Thursday, 1 May 2014

Astronomer Percival Lowell believed that he was the first…

blood-vessels-on-his-retina-cropped Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece of his telescope, he was in fact looking at the blood vessels in his own eye.






from Crazy Facts http://ift.tt/1mi6rfQ

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