who developed the atomic bomb ?

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https://www.history.com/topics/world-war-ii/atomic-bomb-history

https://www.history.com/topics/world-war-ii/atomic-bomb-history
Atomic Bomb: Nuclear Bomb, Hiroshima & Nagasaki – HISTORY
A discovery by nuclear physicists in a laboratory in Berlin, Germany, in 1938 made the first atomic bomb possible, after Otto Hahn, Lise Meitner and Fritz Strassman discovered nuclear fission….

https://en.wikipedia.org/wiki/J._Robert_Oppenheimer

https://en.wikipedia.org/wiki/J._Robert_Oppenheimer
J. Robert Oppenheimer – Wikipedia
J. Robert Oppenheimer (born Julius Robert Oppenheimer; / ˈɒpənhaɪmər / OP-ən-hy-mər; April 22, 1904 – February 18, 1967) was an American theoretical physicist and director of the Manhattan Project ‘s Los Alamos Laboratory during World War II. He is often called the father of the atomic bomb .

https://www.britannica.com / event / Manhattan-Project

https://www.britannica.com / event / Manhattan-Project
Manhattan Project | Definition, Scientists, Timeline, Locations, Facts …
Il y a 6 joursManhattan Project, U.S. government research project (1942-45) that produced the first atomic bombs. The project’s name was derived from its initial location at Columbia University, where much of the early research was done. The first bomb was exploded in a test at Alamogordo air base in southern New Mexico on July 16, 1945.

https://en.wikipedia.org/wiki/Manhattan_Project

https://en.wikipedia.org/wiki/Manhattan_Project
Manhattan Project – Wikipedia
The discovery of nuclear fission by German chemists Otto Hahn and Fritz Strassmann in 1938, and its theoretical explanation by Lise Meitner and Otto Frisch, made the development of an atomic bomb a theoretical possibility.

https://www.khanacademy.org/humanities/us-history/rise-to-world-power/us-wwii/a/the-manhattan-project-and-the-atomic-bomb

https://www.khanacademy.org/humanities/us-history/rise-to-world-power/us-wwii/a/the-manhattan-project-and-the-atomic-bomb
The atomic bomb & The Manhattan Project (article) | Khan Academy
Albert Einstein and J. Robert Oppenheimer. Einstein warned that the Germans were researching an atomic bomb and suggested that the United States do the same. Oppenheimer was the leading scientist at Los Alamos National Laboratory. Image courtesy Wikimedia Commons.

https://ehistory.osu.edu/articles/story-atomic-bomb

https://ehistory.osu.edu/articles/story-atomic-bomb
The Story of the Atomic Bomb | eHISTORY
The Japanese bombing of Pearl Harbor on December 7, 1941, accelerated the development of an atomic bomb in the United States. In the spring of 1942, the decision was made to consolidate development activities in Chicago. The objective was to produce a nuclear chain reaction by the end of the year.

https://www.britannica.com/biography/J-Robert-Oppenheimer

https://www.britannica.com/biography/J-Robert-Oppenheimer
J. Robert Oppenheimer | Biography, Manhattan Project, Atomic Bomb …
Il y a 4 joursJ. Robert Oppenheimer, (born April 22, 1904, New York, New York, U.S.—died February 18, 1967, Princeton, New Jersey), American theoretical physicist and science administrator, noted as director of the Los Alamos Laboratory (1943-45) during development of the atomic bomb and as director of the Institute for Advanced Study, Princeton (1947-66).

https://www.britannica.com/technology/atomic-bomb/Development-and-proliferation-of-atomic-bombs

https://www.britannica.com/technology/atomic-bomb/Development-and-proliferation-of-atomic-bombs
Atomic bomb – Nuclear Weapons, Hiroshima, Nagasaki | Britannica
Atomic bomb – Nuclear Weapons, Hiroshima, Nagasaki: The first atomic bomb was built in Los Alamos, New Mexico, during World War II under a program called the Manhattan Project. Los Alamos was approved as the site for the main atomic bomb scientific laboratory on November 25, 1942, by Brig. Gen. Leslie R. Groves and physicist J. Robert Oppenheimer and was given the code name Project Y. One …

https://ahf.nuclearmuseum.org/ahf/history/science-behind-atom-bomb

https://ahf.nuclearmuseum.org/ahf/history/science-behind-atom-bomb
Science Behind the Atom Bomb – Nuclear Museum
The U.S. developed two types of atomic bombs during the Second World War. The first, Little Boy, was a gun-type weapon with a uranium core. Little Boy was dropped on Hiroshima. The second weapon, dropped on Nagasaki, was called Fat Man and was an implosion-type device with a plutonium core. Fission

https://www.thoughtco.com/history-of-the-atomic-the-manhattan-project-1991237

https://www.thoughtco.com/history-of-the-atomic-the-manhattan-project-1991237
The Invention of the Atomic Bomb – ThoughtCo
On August 2, 1939, Einstein wrote a now-famous letter to President Franklin D. Roosevelt, outlining the potential uses of an atomic bomb and ways to help support American scientists in their research. In response, Roosevelt created the Advisory Committee on Uranium the following October. lesoutrali bot