Showing posts with label
sunspots
.
Show all posts
Showing posts with label
sunspots
.
Show all posts
March 9 - Happy Birthday, David Fabricius
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Posted on March 9, 2019 Occupation: Pastor Known for: discovery of variable stars and of sunspots Whhhaaattt? How does a pastor...
July 5 – Happy Birthday, Andrew Douglass
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Posted on July 5, 2014 Have you ever seen a tree stump with clear, countable tree rings? Well, today's birthday boy (born o...
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