Atomic Bomb Information

By: Clayton Oller and Vince Eller

World War II Atomic Bombs

  • Hiroshima (August 6, 1945)- killed 80,000 people and 90% of city destroyed
  • Nagasaki (August 9, 1945)- 40,000 people are killed
As a result of these bombs Japan surrendered
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Manhattan Project

Funding began in 1940.

First successful test held at the Trinity Test Site in Alamogordo, New Mexico on July 6, 1945.

Pro's and Con's of Bombs

Pro's:

Japan surrenders as a result of the dropping of the bombs

United States gains strength over countries

Soldiers in America are saved

Made other countries make peace instead of war

Con's:

Other countries begin making nuclear weapons

Innocent casualties occurred

Millions of dollars spent improving nuclear weapons

Wall was built dividing nations and people

Leading Scientist and Chemistry Behind It

J. Robert Oppenheimer is the Lead Scientist

Chemistry Behind the Bombs:

Uranium, a fissile element, is usually used in making atomic bombs. This is added to an isotope that assists in a fission chain of nuclear reaction. Whenever a neutron that is free hits a nucleus from a fissile atom it splits into two small atoms and these are called fission fragments. This process causes chain reactions. A piece of a “sub-critical material” is shot into another or when the sphere material is compressed by the use of chemical explosives t “many times its original density” which is the more sophisticated way, but can only be used if the fissile material is Plutonium

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Differences Between the Bombs

Hiroshima or "Little Boy":

Simple design

Had a gun-barrel shape

Was not tested

Nagasaki or "Fat Man":

Complex design

Plutonium-329 was used in a 10 foot bomb

Set off a chain reaction