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beamjockeyUrban legend buffs are familiar with the claim that the Great Wall of China can be seen from the Moon (or somewhere else in outer space). Nobody knows quite where this idea comes from.
I've just been reading One Man Caravan by Robert Edison Fulton, Jr. published in 1937 by Harcourt, Brace, and Company.
Departing London in 1932, Fulton rode around the world on a motorcycle, or anyway, he covered 40,000 miles through Europe, the Middle East, India, Indonesia, Indochina, China, Japan, and the United States, relying on steamships for the wetter parts of the world. Good book. I was interested in him because he later invented the Airphibian flying car and the bizarre Fulton Skyhook rescue device. See his obituary for more.
While reading, I was startled to find a reference to the Great Wall space myth in this 1937 book.
I quote from p. 256 of the 1996 edition from Whitehorse Press(ISBN 1884313051):
"As I turned southward from Kaifeng, once again to run along the banks of the Grand Canal, it seemed to me more incredible than ever that the Chinese had built that one great work of Man which scientists maintain can be recognized as human effort by the Man in Mars; and that, none the less, they should have such terrible roads in their country. Maybe the Man in Mars was looking down through his telescope the day I passed, and recorded the progress of some strange insect along the Canal banks."
Snopes says this:
"Where did this belief come from? The exact source is unknown, but the earliest citing we have comes from Richard Halliburton's Second Book of Marvels, the Orient, published in 1938, which states that 'Astronomers say that the Great Wall is the only man-made thing on our planet visible to the human eye from the moon.' Halliburton was an adventurer-lecturer whose travel writings were extremely popular and sold quite well during the first half of the twentieth century (and who wasn't above spinning tall tales in order to enthrall an audience), and if he himself wasn't the originator of this factoid, he undoubtedly helped it to spread widely.
"Whatever its source, since the Great Wall claim antedates man's launching of satellites (and thereby the possibility of photography from space) by decades, it was not the outgrowth of a misinterpreted photograph taken by satellite or a manned space mission. The Great Wall of China extends for some 1,500 miles (although it is actually a series of walls rather than one contiguous wall), and the claim that it is visible from the moon was probably an attempt to find a concise way of conveying the grand scale of the wall to people who had never seen it (outside of black-and-white photographs that could only reproduce small portions of the wall) and of asserting the triumph of man's mastery of the vastness of nature (i.e., even if we couldn't travel into space ourselves, we'd already constructed a man-made object of such large scale that it would surely be visible all the way from from the moon). "
So I have found a source at least a year younger than Halliburton's book. Unfortunately, there's no indication how Fulton learned of the canard. Apparently it was common "knowledge" in the mid-1930s.
The mention of a "Man in Mars," and of a telescope, hints that some astronomer may have worked out the Great Wall example for a particular size of telescope, and claimed that observers on Mars could see the thing. Perhaps this got distorted as it got repeated in various forums.
I'm hoping that the impending digitization of huge numbers of old books by Google Books project will lead to earlier instances of the Great Wall claim.
As an example, a search of books.google.com turns up Peking: A Historical and Intimate Description of its Chief Places of Interest by Juliet Bredon, first published in 1919 in Shanghai.
Google's snippet reads: "There are many other places where this impressive barrier-- the only work of man's hands supposed to be visible from Mars-- may be seen, as it stretches for..."
So this canard stretches back at least to 1919, and it may possibly have orginated with an astronomer.
I've just been reading One Man Caravan by Robert Edison Fulton, Jr. published in 1937 by Harcourt, Brace, and Company.
Departing London in 1932, Fulton rode around the world on a motorcycle, or anyway, he covered 40,000 miles through Europe, the Middle East, India, Indonesia, Indochina, China, Japan, and the United States, relying on steamships for the wetter parts of the world. Good book. I was interested in him because he later invented the Airphibian flying car and the bizarre Fulton Skyhook rescue device. See his obituary for more.
While reading, I was startled to find a reference to the Great Wall space myth in this 1937 book.
I quote from p. 256 of the 1996 edition from Whitehorse Press(ISBN 1884313051):
"As I turned southward from Kaifeng, once again to run along the banks of the Grand Canal, it seemed to me more incredible than ever that the Chinese had built that one great work of Man which scientists maintain can be recognized as human effort by the Man in Mars; and that, none the less, they should have such terrible roads in their country. Maybe the Man in Mars was looking down through his telescope the day I passed, and recorded the progress of some strange insect along the Canal banks."
Snopes says this:
"Where did this belief come from? The exact source is unknown, but the earliest citing we have comes from Richard Halliburton's Second Book of Marvels, the Orient, published in 1938, which states that 'Astronomers say that the Great Wall is the only man-made thing on our planet visible to the human eye from the moon.' Halliburton was an adventurer-lecturer whose travel writings were extremely popular and sold quite well during the first half of the twentieth century (and who wasn't above spinning tall tales in order to enthrall an audience), and if he himself wasn't the originator of this factoid, he undoubtedly helped it to spread widely.
