- Olbers' paradox[Olbers' paradox 词源字典]
- "if stars are uniformly distributed through the sky, their number should counterbalance their faintness and the night sky should be as bright as the day;" named for German astronomer H.W.M. Olbers (1758-1840), who propounded it in 1826.[Olbers' paradox etymology, Olbers' paradox origin, 英语词源]