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Showing posts with label Slide Rule. Show all posts
Showing posts with label Slide Rule. Show all posts
Friday, February 27, 2009
And if you'd like to make your own, just print these two, use your copier to reduce them to a useful size, and then use an exacto knife to remove the view window areas. Presto, you've made your self a sliding lap speed calculator. 
Thanks to Newt and Tris for letting me share this with you. Saturday, February 21, 2009
Two different sides
And if you'd like to make your own, just print these two, use your copier to reduce them to a useful size, and then use an exacto knife to remove the view window areas. Presto, you've made your self a sliding lap speed calculator.
Thanks to Newt and Tris for letting me share this with you.
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