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Qu'est-ce (qui) est critical mass - définition
WIKIMEDIA DISAMBIGUATION PAGE
Critical Mass (band); CriticalMass; Critical Mass (album); Critical Mass; Critical Mass (short story)
critical mass
![neutron reflector]] increases the efficiency of the reactions and also allows the reaction to become self-sustaining.](https://commons.wikimedia.org/wiki/Special:FilePath/Critical mass.svg?width=200 "neutron reflector]] increases the efficiency of the reactions and also allows the reaction to become self-sustaining.")
![fizzle]]) can occur, whereby a very small explosion will blow the bulk of the material apart.](https://commons.wikimedia.org/wiki/Special:FilePath/Nuclear predetonation.svg?width=200 "fizzle]]) can occur, whereby a very small explosion will blow the bulk of the material apart.")
In physics, the minimum amount of fissionable material
required to sustain a chain reaction. Of a software product,
describes a condition of the software such that fixing one bug
introduces one plus epsilon bugs. (This malady has many
causes: creeping featurism, ports to too many disparate
environments, poor initial design, etc.) When software
achieves critical mass, it can never be fixed; it can only be
discarded and rewritten.
[Jargon File ]
(1994-12-23)
Critical mass
In nuclear engineering, a critical mass is the smallest amount of fissile material needed for a sustained nuclear chain reaction. The critical mass of a fissionable material depends upon its nuclear properties (specifically, its nuclear fission cross-section), density, shape, enrichment, purity, temperature, and surroundings.
critical mass
1.
In physics, the critical mass of a substance is the minimum amount of it that is needed for a nuclear chain reaction. (TECHNICAL)
N-SING: also no det
2.
A critical mass of something is an amount of it that makes it possible for something to happen or continue.
Only in this way can the critical mass of participation be reached.
N-SING: also no det
Wikipédia
Critical mass (disambiguation)
Critical mass is the amount of fissile material needed to sustain nuclear fission.
Critical mass may also refer to:
Exemples du corpus de texte pour critical mass
1. The entire country was experiencing critical mass.
2. "It‘s really a question of critical mass," he said. «
3. Hispanics, he says, have reached a critical mass.
4. A bit like critical mass, but without the clothes.
5. Women have yet to reach that critical mass in politics.