El bloc de d'Artagnan

Common misconceptions: Chinese wall

Posted in Geek life by dartagnan on 7 gener 2011

Arran d’aquest acudit, he fet una ullada a l’entrada de Wikipedia de Common misconceptions.

Common misconceptions
Acudit de xkcd.com

Aquesta m’ha agradat especialment:

  • It is commonly claimed that the Great Wall of China is the only man-made object visible from the Moon.[42] This is false. None of the Apollo astronauts reported seeing any man-made object from the Moon, and even the earth-orbiting astronauts can barely see it. The misconception is believed to have been popularized by Richard Halliburton decades before the first moon landing. Shuttle astronaut Jay Apt has been quoted as saying “…the Great Wall is almost invisible from only 180 miles up.”[43

L’entrada inclou una foto amb la següent nota al peu:

A satellite image of a section of the Great Wall of China, running diagonally from lower left to upper right (not to be confused with the much more prominent river running from upper left to lower right). The region pictured is 12 x 12 km (7.5 x 7.5 miles).

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