# Tags

A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

 Type to find tags:
 diffraction× 109 software× 109 coordinate-systems× 108 quantify location in space. moon× 108 A smaller body orbiting a larger, primary body, where the primary body is not a star. hamiltonian× 108 The central term in the hamiltonian formalism. Can be interpreted as an energy input, or "true" energy. biophysics× 107 radioactivity× 106 The property of some materials by which individual atoms decay, emitting energy or particles often transforming into different elements in the process. integration× 105 lie-algebra× 104 A vector space $\mathfrak{g}$ over some field $F$ and kitted with a bilinear, antisymmetric and Jacobi-identity-fulfilling product ("Lie Bracket" or "commutator"). In physics, most often arises as the… gauss-law× 104 A law in Classical Electromagnetism and Newtonian Gravity. symmetry-breaking× 104 statics× 104 Analysis of a system of bodies where all forces are in balance and there is no motion relative to a chosen reference frame. feynman-diagram× 103 rocket-science× 101 topology× 100 dimensional-analysis× 100 Dimensional analysis means to obtain results by analyzing the units in question, etc. DO NOT USE THIS TAG if your question is about degrees of freedom or spatial dimensions. representation-theory× 99 topological-field-theory× 97 for topological field theory (Tft) and topological string theory (tst) questions. large-hadron-collider× 97 World's largest particle accelerator built by the CERN (European Organization for Nuclear Research) near the Franco-Swiss frontier near Geneva, Switzerland. It is designed to collide beams of protons… statistics× 96 wave-particle-duality× 95 rotational-kinematics× 94 A tag for questions about rotational motion, including angular velocity and angular acceleration. telescopes× 94 cosmological-inflation× 92 causality× 92 linear-algebra× 91 To be used for linear algebra, and closely related disciplines such as tensor algebras and maybe clifford algebras. tensor-calculus× 91 crystals× 90 elasticity× 90 action× 89 the integral of the Lagrangian over time, or the integral of the Lagrangian Density over both time and space. surface-tension× 88 Surface tension occurs due to the tendency of liquid molecules to favor their own kind. Surface tension is important in fluid multiphase systems typically at small length and velocity density× 87 defined as the mass per unit volume of a substance. dark-energy× 87 information× 87 for questions on information theory applied to physics, especially in the fields of statistical mechanics and thermodynamics, the black hole information paradox, complexity of dynamical a… hawking-radiation× 86 Radiation that comes from pair production quantum effects in close vicinity to an event horizon, leading to the potential for eventual evaporation of black holes. Two mirror particles are created wit… event-horizon× 86