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Fermat's Library

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A platform for illuminating academic papers. We annotate and share a paper every week. Save, annotate and share papers with anyone: fermatslibrary.com/margins

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linkhttp://fermatslibrary.com calendar_today10-09-2015 03:54:59

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From 1947 to 1984, Hisako Koyama, a self-taught Japanese solar observer, documented over 8,000 sunspot groups using the same telescope and method for nearly 40 years. In 2014, her sketches became the calibration backbone for a 400-year reconstruction of sunspot activity,

From 1947 to 1984, Hisako Koyama, a self-taught Japanese solar observer, documented over 8,000 sunspot groups using the same telescope and method for nearly 40 years. 

In 2014, her sketches became the calibration backbone for a 400-year reconstruction of sunspot activity,