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Eclectica: Volvelles, Wheel Charts and Slide Charts

Eclectica: Volvelles, Wheel Charts and Slide Charts

Tomorrow 1-4pm is our Astrology themed library pop-up exhibit! This tract by Veronese mathematician Giovanni Padovani treats both astronomy and astrology. Of particular interest in this work are the volvelles: paper cut-outs with rotating parts. Books with moving parts have a long history. Volvelles were used to locate the position of the sun or moon in the zodiac, which would determine the best time (or the worst) to be bled to counter an imbalance of the four humors. Good health required a…

Tomorrow 1-4pm is our Astrology themed library pop-up exhibit! This tract by Veronese mathematician Giovanni Padovani treats both astronomy and astrology. Of particular interest in this work are the volvelles: paper cut-outs with rotating parts. Books with moving parts have a long history. Volvelles were used to locate the position of the sun or moon in the zodiac, which would determine the best time (or the worst) to be bled to counter an imbalance of the four humors. Good health required a…

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