ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] THE use of optical wedges in photometry is so convenient and accurate that they are now being largely employed, but their use is, at present, mostly confined to the visible region. Dr. Toy (Phil. Mag., 1920) showed that wedges of neutral grey gelatine between quartz plates could be used down to ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/117724c0
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