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Reply to "Book: Solution of Railroad Problems Using the Slide Rule"

When I was a junior and senior in college, calculators were just coming out and a few had one. However because at that time they were pretty expensive the professors made us use a slide rule on tests. When my son was in high school he had to have a graphing calculator. Now having a computer is a requirement in both HS and college. We've come a long way!

Ken

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
330-757-3020

www.ogaugerr.com
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