The Hubble telescope required the most perfect mirror ever created. Work on it had to be done at night because the vibrations caused by cars driving 4 miles away affected the ability to test the mirror.
from Crazy Facts http://ift.tt/1owO3wL
The Hubble telescope required the most perfect mirror ever created. Work on it had to be done at night because the vibrations caused by cars driving 4 miles away affected the ability to test the mirror.
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