Alt-BEAM Archive
Message #04147
To: beam@sgiblab.sgi.com
From: Matt Procopation proc@home.com
Date: Tue, 01 Jun 1999 22:01:09 -0700
Subject: [alt-beam] Re: BEAM forcefield....
At 10:35 PM 6/1/99 -0600, you wrote:
>At 12:08 AM -0000 6/2/99, Chiu-Yuan Fang wrote:
>:What part from the computer are these powerful electromagnets from?
>
>The hard disk... the read/write head's position is often controlled using
>a D'Arsonval movement -- a coil that moves between two fixed magnets. Such
>a moving coil device can be seen in mechanical electrical meters -- the
>degree of deflection is proportional to the current flow.
>
>SAFETY WARNING: These magnets are easily strong enough to pinch/injure
>flesh between them.
>
>
>Zoz
>
Yes, and keep them the hell away from your computer monitor!
I dropped one too close to it and had a nice purple mark on the
screen for a few hours.
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