Trying to decide if it is worth including diagrams and formulas in the empty space of my celestial sliderule (now with lunar timekeeping on the reverse side)
The SVG is also interactive now! Try dragging the wheels and pointers. Click in the center of the pointer to recenter the reading. https://osresearch.github.io/sunwheel/rule.svg and https://osresearch.github.io/sunwheel/haversine.svg
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