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RE: [AV Media Matters] Magnetic fields

Time to go back to Physics 101.  X-rays from an airport scanner will not
change the magnetic domains on a tape or other magnetic media such as a
floppy disc but magnetic fields generated by the motors that drive the belts
can do damage.  This was a problem with early machines and no longer seems
to be a problem in major airports.

Charles Repka

>While I am not 100% sure, I will go out on a limb by stating
>that I doubt the radar used by passing ships would have any cumulative effect
>on your library considering that the X-Ray units (in the same frequency band) used in
>airports do not usually affect magnetic recordings.
>Hope this helps a little,
>George McBride

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