can the gr8 wall of china be seen from space?

@timuss (474)
India
February 16, 2007 4:07am CST
i hv heard this many time hv u also ?
5 responses
@pilbara (1436)
• Australia
16 Feb 07
It depends what you mean by space. It can be seen from a low orbit, but once out of the earths orbit it can't be seen (you would need to be less than about 1500miles from the earth). It certainly cannot be seen from the moon.
@pilbara (1436)
• Australia
16 Feb 07
If you're interested you can check out what NASA has to say about it.
@pilbara (1436)
• Australia
16 Feb 07
Generally it is believed that an object has to be about 500 metres x 500 metres to be able to be seen and the great wall is about 10metres wide. Earths atmosphere extends up to about 400km and apparently from there you can see it, but only if you know exactly where to look and what you are looking for. In 2003 the chinese had an expedition into space and they reported they could not see it from space.
• India
16 Feb 07
yes it's absoultely correct..am accepting your point..
@sathya2j (138)
• India
16 Feb 07
no way...it tats so...then evry highway can be seen frm space...great wall s same as tat of an highway..
@nitsy_s (1031)
• India
16 Feb 07
Check this link for more info; http://www.space.com/scienceastronomy/visible_from_space_031006.html
@mhv236690 (341)
• India
16 Feb 07
oh yes.the great wall of china can be seen from space its not just a saying but it is true!!this is a great marvel,this tells us that even the ancient human beings had a sense of engineering!!
@nitsy_s (1031)
• India
16 Feb 07
Yeah...U are right. Its the only man made structure that can be seen from space.
@timuss (474)
• India
16 Feb 07
but isnt it wonders u tht at such a height its not able to comprehend continents fully thn how come such a meagre thing in respect of distance be seen?
• India
16 Feb 07
yes it's correct..we can see wall of china from space, so you can think of the height and length...