fission


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fission,

in physics: see nuclear energynuclear energy,
the energy stored in the nucleus of an atom and released through fission, fusion, or radioactivity. In these processes a small amount of mass is converted to energy according to the relationship E = mc2, where E is energy, m
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 and nucleusnucleus,
in physics, the extremely dense central core of an atom. The Nature of the Nucleus
Composition

Atomic nuclei are composed of two types of particles, protons and neutrons, which are collectively known as nucleons.
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; see also atomic bombatomic bomb
or A-bomb,
weapon deriving its explosive force from the release of nuclear energy through the fission (splitting) of heavy atomic nuclei. The first atomic bomb was produced at the Los Alamos, N.Mex., laboratory and successfully tested on July 16, 1945.
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.

fission

(fish -ŏn) See nuclear fission.

fission

[′fish·ən]
(biology)
A method of asexual reproduction among bacteria, algae, and protozoans by which the organism splits into two or more parts, each part becoming a complete organism.
(nuclear physics)
The division of an atomic nucleus into parts of comparable mass; usually restricted to heavier nuclei such as isotopes of uranium, plutonium, and thorium. Also known as atomic fission; nuclear fission.

fission

1. Biology a form of asexual reproduction in single-celled animals and plants involving a division into two or more equal parts that develop into new cells
2. short for nuclear fission
References in periodicals archive ?
Fission Labs hopes to make these early stage ideas a reality and turn Hyderabad into a world class smart city and make it a blue print for other smart initiatives across India.
Countries working on nuclear weapons technology usually first develop nuclear weapons that use fission.
In UNIT, nuclear fusion reaction is carried out at the main chamber and fission reaction at the sub-chamber.
The reactor will be blanketed by a fission shell stuffed with uranium-238.
2002, TRACKKEY: a Windows program for calculation and graphical presentation of fission track data.
There are a few Canadian connections here: In Ottawa a young NRC physicist named George Laurence eagerly followed the developing story on fission and decided to try a few experiments at the NRC laboratories at 100 Sussex Drive.
But this begs the question: why would governments invest in fission as opposed to fusion?
TSX-V: ESO), a mineral exploration company, and its 50 percent joint venture partner, Fission Energy (TSX-V: FIS), have started a 33 hole winter drill programme at their PLS Property.
In a departure from recounting the atrocities of millions, Fission instead enters the sacred world of writings by Anne Frank, Elie Wiesel, and Primo Levi, wherein personal experience is set within the larger context of devastation.
Gas samples taken Tuesday from inside the reactor's containment vessel may contain radioactive xenon, a gas typically generated by nuclear fission, the company said.
2 reactor at the plant was caused by spontaneous fission that occurs in any
Summary: L'operateur de la centrale accidentee de Fukushima a annonce hier mercredi avoir decele des signes de recente reaction de fission en chaEne dans un reacteur, un incident qui prouve que tout danger n'est pas encore ecarte.