A Sidewalk Astronomer
John Dobson, an 89 year old with a white ponytail and knack for comedy, is the inventor of the Dobsonian telescope mount, which revolutionized astronomy by making large, inexpensive telescopes and deep space observing available to amateur astronomers around the world.
Kulcsszó:
A Sidewalk Astronomer 2005
astronomer
cosmology
astronomy
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