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Manhattan Project timeline

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zack deal

on 13 December 2013

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Transcript of Manhattan Project timeline

The Manhattan Project
The Manhattan Project truly began when Harold C. Urey discovered deuterium, or heavy oxygen in 1931.
Shortly after, James Chadwick proved the existence of neutrons.
In 1934, Enrico Fermi created the first nuclear fission.
On August 2nd, 1939, Albert Einstein sent President Franklin Roosevelt a letter that stated, "the element uranium may be turned into a new and important source of energy in the immediate future."
Shortly after, on September 1st, Germany invaded Poland. This was the beginning of World War II.
On December 6th, 1941, (the day before the attack on Pearl Harbor), Roosevelt gave the Manhattan Project $2 billion to build the atomic bomb.
On May 7th, Nazi troops surrendered, ending the war in Europe.
On August 6th, 1945, "Little Boy" exploded over Hiroshima. It killed nearly 100,000 people.
On August 9th, "Fat Man" exploded over Nagasaki. It killed nearly 75,000 people.
Japan surrendered shortly after.
The Manhattan Project is one of American history's greatest internal conflicts; was it right or wrong to drop the atomic bombs on Hiroshima and Nagasaki?
So was it right or wrong to drop these bombs?
1945 Public Opinion
85%
Supported
10%
Opposed
5
5%
No Opinion
Today's Public Opinion
61%
Support
22%
Oppose
16%
Undecided
People who support the dropping of the atomic bombs believe that since Japan attacked the United States, the dropping of the bombs was necessary military action.
People who oppose the dropping of the bombs claim that America should not have attacked Japan civilians during the war.
Whether or not the U.S. should have dropped the bombs will always remain a mystery. It's an opinion that everyone possesses and will never really be settled.
"When you see something that is technically sweet, you go ahead and do it and you argue about what to do about it only after you have had your technical success. That is the way it was with the atomic bomb."

J. Robert Oppenheimer

Atomic Bomb. Edward Teller and the Manhattan Project. Mindblowing Science, n.d. Web. 12 May 2013. <http://mindblowingscience.com/brain-food/edward-teller-and-the-manhattan-project/>. An image of the atomic bomb explosion.
Einstein, Albert. Letter to Franklin D. Roosevelt. 2 Aug. 1939. TS. The letter that Einstein sent to Roosevelt concerning the use of atomic weapons in Germany.
Enrico Fermi. Nobel Prize. N.p., n.d. Web. 2 June 2013. <http://www.nobelprize.org/nobel_prizes/physics/laureates/1938/fermi.jpg>. A photograph of Enrico Fermi, who created the first nuclear fission.
Forde, James. James Forde's Interview. Manhattan Project Voices. N.p., n.d. Web. 23 May 2013. <http://www.manhattanprojectvoices.org/>. An interview with James Forde, a lab assistant in the Nash Garage Building where the gaseous diffusion process was developed.
"Harold C. Urey." Nobel Prize. N.p., n.d. Web. 28 May 2013. <http://www.nobelprize.org/nobel_prizes/chemistry/laureates/1934/urey.jpg>. A photograph of Harold C. Urey, the man who discovered deuterium.
James Chadwick. Nobel Prize. N.p., n.d. Web. 28 May 2013. <http://www.nobelprize.org/nobel_prizes/physics/laureates/1935/chadwick_postcard.jpg>. A photograph of James Chadwick who proved the existence of neutrons.
Little Boy. The National Security Archive. N.p., n.d. Web. 2 June 2013. <http://www.gwu.edu/~nsarchiv/NSAEBB/NSAEBB162/little-boy-model.jpg>. A photograph of "Little Boy", the bomb dropped on Hiroshima on August 6th, 1945.
Shepard, Richard. Richard Shepard's Interview. Manhattan Project Voices. N.p., n.d. Web. 23 May 2013. <http://www.manhattanprojectvoices.org/>. An interview with Richard Shepard, who worked in the K-25 plant as a special engineer

"American History Timelines - the Manhattan Project." Infographic. About.com American History. About.com, n.d. Web. 24 May 2013. <http://americanhistory.about.com/library/timelines/bltimelinemanhat.htm>. A timeline of important dates during the Manhattan Project.
Public Opinion of the Bombing of Hiroshima and Nagasaki. N.p., n.d. Web. 2 June 2013. <http://www.atomicheritage.org/mediawiki/index.php/Public_Opinion_of_the_Bombing_of_Hiroshima_and_Nagasaki>. Statistics on the opinions of people after the bombings of Hiroshima and Nagasaki.
"The Race to Build the Atomic Bomb." Timeline. N.p., n.d. Web. 28 May 2013. <http://www.cccoe.k12.ca.us/abomb/timeline.htm>. A timeline of the people and events associated with the creation of the atomic bomb.
on September 23 the Manhattan Project begins and Colonel Leslie Groves is placed in charge, and Robert Oppenheimer becomes the Project's Scientific Director.
in July 1945 Truman gives the go ahead to use the atomic bomb on Japan, and the Potsdam Declaration is issued calling for the 'unconditional surrender of Japan' which is rejected shortly after.
on July 16, 1945 the first successful test of the atomic bomb takes place in the 'Trinity Test' at Alamogordo, New Mexico.
Full transcript