I like aviator styled watches. Some of them have a a dial on the outside that can be used to compute speed/fuel supply/Oil pressure, but I have never learned how to use these functions myself.
CC0 Usage Conditions ApplyClick for more information. As its name suggests, the omnimetre was designed to carry out numerous operations of arithmetic and trigonometry, says Peggy Kidwell, curator of ...
A third edition, soft cover textbook titled, Slide Rule: How to Use It (Barnes & Noble Everyday Handbooks Series #254), by Calvin C. Bishop. The soft cover book has glossy front and back paper covers.
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