A Sidewalk Astronomer
A Sidewalk Astronomer
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John Dobson, an 89 year old with a white ponytail and knack for comedy, is the inventor of the Dobsonian telescope mount, which revolutionized...
Cosmology
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John Dobson, an 89 year old with a white ponytail and knack for comedy, is the inventor of the Dobsonian telescope mount, which revolutionized...