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单词 big crunch
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big crunch
big crunch n. Astronomy a contraction of the universe to a singular state of extreme density and temperature (a hypothetical opposite of the big bang (see big bang n. 1)).
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the world > the universe > [noun] > contraction
big crunch1980
1980 A. R. Marlow Quantum Theory & Gravitation 67 It could be expected that Wheeler's ‘gates of time’ would appear naturally in our model—the ‘big bang’ and the ‘big crunch’ being identified as a single orthocyclic projection.
1981 J. Ellis in J. H. Mulvey Nature of Matter vi. 143 If..it does not contain a sufficient density of matter to cause it to collapse back on itself into a Big Crunch then the Universe will continue to expand forever.
1984 J. D. Barrow & J. Silk Left Hand of Creation 234 Closed universe, a model of the universe that is finite in total volume and in total age. It evolves from a ‘big bang’ to a point of maximum expansion before contracting back to a ‘big crunch’ of high density and temperature.
2003 Daily Tel. 12 Feb. 8/1 Armageddon was postponed indefinitely yesterday as Nasa scientists confirmed that the universe would continue to expand forever rather than end in a dramatic ‘Big Crunch’.
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