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Transcript of Manhattan Project
When?/Why the need to make bombs? how they were made.
Who was involved?
Effects/How it was used (what ) "As the bomb fell over Hiroshima and exploded, we saw an entire city disappear. I wrote in my log the words: 'My God, what have we done?'" - Captain Robert Lewis. "I made one great mistake in my life - when I signed the letter to President Roosevelt recommending that atom bombs be made but there some justification - the danger that the Germans would make them." - Albert Einstein. "I am become Death, destroyer of worlds" - J. Robert Oppenheimer "The atomic bomb made the prospect of future war unendurable." - J. Robert Oppenheimer. A photograph shows the first atomic bomb test on July 16, 1945, at 5:30am at the Trinity Site in New Mexico
- The dawn of the Atomic Age.
- Was informally nicknamed the 'Gadget'.
- There were many skeptics over the success of the Gadget.
- Some feared that it would leak into the atmosphere and destroy the planet, others feared the wipe of the entire state.
- Led to the design of an 'implosion' style bomb, which was used in the 'Fatboy' Bomb in Japan ! "Father of the atomic bomb"
Scientific director of the Manhattan Project. J. Robert Oppenheimer Capt. Robert A. Lewis Albert Einstein Hiroshima Nagasaki Urged Roosevelt to start manufacturing atomic bombs before Germany. Co-pilot of the Enola Gay, the B-29 Superfortress bomber which dropped the atomic bomb Little Boy on Hiroshima on August 6, 1945. Nagasaki was a secondary target. Kokura was the primary.
Dropped by 'Bockscar' (B-29 plane).
'Fat Man' had a 6.4 Kg Plutonium core.
The blast generated winds of 1,005 Km/h and temperatures of 3,900 degrees celcius.
August 9, 1945, 11:01 AM - Fat Man was released and it exploded 43 seconds later, 469 m above the ground.
39,000 people were instantly killed. Total death toll of 70,000. Letter written by Leo Szilard , to President Roosevelt :
- Ultimately built the foundations for planning the use of Nuclear energy into Weaponry and into the medical field.
- Was sent on the 2nd of August 1939
- Was sent to be signed by Albert Einstein as Leo considered himself as too insignificant for the Presidents attention.
- Lists the importance of a development of a nuclear research.
- It was later in Einstein's life after the bombing did he regret signing the letter as he was a pacifist. http://upload.wikimedia.org/wikipedia/commons/4/4e/Nagasaki_1945_-_Before_and_after_(adjusted).jpg http://www.english-online.at/history/world-war-2/mushroom-cloud-over-nagasaki.jpg http://www.atomicarchive.com/Photos/Hiroshima/images/Cloud.jpg http://michaelgr.files.wordpress.com/2008/02/nagasaki-before-after.jpg?w=450 August 6, 1945
60 Kg of Uranium-235 were contained within 'Little Boy'.
At 08:15, the Enola Gay (B-29 plane) dropped the nuclear bomb over the center of Hiroshima.
It exploded about 600 meters above the city with a blast equivalent to 13 kilotons of TNT.
Instantly killed an estimated 80,000 civilians.
By the end of 1945, another 60,000 people died of radiation sickness. Total death toll: 140,000. The Explosion at the 'Trinity' Site "Fat Man" and "Little Boy" Unofficial emblem developed for the Manhattan Project - The Shoulder Patch which was introduced in 1945 - By Anton Nguyen and Connor Tan - http://www.historylearningsite.co.uk/bombing_of_nagasaki.htm http://atomicbombmuseum.org/2_firstbombs.shtml http://upload.wikimedia.org/wikipedia/commons/thumb/5/5b/Manhattan_Project_US_Canada_Map_2.svg/700px-Manhattan_Project_US_Canada_Map_2.svg.png