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Map of nuclear-armed states of the world NPT -designated nuclear weapon states (China, France, Russia, United Kingdom, United States) Other states with nuclear weapons (India, North Korea, Pakistan) Other states presumed to have nuclear weapons (Israel) NATO or CSTO member nuclear weapons sharing states (Belgium, Germany, Italy, Netherlands, Turkey, Belarus) States formerly possessing nuclear ...
Hans Bethe talking about the formation of the United Nations Atomic Energy Commission on Peoples Archive. "General Findings and Recommendations Approved by the Atomic Energy Commission and Incorporated in its First Report to the Security Council, December 31, 1946" — from The Avalon Project at Yale Law School
In nuclear fission, the nucleus of a fissile atom (in this case, enriched uranium) absorbs a thermal neutron, becomes unstable and splits into two new atoms, releasing some energy and between one and three new neutrons, which can perpetuate the process.
Nuclear weapons; Background; Nuclear explosion; History; Warfare; Design; Testing; Delivery; Yield; Effects; Workers; Ethics; Arsenals; Target selection; Arms race ...
1932 – James Chadwick discovers the neutron, leading to experiments in which elements are bombarded with the new particle. [5] [6]1933 – Leó Szilárd realizes the concept of the nuclear chain reaction, although no such reaction was known at the time.
A comparison of the potential in a hydrogen atom with that in a Rydberg state of a different atom. A large core polarizability has been used in order to make the effect clear. The black curve is the Coulombic 1/r potential of the hydrogen atom while the dashed red curve includes the 1/r 4 term due to polarization of the ion core.
Explosion of a Blue Danube warhead (codenamed Buffalo R2/Marcoo, fired on 4 October 1956) during the British nuclear tests at Maralinga. Initial designs for the Blue Danube warhead were based on research derived from Hurricane, the first British fission device (which was neither designed nor employed as a weapon), tested in 1952 at the Montebello Islands in Western Australia.
During World War II, Japan had several programs exploring the use of nuclear fission for military technology, including nuclear reactors and nuclear weapons.Like the similar wartime programs in Nazi Germany, it was relatively small, suffered from an array of problems brought on by lack of resources and wartime disarray, and was ultimately unable to progress beyond the laboratory stage during ...