The heat death of the universe is a suggested ultimate fate of the universe, in which the universe has diminished to a state of no thermodynamic free energy and therefore can no longer sustain processes that consume energy (including computation and life). Heat death does not imply any particular absolute temperature; it only requires that temperature differences or other process may no longer be exploited to perform work. In the language of physics, this is when the universe reaches thermodynamic equilibrium (maximum entropy). The hypothesis of heat death stems from the ideas of William Thomson, 1st Baron Kelvin, who in the 1850s took the theory of heat as mechanical energy loss in nature (as embodied in the first two laws of thermodynamics) and extrapolated it to larger processes on a universal scale.
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Famous quotes containing the words heat, death and/or universe:
“Red river, red river,
Slow flow heat is silence
No will is still as a river
Still.”
—T.S. (Thomas Stearns)
“If thee thy brittle beauty so deceives,
Know then the thing that swells thee is thy bane;
For the same beauty doth, in bloody leaves.
The sentence of thy early death contain.”
—Sir Richard Fanshawe (1608–1666)
“Nothing in the universe is contingent, but all things are conditioned to exist and operate in a particular manner by the necessity of the divine nature.”
—Baruch (Benedict)