Time After Time — Big Bang Cosmology and the Arrows of Time

Vaas, Rüdiger

doi:10.1007/978-3-642-23259-6_2

Cited by 16 publications

(17 citation statements)

References 82 publications

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“…Vaas [11] noted that "The strongest 'concentrations' of gravity, black holes, are also the biggest accumulations of entropy. Physically speaking, gravitational collapse leads to the greatest possible amount of disorder.…”

mentioning

confidence: 99%

Entropy and Gravity

Grøn

2012

Entropy

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Abstract:The effect of gravity upon changes of the entropy of a gravity-dominated system is discussed. In a universe dominated by vacuum energy, gravity is repulsive, and there is accelerated expansion. Furthermore, inhomogeneities are inflated and the universe approaches a state of thermal equilibrium. The difference between the evolution of the cosmic entropy in a co-moving volume in an inflationary era with repulsive gravity and a matter-dominated era with attractive gravity is discussed. The significance of conversion of gravitational energy to thermal energy in a process with gravitational clumping, in order that the entropy of the universe shall increase, is made clear. Entropy of black holes and cosmic horizons are considered. The contribution to the gravitational entropy according to the Weyl curvature hypothesis is discussed. The entropy history of the Universe is reviewed.

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confidence: 99%

Entropy and Gravity

Grøn

2012

Entropy

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“…In reading the literature on time, one will come across descriptions of other arrows of time, covering a full range of circumstances where time progresses in one way only including, as Vass (2012) suggests, the psychological arrow (an experiential steam); the causal arrow (effects follow causes); the evolutionary arrow (directional development and differentiation); the radioactive arrow (exponential growth then decay); the radiative arrow (consistent concentric outward diffusion); the particle physics arrow (decays break symmetries); the quantum arrow (the irreversibility of wave function collapse); and the gravitational arrow (one way forming of distributed structures). However, as far as we know, none of these arrows contravenes thermodynamic rules as they can not escape the universe system and the ways in which it, and everything in it, is subject to entropic change in every moment.…”

Section: … Constituting Numerous Meshed Arrows Of Timementioning

confidence: 99%

All‐world aging: A gero of all things under the material press in time

Andrews

2021

Canadian Geographies / Géographies canadiennes

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This viewpoint considers extending aging studies beyond their current exclusive interest in human beings, conveying recent calls for this in more accessible terms. Specifically noted is that all entities/systems age relationally via the same universal entropic process and hence, based on this understanding, an “all‐world aging” perspective might be developed. A particular consideration is what such a broadening of horizons might offer for advancing our understandings of time—specifically with regard to the material press in time—and the issues it raises in terms of subjectivities.

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“…In the context of climate change and in the energy industry, the term is used in a similar way, see [26, 27] and [28]. Further disciplines are, for example, philosophy, see [29], and art.…”

Section: Ontologymentioning

confidence: 99%