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The idea for the atomic bomb was patented by Hungarian physicist Leó Szilárd in 1934.
Enrico Fermi, member of the scientific team working on the Manhattan Project, achieved the world's first sustained and controlled nuclear chain reaction at the University of Chicago on December 2, 1942, which led to the creation of the first atomic bomb.

History of nuclear weapons

en.wikipedia.org/wiki/History_of_nuclear_weapons

Nuclear weapons possess enormous destructive power from nuclear fission or combined fission and fusion reactions. Starting with scientific breakthroughs ...

Read "The Development and Proliferation of Nuclear Weapons"

www.nobelprize.org/educational/peace/nuclear_weapons/readmore.html

Besides the many discoveries and inventions in the fields of electronics and ... Should the Germans be the first to develop the envisaged "atomic bomb," Hitler ...

Invention and Discovery: Atomic Bombs and Fission

nuclearweaponarchive.org/Usa/Med/Discfiss.html

Invention and Discovery: Atomic Bombs and Fission. Last changed April 1997. Leo Szilard and the Invention of the Atomic Bomb. It would be logical to assume ...

The Atomic Bomb aka The Manhattan Project - Inventors - About.com

inventors.about.com/od/astartinventions/a/atomic_bomb.htm

Albert Einstein and other scientists told Roosevelt of Nazi Germany efforts to build an atomic bomb - the United States Government began the Manhattan Project ...

Atomic Bomb | HISTORY

www.history.co.uk/study-topics/history-of-ww2/atomic-bomb

At approximately 8.15am on 6 August 1945 a US B-29 bomber dropped an atomic bomb on the Japanese city of Hiroshima, instantly killing around 80,000 ...

Who invented the atomic bomb? - Quora

www.quora.com/Who-invented-the-atomic-bomb

The scientific developments that directly led to the first atomic bomb (fission bomb ) was the discovery that you could split an atom in a process called nucl...

Albert Einstein and the Atomic Bomb - Was It Necessary?

www.doug-long.com/einstein.htm

ALBERT EINSTEIN. and the. ATOMIC BOMB. The physicist Albert Einstein did not directly participate in the invention of the atomic bomb. But as we shall see, he ...

A Brief History of Nuclear Weapons States | Asia Society

asiasociety.org/brief-history-nuclear-weapons-states

The world's first nuclear weapons explosion on July 16, 1945 in New Mexico, when the United States tested its first nuclear bomb. Not three weeks later, the ...

Who Built the Atomic Bomb? | Atomic Heritage Foundation

www.atomicheritage.org/history/who-built-atomic-bomb

How did the United States achieve the remarkable feat of building an atomic bomb ... the proximity fuse, and the atomic bomb, inventions that were critical to the ...

Popular Q&A
Q: Who invented the first nuclear bombs?
A: Well the germans were the first to think of it the Russians were the first to make one and America is the first to use it. Read More »
Source: wiki.answers.com
Q: Who invented the thermo nuclear bomb?
A: Conception of the neutron bomb is generally credited to Samuel Cohen who Read More »
Source: www.chacha.com
Q: Which country in Asia invented the first nuclear bomb?
A: After USSR (mostly in asia) China. Read More »
Source: wiki.answers.com
Q: Did Albert Einstein invented the first Nuclear Bomb.
A: Do you think that he was such a stupid to invent such things to destroy planet Earth. Read More »
Source: answers.yahoo.com
Q: Who invented the nuclear bomb?
A: Ernest Rutherford has been said to invent the nuclear bomb. John Cockcroft &Ernest Read More »
Source: www.chacha.com