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Thread: China Wall...seen from space??

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[quote=ALTUR                   ,20309]Like you Jasna, I have been curious about whether the Great Wall is visible from space.  Although we have the Chinese and American astronauts saying differently, it is quite possible that they are both right/wrong. This apparent anomaly is because they might be referring to two different aspects of the sighting. The Chinese might be referring to actually seeing the structure of the wall, whilst the Americans are referring to the visual line that the Wall creates. From a long time in the air as a pilot, I have frequently noted that it is possible to 'see' a simple wire fence by the difference in appearance of the land on either side. Obviously, a single strand of wire would not be visible, but the effect of farming or other land uses can sometimes be easily seen. In fact, it often happens that actions long since forgotten can be detected this way, ie buried pipelines.Thus, it is possible that the USA astronauts are observing differences in land appearance on either side of the Wall, whereas the Chinese astronauts are responding in the more literal sense of not actually 'seeing' the Wall structure.Maybe someone can offer a better explanation.[/quote]

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