the progress of Germany’s atomic research
Much information was gathered and handed over to the war department by December 1944
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The Bomb 2 bombs were created little boy and
fat man
Little boy was a gun type uranium bomb
Fat man was an implosion type bomb
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Little Boy
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Fat Man
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Testing the Bomb
The uranium bomb was not tested as it was thought that it would obviously be successful
Scientists were unsure of the plutonium bomb, as it was a more complicated design
Therefore a plutonium bomb was tested on
July 16th 1945
After the test the bomb was deemed to be very successful, with an explosion the size of that of 20000 tons of TNT.
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Before The Bombing…
Potsdam Declaration- outlined the terms of surrender for Japan
Winston Churchill, Harry S Truman, and Soviet Josef Stalin met to end the war
stated that if Japan didn’t surrender,
then it would face "prompt and utter destruction"
July 29, 1945--the Japanese rejected the Potsdam Declaration
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Support for Bombing
It would save lives (approx. hundreds of thousands)
b/c dropping the bomb would avoid
an invasion Would also avoid another year of
fighting Bombing = quick solution
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Support Continued…
Was necessary to end WWII liberate about 200,000 Dutch and
400,000 Indonesians from Japanese concentration camps
Japanese atrocities against millions of Chinese, would end
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Opposition Towards Bombing
Some historians believe that Japan would’ve surrendered even without its use
Also, some think that President Truman’s decision was influenced by the Soviets wanted to intimidate them
Wanted to avoid the declaration of war on Japan by the Soviets
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Consequences Colonel Paul Tibbets dropped the
bomb at approximately 8:15 A.M. - Hiroshima time
Nicknamed Little bomb- the 9,700 uranium bomb was dropped over the city and lit the morning sky 1,900 feet above the city
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Victory- Japan Day August 6, 1945 6 am
A B-29 bomber –Hiroshima had a civilian population of 300,000
An important military center, and 43,000 soldiers
The bomb instantly killed
located on the deltas of southwestern Honshu Island facing the Inland Sea Hiroshima had a civilian population of almost 300,000 and was an important military center, containing about 43,000 soldiers
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Aftermath of Atomic Bomb
The power of Japan Islands shall be limited to Honshu, Hokkaido, Kyushu, Shikoku and such minor islands as we determine
Lastly there shall be war reparations in which Japan pays back our four countries
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Current Nuclear Proliferation
The U.N. called for an end to Proliferation of atomic weapons for all countries besides Iran and North Korea
President Obama and the rest of the United Nations was unable to come to a decision on how to punish North Korea for sending a rocket over Japan and into the Pacific Ocean
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Current Nuclear Disarmament
The Non Proliferation Treaties’ (NPT) objective is to prevent the spread of nuclear weapons and technology, while to promote the uses of nuclear energy and achieve complete disarmament
The United States, Russian Federation, United Kingdom, France, and China all have signed the NPT and are obligated to not transfer nuclear weapons.