VOLVELLE
What on earth is a volvelle? I’m sure you’ve seen one before, but maybe you’re like me and just didn’t know the official name! Long ago, volvelles were used to do math and chart the movement of stars. They were complex paper calculators featuring circles. Don’t worry, though: We’ll be making simple volvelles that have little messages, bits of advice, or fortunes. . . whatever you decide!
This project requires a bit more precision than most of the others in this book. I’ve given you measurements for one version of a volvelle. I suggest making one, following the directions and measurements first—just to see how it all works. After you understand ...
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