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Title:
Time without end: Physics and biology in an open universe
Authors:
Dyson, Freeman J.
Affiliation:
AA(Institute for Advanced Study, Princeton, New Jersey 08540)
Publication:
Reviews of Modern Physics, Volume 51, Issue 3, July 1979, pp.447-460 (RvMP Homepage)
Publication Date:
07/1979
Origin:
AIP; APS
Abstract Copyright:
(c) 1979: American Physical Society
DOI:
10.1103/RevModPhys.51.447
Bibliographic Code:
1979RvMP...51..447D

Abstract

Quantitative estimates are derived for three classes of phenomena that may occur in an open cosmological model of Friedmann type. (1) Normal physical processes taking place with very long time-scales. (2) Biological processes that will result if life adapts itself to low ambient temperatures according to a postulated scaling law. (3) Communication by radio between life forms existing in different parts of the universe. The general conclusion of the analysis is that an open universe need not evolve into a state of permanent quiescence. Life and communication can continue for ever, utilizing a finite store of energy, if the assumed scaling laws are valid.
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