Tag Archives: History of the Book

Johann Schreck: Galileo’s Friend in China

How did knowledge spread in Galileo’s world? Johann Schreck joined the Jesuit order in 1611, the same year that he used Galileo’s telescope to observe the satellites of Jupiter. Upon becoming a Jesuit, Schreck joined the Jesuit mission in China, … Continue reading

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Books as Instruments

In this remarkable book, Regiomontanus predicted the positions of the Sun and Moon for 40 years. He designed a sundial to work independently of one︎’s latitude, and a volvelle, or circular dial, to locate the position and phase of the … Continue reading

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