ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] To visualize the paths of such beams, we have employed the optical system described by Sven Johnson1, which makes use of the following two principles : (1) a diffraction grating is produced in the quartz by the periodic variations of density in the path of the ultrasonic beam2 ; if the quartz be ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/182790a0
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