Abstract
I HAVE found that the distance between powder ridges, formed on a flat surface in a sound field1, increases rapidly with the size of the particle. Those who describe Kundt powder ridges make no mention of this fact. My results, however, appear to be a ‘rediscovery’ of some of Kundt's2 original observations which, in view of their importance, are reproduced in the accompanying illustration. Whereas his fine striæ were formed with lycopodium spores of diameter 20 µ, the wider Rippen shown on their right consisted of fine sand grains of peak diameter c. 200 µ.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
$199.00 per year
only $3.90 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
Waller, Nature, 166, 961 (1950).
Kundt, Ann. Physik, 127, 497 (1866).
Andrade, Proc. Roy. Soc., A, 134, 445 (1931); Phil. Trans., A, 230, 417 (1932).
Bagnold, Proc. Roy. Soc., A, 187, 1 (1946).
Soellner and Bondy, Trans. Farad. Soc., 32, 616 (1936).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
WALLER, M. Powder Ridges in a Sound Field. Nature 174, 368–369 (1954). https://doi.org/10.1038/174368a0
Issue Date:
DOI: https://doi.org/10.1038/174368a0
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.