"Whatever its source, since the Great Wall claim antedates man's launching of satellites (and thereby the possibility of photography from space) by decades, it was not the outgrowth of a misinterpreted photograph taken by satellite or a manned space mission. The Great Wall of China extends for some 1,500 miles (although it is actually a series of walls rather than one contiguous wall), and the claim that it is visible from the moon was probably an attempt to find a concise way of conveying the grand scale of the wall to people who had never seen it (outside of black-and-white photographs that could only reproduce small portions of the wall) and of asserting the triumph of man's mastery of the vastness of nature (i.e., even if we couldn't travel into space ourselves, we'd already constructed a man-made object of such large scale that it would surely be visible all the way from from the moon). "
So I have found a source at least a year younger than Halliburton's book. Unfortunately, there's no indication how Fulton learned of the canard. Apparently it was common "knowledge" in the mid-1930s.
The mention of a "Man in Mars," and of a telescope, hints that some astronomer may have worked out the Great Wall example for a particular size of telescope, and claimed that observers on Mars could see the thing. Perhaps this got distorted as it got repeated in various forums.
I'm hoping that the impending digitization of huge numbers of old books by Google Books project will lead to earlier instances of the Great Wall claim.
As an example, a search of books.google.com turns up Peking: A Historical and Intimate Description of its Chief Places of Interest by Juliet Bredon, first published in 1919 in Shanghai.
Google's snippet reads: "There are many other places where this impressive barrier-- the only work of man's hands supposed to be visible from Mars-- may be seen, as it stretches for..."
So this canard stretches back at least to 1919, and it may possibly have orginated with an astronomer.
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no subject
Date: 2007-02-08 11:46 pm (UTC)no subject
Date: 2007-02-08 11:59 pm (UTC)no subject
Date: 2007-02-09 12:29 am (UTC)But the thing that really makes the whole "the Great Wall can be seen from outer space" claim silly is that people assume that the length is what counts. A square the length of the Great Wall on a side of a contrasting color would be easily visible from the Moon with the naked eye. But seeing something that's what, 50 feet wide? from so far away is ludicrous no matter how long it is. It's like saying you should be able to see a fine thread 12" long from a mile away because a dinner plate is visible from that distance.
no subject
Date: 2007-02-09 12:45 pm (UTC)Mars As the Abode of Life - Percival Lowell
Date: 2007-02-09 12:23 pm (UTC)no subject
Date: 2007-02-09 02:18 pm (UTC)"Besides its age it enjoys the reputation of being the only work of human hands on the globe visible from the moon"
The idea of visibility from Mars was probably the original - there were a lot of somewhat weird attempts around this time to figure out if the Martians could see secular changes on Earth like the changes we saw on Mars, debates about signalling them with triangles of forest and so on. All very odd.
no subject
Date: 2007-02-09 02:41 pm (UTC)no subject
Date: 2007-02-09 03:09 pm (UTC)no subject
Date: 2007-02-09 05:38 pm (UTC)I think it was one of the Skylab astronauts who saw a glint of light racing across Russia. Turns out he was seeing the sun reflecting off the tracks of one of the longest straight stretches of railroad in the world.
Wish I could find my copy of _A House in Space_ to see if that's where I got this.
no subject
Date: 2007-02-10 07:10 am (UTC)no subject
Date: 2011-07-10 02:08 am (UTC)So I fire up G-Earth and type in "Great Wall of China". The globe rotates from over North America to over the North Pacific and stops... without significantly dropping altitude...
"All right", I think, "I know *about* where to start looking for the Great Wall in the landscape. So I turn the globe myself and zoom in over northern China to where I start getting the little photo icons. I click on one of the links in the Places box and get the Panoramio set. I click on one of the thumbnails and the pop-up box for the enlargement appears. Inside it says something about a problem with the client, instead of showing me an image.
So, no, the Great Wall is not easily seen from orbit. (Maybe I'll try a bit harder later.)
My understanding is that most of the Wall is overgrown at this late date, so it is largely camouflaged naturally. The PRC only cleared a couple or three select areas for tourism. Even if it were all completely cleared, it should only be about as easy to spot from overhead than, say, an Interstate Highway. Try playing with the satellite pix and see how far in you have to zoom before you see large roads. (Then allow for the fact that you *know* what you're looking for, so you are likely to spot them sooner than you would something unfamiliar...)
I seem to recall hearing that astronauts have spotted the Wall (or, really, the *shadow* cast by it), but only when they knew just where to look. I'd love to know who the "astronomers" in 1938 were who said you'd see it from the Moon. (Recall how relatively cloudless most depictions of the Earth from space were, prior to 1968.)