WebBritannica Dictionary definition of CRITICAL MASS. [count, noncount] 1. technical : an amount of material (such as plutonium) that is large enough to allow a nuclear reaction to occur. 2. : the size, number, or amount of something that is needed to cause a particular result. Production of the show stopped after complaints from viewers reached ... WebDec 6, 2024 · Anyone who has reached “critical mass,” i.e., sufficient wealth on which to live without ever working again, must absolutely stop playing the growth game to ensure that the critical mass will remain intact. (Of course, any extra “mad money” in one’s pocket can be always thrown at growth investments, pink-sheet stocks, junk bonds or Lotto tickets.)
Fisher v. University of Texas : Have We Reached Critical …
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The Critical Question Involves “Critical Mass” by R. Lawrence …
WebIn nuclear physics, critical mass is defined as the minimum amount of a fissile material required to create a self-sustaining fission reaction. In simpler terms, it’s the amount of … The critical mass for lower-grade uranium depends strongly on the grade: with 20% 235 U it is over 400 kg; with 15% 235 U, it is well over 600 kg. The critical mass is inversely proportional to the square of the density. If the density is 1% more and the mass 2% less, then the volume is 3% less and the diameter 1% less. See more 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 … See more When a nuclear chain reaction in a mass of fissile material is self-sustaining, the mass is said to be in a critical state in which there is no … See more The critical size is the minimum size of a nuclear reactor core or nuclear weapon that can be made for a specific geometrical arrangement and material composition. The critical size must at least include enough fissionable material to reach critical … See more Until detonation is desired, a nuclear weapon must be kept subcritical. In the case of a uranium gun-type bomb, this can be achieved by keeping the fuel in a number of separate … See more The mass where criticality occurs may be changed by modifying certain attributes such as fuel, shape, temperature, density and the installation of a neutron-reflective substance. These … See more The shape with minimal critical mass and the smallest physical dimensions is a sphere. Bare-sphere critical masses at normal density of some actinides are listed in the following … See more The event of fission must release, on the average, more than one free neutron of the desired energy level in order to sustain a chain reaction, and each must find other nuclei and cause … See more WebMay 3, 2024 · Critical mass for startups could be defined as: the smallest group of users that is required for growth to occur. Reaching critical mass is crucial, especially if your … how a multimeter works