matryoshhka: sunekdokhe: crookedindifference: Ibn al-Shatir’s model for the appearances of Mercury, showing the multiplication of epicycles in a Ptolemaic enterprise. 14th century CE. things like this i wish i could study all day.

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matryoshhka: sunekdokhe: crookedindifference: Ibn al-Shatir’s model for the appearances of Mercury, showing the multiplication of epicycles in a Ptolemaic enterprise. 14th century CE. things like this i wish i could study all day.

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