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单词 Olbers' paradox
释义

Definition of Olbers' paradox in English:

Olbers' paradox

noun ˈɒlbəzˌōlbərz ˈperədäks
Astronomy
  • The apparent paradox that if stars are distributed evenly throughout an infinite universe, the sky should be as bright by night as by day, since more distant stars would be fainter but more numerous. This is not the case because the universe is of finite age, and the light from the more distant stars is dimmed because they are receding from the observer as the universe expands.

Origin

1950s: named after Heinrich W. M. Olbers (1758–1840), the German astronomer who propounded it in 1826.

Definition of Olbers' paradox in US English:

Olbers' paradox

nounˌōlbərz ˈperədäks
Astronomy
  • The apparent paradox that if stars are distributed evenly throughout an infinite universe of infinite age, the night sky should display a uniform glow, since every line of sight would terminate at a star. But with an expanding universe of finite age, visible light from very distant stars has not reached the Earth.

Origin

1950s: named after Heinrich W. M. Olbers (1758–1840), the German astronomer who propounded it in 1826.

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更新时间:2024/12/27 14:23:52