Time Scale

A time scale specifies divisions of time.

  • Time standard, a specification of either the rate at which time passes, or points in time, or both
  • Duration (disambiguation), a quantity of time
  • Geological time scale, a scale that divides up the history of Earth into scientifically meaningful periods
  • In astronomy and astrophysics:
    • Dynamical time scale either (in stellar physics) measures the length of time over which changes in one part of a body can be communicated to the rest of that body, or (in celestial mechanics) is a realization of a time-like argument based on a dynamical theory
    • Nuclear time scale, estimates the lifetime of a star based solely on its rate of fuel consumption
    • Thermal time scale, estimates the lifetime of a star once its fuel reserves at its center are used up or if they were to disappear
  • In cosmology and particle physics:
    • Planck time, the time scale beneath which quantum effects are comparable in significance to gravitational effects
  • In mathematics:
    • Time scale calculus, the unification of the theory of difference equations with differential equations
  • In music:
    • rhythm, a temporal pattern of events
    • Time scale (music), divides up music into sections based on the scope

Famous quotes containing the words time and/or scale:

    Old hippies don’t die, they just lie low until the laughter stops and their time comes round again.
    Joseph Gallivan (b. 1964)

    I have spent all my life under a Communist regime, and I will tell you that a society without any objective legal scale is a terrible one indeed. But a society with no other scale but the legal one is not quite worthy of man either.
    Alexander Solzhenitsyn (b. 1918)