Digitale Medien
[s.l.]
:
Nature Publishing Group
Nature
289 (1981), S. 750-750
ISSN:
1476-4687
Quelle:
Nature Archives 1869 - 2009
Thema:
Biologie
,
Chemie und Pharmazie
,
Medizin
,
Allgemeine Naturwissenschaft
,
Physik
Notizen:
[Auszug] LONG BEFORE the advent of atomic clocks, it was well known that the Earth's rotation was an imperfect time-keeper. Precise time-keeping has always been one of the roles of astronomy and the stars, planets, and satellites provide us with several independent or semi-independent clocks. Rather than ...
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1038/289750a0
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