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dimensional constant

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  • Dimensional analysis — In physics and all science, dimensional analysis is a tool to find or check relations among physical quantities by using their dimensions. The dimension of a physical quantity is the combination of the basic physical dimensions (usually mass,… …   Wikipedia

  • Dimensional transmutation — In particle physics, dimensional transmutation is a physical mechanism that transforms a dimensionless parameter into a dimensionful parameter. In classical field theory such as gauge theory in four dimensional spacetime, the coupling constant is …   Wikipedia

  • Dimensional reduction — This article is on dimensional reduction in physics. For the statistics concept, see Dimensionality reduction. In physics, a theory in D spacetime dimensions can be redefined in a lower number of dimensions d, by taking all the fields to be… …   Wikipedia

  • Constant curvature — See also: Space form In mathematics, constant curvature in differential geometry is a concept most commonly applied to surfaces. For those the scalar curvature is a single number determining the local geometry, and its constancy has the obvious… …   Wikipedia

  • Two-dimensional nuclear magnetic resonance spectroscopy — (2D NMR) is a set of nuclear magnetic resonance spectroscopy (NMR) methods which give data plotted in a space defined by two frequency axes rather than one. Types of 2D NMR include correlation spectroscopy (COSY), J spectroscopy, exchange… …   Wikipedia

  • Cheeger constant — This article discusses the Cheeger isoperimetric constant and Cheeger s inequality in Riemannian geometry. For a different use, see Cheeger constant (graph theory). In Riemannian geometry, the Cheeger isoperimetric constant of a compact… …   Wikipedia

  • Physical constant — A physical constant is a physical quantity that is generally believed to be both universal in nature and constant in time. It can be contrasted with a mathematical constant, which is a fixed numerical value but does not directly involve any… …   Wikipedia

  • Dimensionless physical constant — In physics, a dimensionless physical constant (sometimes fundamental physical constant) is a universal physical constant that is dimensionless having no unit attached, so its numerical value is the same under all possible systems of units. The… …   Wikipedia

  • Two-dimensional point vortex gas — The two dimensional point vortex gas is a discrete particle model used to study turbulence in two dimensional ideal fluids. The two dimensional guiding center plasma is a completely equivalent model used in plasma physics.General setupThe model… …   Wikipedia

  • Euler–Mascheroni constant — Euler s constant redirects here. For the base of the natural logarithm, e ≈ 2.718..., see e (mathematical constant). The area of the blue region is equal to the Euler–Mascheroni constant. List of numbers – Irrational and suspected irrational… …   Wikipedia

  • Coupling constant — For the Murray von Neumann coupling constant, see von Neumann algebra. For the coupling constant in NMR spectroscopy, see NMR spectroscopy and/or Proton NMR. In physics, a coupling constant, usually denoted g, is a number that determines the… …   Wikipedia

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