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From: ems@amdahl.UUCP (ems)
Newsgroups: net.micro.mac
Subject: Re: Is the Mac+ socketed? (Really fans...)
Message-ID: <2630@amdahl.UUCP>
Date: Wed, 22-Jan-86 20:55:32 EST
Article-I.D.: amdahl.2630
Posted: Wed Jan 22 20:55:32 1986
Date-Received: Fri, 24-Jan-86 21:36:51 EST
References: <1345@mhuxt.UUCP> <479@ssc-vax.UUCP> <2613@amdahl.UUCP> <246@tolerant.UUCP>
Organization: Circle C Shellfish Ranch, Shores-of-the-Pacific, Ca
Lines: 20
Summary: Just how quiet is quiet?  Try 0 (yes zero) db.

In article <246@tolerant.UUCP>, maddog@tolerant.UUCP (Bill Arnett) writes:
> 
> I don't really care if my mac has a fan or not so long as I can't
> hear it in a quiet room at 2AM.  How about some real data on this 
> subject:  it shouldn't be all that hard for someone to measure the
> 						       -------
> sound output of various fan-equiped macs.

Just remember that the definition of 0 (zero) db is that it is
the level of sound at which a person with normal hearing can
just begin to detect a sound.  This means that for a fan to be
totaly inaudable to a normal ear it must make less than zero db.

This is a tall order.  (Some of us don't work in the kitchen near
the fridge and don't have forced air heat and don't live near a
freeway and don't ... quiet is below zero.)
-- 
E. Michael Smith  ...!{hplabs,ihnp4,amd,nsc}!amdahl!ems

This is the obligatory disclaimer of everything.