ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] Even before the discovery of the double quasar it was realized that gravitational lensing offers a new method of determining cosmological parameters9. The delay, T, between the arrival of two images of a single object depends on the difference in length of the paths traversed and on the difference ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/352043a0
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