ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] Interesting as the idea may be, we wish to point out that there seems to be a difficulty regarding the frequency of cometary impacts with the Earth. The frequency was estimated by Russel, Dugan and Stewart and it seems best to quote their statement. They write2: "It may readily be computed that a ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/235383a0
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