Manhattan Project

- Official name: Manhattan Engineer District
- Time Period: 1941 - 1946
- Started in response to Adolf Hitler's rise to power
- Administrative Director: Leslie Groves, United States Army
- Research Director: Robert Oppenheimer
- Achieved 3 successful detonations
- Three main project sites: Hanford Site; Oak Ridge, TN; Los Alamos National Laboratory
- Over 30 sites in total
- Trinity Test detonated near Alamogordo, New Mexico
- "Little Boy" detonated over Hiroshima, Japan
- "Fat Man" detonated over Nagasaki, Japan
- Project costs neared $2 billion U.S. dollars
- Nuclear weapons based on concept of Nuclear fission

The Manhattan Project was a top-secret operation during World War II to develop a nuclear (atomic) weapon. The project was conducted jointly by the United States, Canada, and the United Kingdom.
Key Dates
1. 1934: Enrico Fermi discovers artificial radioactivity through firing neutrons at uranium atoms
2. February, 1941: Glenn Seaborg discovers plutonium
3. 1942: Oppenheimer holds a conference on nuclear weapon design
4. July 15, 1946: Trinity Test
5. August 6, 1946: "Little Boy"
6. August 9, 1946: "Fat Man"

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Manhattan Project on Amazon
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Manhattan Project Questions

What is Project Constellation? 2 Answers

Project Constellation, is a NASA program involving the replacement for the Space shuttles. -quote- "Project Constellation is a NASA program to create a new gene... read more

Who is the mascot for the Prince's Rainforest Project? 1 Answer

A very cute green frog! read more

What are my public transportation options to commute from northern NJ to Manhattan? 2 Answers

Your basic options are to take the bus or train. There are some private bus companies, but I don't have much experience with them and for the most part I think... read more

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