PSN-L Email List Message

Subject: Re: Cover for seismo
From: ian ian@...........
Date: Tue, 10 Jul 2001 18:06:55 -1000

I'm a little confused about how heating the top of the cover works.  Won't this
just create an inversion layer at the top of the enclosure?  Ie, instead of the
convection currents going all the way to the top and turning around, the
currents will turn around when they meet the heated layer, perhaps an inch or
two from the top.

Has any measurable reduction in noise been noticed between the heaters being on
and off?


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Larry Cochrane <cochrane@..............>