Dear Jim,
A solar calculator is a good tool to have, but old style slide rules never require any batteries, do all major math functions, and provide a visual aid for teaching logarithmic functions. It's worth having, and learning to use, a couple of those, too. - Michael Z. Williamson - SurvivalBlog's Editor at Large
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About this Entry
This page contains a single entry by Jim Rawles published on December 8, 2009 7:52 PM.
Letter Re: Buying a House in Australia? was the previous entry in this blog.
Three Letters Re: Best Military Manuals with Field Fortification Designs? is the next entry in this blog.
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