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Fri Feb 08, 2002, 03:08pm
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One of the ways my father passes some time is in tutoring college physics students at Pitt & Carnegie-Mellon. A few years ago, my daughter and I wee going through an old desk he wanted to get rid of. We came across a leather case that held one of his slide rules. She had no idea why anyone would want to use one of those.
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Steve M 
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