history of science tagged posts

MAS April Monthly Meeting

Theory and Observation in the Pseudo-Annular Eclipse reported near Vienna on 17 June 1433

Prof. Michael Shank

This talk analyzes a solar eclipse that is described as annular, but that other reports and modern calculations show to have been very total. I explore the reasons for this odd state of affairs, since most eclipse observers are impressed by the darkness, not what’s happening immediately around the Sun. I argue that the report comes from a theoretically sophisticated observer with access to a 14th c. annular eclipse report that shaped his observation, which was then used to refute the concentric-sphere astronomy of al-Bitruji, an influential 12-13th century Arab astronomer.

Michael H...

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MAS September Monthly Meeting

Copernicus: A Life on the Frontiers

MAS September Meeting with Dr. Michael Shank

The September MAS meeting will be a virtual meeting hosted with Zoom.

UW Madison emeritus professor of the history of science Dr. Michael Shank will present on “Copernicus: A Life on the Frontiers.”

Description: An unexpected invitation to write a general-audience biography of Copernicus has forced this historian of medieval science to wrestle anew with the founding figure of the Scientific Revolution. I expected the assignment to be quick and easy. Instead, it has driven me back to the sources and completely changed my picture of the man. Copernicus was far more buffeted by Baltic politics and indebted to his late-medieval background than I had ever expected...

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