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From: christm@thor.acc.stolaf.edu (Mark C. Christianson)
Newsgroups: sci.physics,comp.sys.apple2
Subject: Re: VDT fatigue
Message-ID: <1990Jul12.143750.3531@acc.stolaf.edu>
Date: 12 Jul 90 14:37:50 GMT
References: <1990Jun25.18589.2139@cec1.wust1.edu>
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>There is another problem with video display terminals [and TV's close to
>one's head] which is underpublicized: the amount of high-frequency *acoustic*
>noise they put out. ...

When I was a senior in high school, I had a math class in the school's
computer room.  I could tell the instant I walked in the door, if there
was a monitor left on when someone switched off thier computer.  I had
noticed that when the Apple II was switched off that the noise from the
Apple green screen monitor got louder and much more anoying. Does anyone have 
an explaination for this?

Mark C. Christianson
christm@stolaf.edu