arrow of time


Also found in: Encyclopedia, Wikipedia.

arrow of time

A phrase used to describe the one-way direction of time as it moves from past to future. It is typically associated with scientific study. The arrow of time may seem like an obvious concept, but it has no real analogue in the physical world.
See also: arrow, of, time

arrow of time (or time's arrow)

the direction of travel from past to future in time considered as a physical dimension.
See also: arrow, of, time
References in periodicals archive ?
Irreversibility, the arrow of time, arrives with the emergence of a definite state from multiple possibilities--that is, the emergence of a distinct moment from continuous presence.
Tommi Markkanen for suggestion of conclusion of their paper and indication of important references in the context of irreversibility of quantum decay process and thermodynamic arrow of time.
Because of Christmas we live in "God's arrow of time".
The post The arrow of time moves in only one direction; forwards appeared first on Cyprus Mail .
The relation of the arrow of time with changes in entropy suggests possible entropie theories of psi.
Read: (http://www.ibtimes.com/arrow-time-why-do-we-remember-past-not-future-2422979) The Arrow Of Time: Why Do We Remember The Past But Not The Future?
Barbour and colleagues admit that the arrow of time issue is far from settled--there's no guarantee that their simple simulation captures all the complexities of the universe we know.
"A thermodynamic system which moves from lesser to greater entropy, at any given temperature, defines an arrow of time." He draws the arrow, as he has done a thousand times, and turns back to her.
The act of reconstructing past psychical life, of changing the arrow of time from a forward to a retrospective direction, is the main premise of penitence.
In seeking to understand the arrow of time, physicists have identified seven different arrows-cosmological, thermodynamic, radiative, gravitational, metrological, subatomic, and psychological-whose deep explanations are still elusive.
the arrow of time is a singular occurrence without sex, shape, element,
Carroll's research interests include particle physics, cosmology, gravitation, the arrow of time, and the nature of dark matter.
It's sterling work, a growling, menacing stomp that nods to Sonic Youth and the Pixies or even Nirvana before the country licks are quickly restored on Arrow Of Time.
The arrow of time moves forward relentlessly, and this is registered in planetary motion no less than in natural phenomena.
The arrow of time appears to move from what I label "past" to what I label "future." Whether that is linear or multidimensional is not a usual question for a communication inquiry.