One Postcard a Day
Showing posts with label
US-2373495
.
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Showing posts with label
US-2373495
.
Show all posts
Sunday, November 30, 2014
405 Years after Galileo Turned His Telescope to the Moon
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When Galileo first turned his improved telescope with 20x magnification to the moon on November 30, 1609, he started to make a series of...
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