ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] Mach originally7 used rotating discs and drums to study the bright and dark bands that appear where ramps of luminance meet plateaux as, for example, at the borders of the penumbra of a shadow. He later devised optical methods to cast shadows8. For the studies reported here we used gratings formed ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/324250a0
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