Electronic Resource
[s.l.]
:
Nature Publishing Group
Nature
141 (1938), S. 333-333
ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] THE phenomenon of ‘divergent’ beams of sunlight is known to everyone. The illusion of divergence of the beams is so good that one has forcibly to remind himself that they are really parallel. One day last summer, I observed 'convergent' beams and this observation was corroborated by ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/141333a0
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