ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] In these experiments two particular difficulties were found: elimination of parasitic light by spectral analysis leads to a large reduction of an already weak signal, and the peculiar problem of reliable pressure measurement with water vapour. Because of surface adsorption, the pressure changes ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/260131a0
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