Mention892151
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| so:text | We had become so accustomed to think of λ as an essentially positive quantity, and of a finite world with positive curvature, that the idea of investigating the possibility of solutions with negative or zero values of λ and of the curvature simply did not arise. But when this oversight was corrected, it appeared at once that in the non-static case both λ and the curvature need not be positive, but can be negative or zero quite as well. (en) |
| so:isPartOf | https://en.wikiquote.org/wiki/Willem_de_Sitter |
| so:description | Kosmos (1932) (en) |
| so:description | Above is Beginning Quote of the Last Chapter: Relativity and Modern Theories of the Universe==== --X (en) |
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| qkg:Quotation845292 | qkg:hasMention |
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