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1. www.history.com › topics › world-war-iiManhattan Project - HISTORY

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   Jul 26, 2017 · In the early 1940s, the U.S. government authorized a top‑secret program of nuclear bomb testing and development, codenamed “The Manhattan Project.”

2. www.fpri.org › article › 2009The Role of Nuclear Weapons in International Politics: A ...

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   The Nuclear Age began with the World War II Manhattan Project (1942–46), which culminated in the Trinity test on July 16, 1945, of the “Gadget” and the August 1945 bombings of Hiroshima and Nagasaki. The Project was led by Gen. Leslie Groves; physicist J. Robert Oppenheimer directed the scientific research.

3. www.gov.uk › government › collectionsUK nuclear deterrence policy - GOV.UK

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   Mar 16, 2021 · For over 60 years, the UK’s independent nuclear deterrent has existed to deter the most extreme threats to our national security and way of life. Since 1969, the deterrent has been delivered by...

4. ahf.nuclearmuseum.org › ahf › historyThe Manhattan Project - Nuclear Museum

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   May 12, 2017 · The Manhattan Project was the result of an enormous collaborative effort between the U.S. government and the industrial and scientific sectors during World War II. Here is a brief summary of the Anglo-American effort to develop an atomic bomb during its World War II and its legacies today.

5. history.blog.gov.uk › 2022/01/07 › whats-the-contextWhat’s the Context? The decision to build a British atomic ...

   history.blog.gov.uk › 2022/01/07 › whats-the-context

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   Jan 7, 2022 · The decision of 8 January 1947 was taken in the context of vulnerability, an aspiration to independence and a determination to secure Britain’s future. This context trumped all, including...

6. www.cambridge.org › core › books18 - Nuclear weapons and the escalation of the Cold War, 1945 ...

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   Sep 28, 2010 · During World War II, three countries decided to build the atomic bomb: Britain, the United States, and the Soviet Union. Britain put its own work aside and joined the Manhattan Project as a junior partner in 1943.

7. People also ask

   Where did the atomic bomb come from?

   • The atomic bomb and the origins of the Cold War The nuclear age began before the Cold War. During World War II, three countries decided to build the atomic bomb: Britain, the United States, and the Soviet Union. Britain put its own work aside and joined the Manhattan Project as a junior partner in 1943.

   18 - Nuclear weapons and the escalation of the Cold War, 1945–1962

   www.cambridge.org/core/books/cambridge-history-of-the-cold-war/nuclear-weapons-and-the-escalation-of-the-cold-war-19451962/E23FC7542F9353AEB2F5DE1149FD8B3C

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   What was the atomic bomb project called?

   • The atomic bomb project thus became known as the Manhattan Engineer District (MED), or Manhattan Project for short. Its first major funding came in December, when President Roosevelt ordered an initial allotment of $500 million.

   The Manhattan Project - Nuclear Museum

   ahf.nuclearmuseum.org/ahf/history/manhattan-project/

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   Why was a British bomb necessary?

   • That made a British bomb even more necessary. The decision of 8 January 1947 was taken in the context of vulnerability, an aspiration to independence and a determination to secure Britain’s future. This context trumped all, including the fact that a commitment to an expensive nuclear future could not be justified economically.

   What’s the Context? The decision to build a British atomic bomb, 8

   history.blog.gov.uk/2022/01/07/whats-the-context-the-decision-to-build-a-british-atomic-bomb-8-january-1947/

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   Why was the atomic bomb developed?

   • The bomb had been developed through wartime cooperation between British, Canadian and US scientists. But hopes of postwar collaboration were dashed by US determination to control access to the ‘atomic secret’. The McMahon Act passed by Congress in August 1946 prohibited sharing nuclear information, even with close allies.

   What’s the Context? The decision to build a British atomic bomb, 8

   history.blog.gov.uk/2022/01/07/whats-the-context-the-decision-to-build-a-british-atomic-bomb-8-january-1947/

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   Why did the United States use the atomic bomb?

   • In an extraordinary display of scientific and industrial might, the United States made two bombs ready for use by August 1945. Germany was defeated by then, but President Harry S. Truman decided to use the bomb against Japan. The decision to use the atomic bomb has been a matter of intense controversy.

   18 - Nuclear weapons and the escalation of the Cold War, 1945–1962

   www.cambridge.org/core/books/cambridge-history-of-the-cold-war/nuclear-weapons-and-the-escalation-of-the-cold-war-19451962/E23FC7542F9353AEB2F5DE1149FD8B3C

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   When was the atomic bomb built?

   • The decision to build a British atomic bomb, 8 January 1947 We’ve got to have this thing over here, whatever it costs. We’ve got to have the bloody Union Jack on top of it. “This thing” as British Foreign Secretary Ernest Bevin put it, was the Atomic Bomb.

   What’s the Context? The decision to build a British atomic bomb, 8

   history.blog.gov.uk/2022/01/07/whats-the-context-the-decision-to-build-a-british-atomic-bomb-8-january-1947/

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8. www.tandfonline.com › doi › fullFull article: The Trinity High-Explosive Implosion System ...

   www.tandfonline.com › doi › full

   Nov 16, 2021 · Here we focus on the development of the convergent explosive implosion system that was employed in the Trinity Christy Gadget test device, sometimes simply referred to as the Gadget, and in the Fat Man bomb that was detonated over the Japanese city of Nagasaki on August 9, 1945.