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- Dictionarynuclear fission/ˌnjuːklɪə ˈfɪʃn/
noun
- 1. a nuclear reaction in which a heavy nucleus splits spontaneously or on impact with another particle, with the release of energy.
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- When bombarded by neutrons, certain isotopes of uranium and plutonium (and some other heavier elements) will split into atoms of lighter elements, a process known as nuclear fission. In addition to this formation of lighter atoms, on average between 2.5 and 3 free neutrons are emitted in the fission process, along with considerable energy.
www.britannica.com/technology/nuclear-weapon/Principles-of-atomic-fission-weapons
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3 days ago · Nuclear weapon - Fission, Fusion, Yield: When bombarded by neutrons, certain isotopes of uranium and plutonium (and some other heavier elements) will split into atoms of lighter elements, a process known as nuclear fission.
3 days ago · Nuclear weapon - Fission, Fusion, Delivery: A typical thermonuclear warhead may be constructed according to a two-stage design, featuring a fission or boosted-fission primary (also called the trigger) and a physically separate component called the secondary.
3 days ago · nuclear weapon, device designed to release energy in an explosive manner as a result of nuclear fission, nuclear fusion, or a combination of the two processes. Fission weapons are commonly referred to as atomic bombs.
- A nuclear weapon is a device designed to release energy in an explosive manner as a result of nuclear fission, nuclear fusion, or a combination of...
- Concerns about the devastating effects of nuclear weapons have driven governments to negotiate arms control agreements. Some of the earliest ones i...
- The first test of a nuclear weapon occurred in the United States on July 16, 1945, at the Alamogordo Bombing Range in south-central New Mexico. The...
- The Soviet Union had the most nuclear weapons during the Cold War. The Soviet stockpile reached a peak of about 33,000 operational warheads in 1988...
5 days ago · Nuclear reactors operate thanks to one particularly important nuclear reaction: nuclear fission. In this reaction, an incoming neutron enters the nucleus of a large atom (like uranium) and causes it to into two large chunks.
1 day ago · The opposite is true for the reverse process, called nuclear fission. Nuclear fusion uses lighter elements, such as hydrogen and helium, which are in general more fusible; while the heavier elements, such as uranium, thorium and plutonium, are more fissionable.
3 days ago · Serious nuclear power plant accidents include the Fukushima nuclear disaster (2011), the Chernobyl disaster (1986), the Three Mile Island accident (1979), and the SL-1 accident (1961). [11] Nuclear power accidents can involve loss of life and large monetary costs for remediation work.
1 day ago · In 1938, Hahn, Meitner and Fritz Strassmann discovered nuclear fission, for which Hahn alone, was awarded the 1944 Nobel Prize for Chemistry. Nuclear fission was the basis for nuclear reactors and nuclear weapons.
