| 单词 | oscillating universe |
| 释义 | > as lemmasoscillating universe oscillating universe n. Astronomy a model of the universe in which expansion is followed by contraction, explosion, and expansion once more, in an infinite cycle. ΚΠ 1933 H. P. Robertson in Rev. Mod. Physics 5 74/1 Such a universe we refer to as oscillating and denote it by O.] 1933 Rev. Mod. Physics 5 76/1 Einstein's recent proposal to set λ=0 would restrict us to the oscillating universes (type O) and the monotonic universes of the first kind. 1968 R. E. W. Maddison tr. P. Muller Conc. Encycl. Astron. 90/1 Other cosmological models exist in which alternate expansion and contraction can take place giving rise to a pulsating or oscillating universe. 1997 Nature 3 Apr. 448/3 In a high-density Universe, gravity eventually stops the expansion. The Universe then collapses, and if the collapse ends in a bounce and another expansion, we have an oscillating Universe. < as lemmas |
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