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ejakulation

Photographed by Irving Penn for US Vogue, September 1983

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magictransistor

Thomas Wright. An Original Theory or New Hypothesis of the Universe. 1750.

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symmetrysymptom

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chaosophia218

Johannes Trithemius - Rotating Paper Volvelle used as a Cipher Disc, “Polygraphy”, 1561. A volvelle or wheel chart is a type of slide chart, a paper construction with rotating parts. It is considered an early example of a paper analog computer. Volvelles have been produced to accommodate organization and calculation in many diverse subjects. Constructed of paper or parchment, volvelles have moving parts made of paper that turn and point to celestial bodies on the timekeeper, or to the attributes of God and arguments for His existence on the mystical volvelle. They resemble astrolabes, which were made of metal and invented much earlier. Volvelles were said to be able to predict the future, and numbers had supernatural significance into the 16th century. Some medieval people suspected volvelles and the people who used them of having malicious intent and working dark magic. But volvelles were later prized, as scientific thought evolved, both for recording knowledge and producing new knowledge.

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