Nuclear weapon - Wikipedia
A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or from a combination of fission and fusion reactions (thermonuclear bomb). Both bomb types release large quantities of energy from relatively small amounts of matter.
atomic bomb | History, Properties, Proliferation, & Facts ...
Atomic bomb, also called atom bomb, weapon with great explosive power that results from the sudden release of energy upon the splitting, or fission, of the nuclei of a heavy element such as plutonium or uranium.
The Manhattan Project and the Invention of the Atomic Bomb
During World War II, American physicists and engineers began a race against Nazi Germany to develop the first atomic bomb. Their secret endeavor, which lasted from 1942 to 1945, was known as the Manhattan Project. The project led to the invention of nuclear weapons, including two that were dropped ...
What is an Atom Bomb? (with pictures) - wisegeek.com
An atom bomb, known as the A-bomb for short, is a bomb that creates its devastating explosive force by the splitting of atoms' nuclei through a process known as nuclear fission. The atomic bomb, while perhaps not the first weapon of mass destruction, certainly gave rise to the term.
How Nuclear Bombs Work | HowStuffWorks
How Nuclear Bombs Work. by William Harris, Craig Freudenrich, Ph.D. & John Fuller NEXT PAGE . Hiroshima Peace Memorial stands as a visible reminder of the day the Japanese city was bombed on Aug. 6, 1945. After that fateful day, the structure was the only thing still standing in the vicinity of the explosion.
Jorgen Odegard - Atom Bomb
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Atomic bombings of Hiroshima and Nagasaki - Wikipedia
The Hiroshima atom bomb cloud 2–5 minutes after detonation During the night of August 5–6, Japanese early warning radar detected the approach of numerous American aircraft headed for the southern part of Japan.
Five myths about the atomic bomb - The Washington Post
Five myths about the atomic bomb The Hiroshima A-bomb blast, photographed by the U.S. military on August 6, 1945. The explosion was not the sole reason Japan surrendered, despite what American ...
Science Behind the Atom Bomb | Atomic Heritage Foundation
The immense destructive power of atomic weapons derives from a sudden release of energy produced by splitting the nuclei of the fissile elements making up the bombs' core.