Digitale Medien
[s.l.]
:
Nature Publishing Group
Nature
142 (1938), S. 1163-1163
ISSN:
1476-4687
Quelle:
Nature Archives 1869 - 2009
Thema:
Biologie
,
Chemie und Pharmazie
,
Medizin
,
Allgemeine Naturwissenschaft
,
Physik
Notizen:
[Auszug] THE interesting visual phenomenon described by Mr. Dartnall in NATURE recently1 was observed by Helmholtz many years ago2. The effect—the appearance of a purple after-image in a patch of light alternating at a frequency just below the critical frequency—no doubt ...
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1038/1421163b0
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