Scientificamerican
In 1932, a Ripley's Believe It or Not! cartoon said the Great Wall of China was "the mightiest work of man, the only one that would be visible to the human eye from the moon." Nobody could check it. The first person in space was still 29 years away. The claim kept going anyway. A
Though it stretches for some 4,500 miles, the ancient Chinese fortification is not as visible from orbit as modern desert roads
Is China's Great Wall Visible from Space? | Scientific American Skip to main content Scientific American October Issue Newsletters Podcasts Games Explore Biology Chemistry Environment Health Math Mind & Brain Technology Social Sciences Space & Physics Latest News Issue Archive Special Reports Videos Books Subscribe Sign In October Issue Newsletters Podcasts Games Explore Biology Chemistry Environment Health Math Mind & Brain Technology Social Sciences Space & Physics Latest News Issue Archive Special Reports Videos Books Save 50% on Unlimited Subscriptions February 21, 2008 4 m
Though it stretches for some 4,500 miles, the ancient Chinese fortification is not as visible from orbit as modern desert roads
Is China's Great Wall Visible from Space? | Scientific American Skip to main content Scientific American October Issue Newsletters Podcasts Games Explore Biology Chemistry Environment Health Math Mind & Brain Technology Social Sciences Space & Physics Latest News Issue Archive Special Reports Videos Books Subscribe Sign In October Issue Newsletters Podcasts Games Explore Biology Chemistry Environment Health Math Mind & Brain Technology Social Sciences Space & Physics Latest News Issue Archive Special Reports Videos Books Save 50% on Unlimited Subscriptions February 21, 2008 4 m
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