Great Wall of China

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Grammatron
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Great Wall of China

Post by Grammatron »

I always heard this was an Urban Legend apperently it's not nor is being since from space such a big accomplishment.

http://news.bbc.co.uk/2/hi/asia-pacific/4459311.stm
A photograph taken from space appears to confirm that China's Great Wall can be seen with the naked eye after all.
....
In the picture, which is plastered over the front page, the wall is highlighted in orange to distinguish it from a nearby road and railway.

The picture sent back by Mr Chiao, who is currently aboard the International Space Station, was authenticated by a leading Chinese expert.

This is just as well, because the astronaut, being interviewed by satellite and e-mail, said he himself was not actually sure he had really captured the wall.

He is going to try to snap it again when he next passes over China but he will have to be quick because he is orbiting at a speed of 8km (five miles) a second.

China's pride may be a bit blunted, because lots of other things such as Egypt's pyramids and even various airports can be seen, too.

But it can take some comfort in the fact that this apparent breakthrough was at least made by an astronaut of Chinese descent.
I wonder what the leading Chinese expert was an expert in.

CHARLEY_BIGTIME

Post by CHARLEY_BIGTIME »

What paper and where's the picture?

I was under impression that the wall was only visible from outside the atmosphere in radar pictures.

http://www.jpl.nasa.gov/radar/sircxsar/sc-gwall.gif

And why didn't it show up last year?

http://news.bbc.co.uk/2/hi/asia-pacific/3505040.stm

Hurm...

This requires further investigation...

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Geni
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Post by Geni »

I still want to know if the camera has the same resolution as the human eye.

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Grammatron
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Post by Grammatron »

Geni wrote:I still want to know if the camera has the same resolution as the human eye.
What resolution does human eye have?

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gnome
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Post by gnome »

I remember this was treated elsewhere, and found that the answer was: it depends on what counts as "in space".