Unwanted line breaks; evanescent waves. ("reinifrosch@xxxxxxxx" )


Subject: Unwanted line breaks; evanescent waves.
From:    "reinifrosch@xxxxxxxx"  <reinifrosch@xxxxxxxx>
Date:    Sat, 3 Apr 2010 15:14:13 +0000
List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>

Dear colleagues, Today I have two questions: 1) When my postings come back to me from Montréal, they contain unwanted line breaks, i.e., very short lines, and sometimes even unwanted empty lines. My son exceptionally could not tell me what to do about that. Can you? 2) Today I googled "evanescent waves" (EW). Wiki correctly says that EWs are standing waves. The kind of EW involved in reducing the frequency of the tone made by a wine glass (or a basilar membrane) when it is put under water, however, is not specially mentioned in Wiki. That EW is similar to a travelling surface wave (TW). In EWs the liquid particles go back and forth (whereas in TWs they move on elliptical trajectories). The liquid sound pressure obeys the Laplace equation. The EW under discussion occurs also in strictly incompressible liquids. Are there published papers on it ? (I already know the 1979 Stanford Univ. PhD thesis of Larry Taber.) Reinhart. Reinhart Frosch, Dr. phil. nat., r. PSI and ETH Zurich, Sommerhaldenstr. 5B, CH-5200 Brugg. Phone: 0041 56 441 77 72. Mobile: 0041 79 754 30 32. E-mail: reinifrosch@xxxxxxxx .


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