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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 - Wikipedia

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 ... Finally, on July 16, 1945, the first atomic bomb was tested in the midst of the ...

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 ...

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 nuclear ...

History of the Atom Bomb - Atom Central

www.atomcentral.com/atom-bomb-history.aspx

History leading to the creation of the atomic bomb. Atomic science began many centuries ago with experimenting and probing into the nature and structure of ...

The Manhattan Project [ushistory.org]

www.ushistory.org/us/51f.asp

U.S. History · ushistory.org ..... Gadget This once classified photograph features the first atomic bomb — a weapon that atomic scientists had nicknamed "Gadget.

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 ...

A Brief History of Nuclear Weapons States | Center for Global ...

asiasociety.org/education/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 ...

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 ...