solid harmonic

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• Solid harmonics — In physics and mathematics, the solid harmonics are solutions of the Laplace equation in spherical polar coordinates. There are two kinds: the regular solid harmonics R^m ell(mathbf{r}), which vanish at the origin and the irregular solid… …   Wikipedia

• harmonic balancer — Also called vibration damper. It usually is a solid crankshaftfan beltpulley that has a weight ring bonded by rubber to the inner crankshaft mounted ring. The outer ring absorbs and cancels out crankshaft vibrations that otherwise might cause the …   Dictionary of automotive terms

• Quantum harmonic oscillator — The quantum harmonic oscillator is the quantum mechanical analogue of the classical harmonic oscillator. It is one of the most important model systems in quantum mechanics because an arbitrary potential can be approximated as a harmonic potential …   Wikipedia

• Einstein solid — The Einstein solid is a model of a solid based on three assumptions: * Each atom in the lattice is a 3D quantum harmonic oscillator * Atoms do not interact with each other * All atoms vibrate with the same frequency (contrast with the Debye… …   Wikipedia

• Cubic harmonic — Cubic harmonics In fields like computational chemistry and solid state and condensed matter physics the so called atomic orbitals, or spin orbitals, as they appear in textbooks[1] …   Wikipedia

• Spherical harmonic analysis — Spherical Spher ic*al, Spheric Spher ic, a. [L. sphaericus, Gr. ???: cf. F. sph[ e]rique.] 1. Having the form of a sphere; like a sphere; globular; orbicular; as, a spherical body. [1913 Webster] 2. Of or pertaining to a sphere. [1913 Webster] 3 …   The Collaborative International Dictionary of English

• Multipole expansion — A multipole expansion is a mathematical series representing a function that depends on angles usually the two angles on a sphere. These series are useful because they can often be truncated, meaning that only the first few terms need to be… …   Wikipedia

• Multipole moment — In mathematics, especially as applied to physics, multipole moments are the coefficients of a series expansion of a potential due to continuous or discrete sources (e.g., an electric charge distribution). A multipole moment usually involves… …   Wikipedia

• Multipole moments — are the coefficients of a series expansion of a potential due to continuous or discrete sources (e.g., an electric charge distribution). A multipole moment usually involves powers (or inverse powers) of the distance to the origin, as well as some …   Wikipedia

• Tube sound — (or valve sound) is the characteristic sound associated with a vacuum tube based audio amplifiers. Some audiophiles prefer the sound that is produced by the distortion characteristics of tube based amplifiers. The audible significance of tube… …   Wikipedia

• sound — sound1 soundable, adj. /sownd/, n. 1. the sensation produced by stimulation of the organs of hearing by vibrations transmitted through the air or other medium. 2. mechanical vibrations transmitted through an elastic medium, traveling in air at a… …   Universalium