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| State of the art Astronomy circa 1540 |
| Jay Cross |
| Thursday, Oct 8, 2009 at 8:00 PM |
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| What did astronomers know and how did they know it in the era preceding Copernicus' posthumous revolution? Find out what kinds of tools were used, and how well they worked. This will focus on the Triquetum and the table of Chords. This is a short talk with plenty of time for questions and answers.
Jay Cross has been perusing his interest in medieval astronomy for about thirty years, and has built and used some replicas of period instruments to better understand the limits of the abilities of medieval astronomers. In day to day life, he is a much traveled technical trainer for a local software company, and in his spare time is an administrator for the forum connected to Phil Plait's Bad Astronomy site and Universe Today.
Speaker Bio
Please join us for a pre-meeting dinner discussion at Changsho, 1712 Mass Ave, Cambridge, MA at 6:00pm before the meeting. |
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