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:
“And so, standing before the aforesaid officiator, the two swore that at every other time of their lives till death took them, they would assuredly believe, feel, and desire precisely as they had believed, felt, and desired during the few preceding weeks. What was as remarkable as the undertaking itself was the fact that nobody seemed at all surprised at what they swore.”
—Thomas Hardy (1840–1928)
“I love to weigh, to settle, to gravitate toward that which most strongly and rightfully attracts me;Mnot hang by the beam of the scale and try to weigh less,—not suppose a case, but take the case that is; to travel the only path I can, and that on which no power can resist me. It affords me no satisfaction to commence to spring an arch before I have got a solid foundation.”
—Henry David Thoreau (1817–1862)