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Windows 7: china wall from moon

27 Jan 2014   #1
kf10

Win 7 home premium 32 bit
 
 
china wall from moon

it is said that astronauts can see the china wall from moon or space,

is it true or just a false rumor????????????
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27 Jan 2014   #2
kf10

Win 7 home premium 32 bit
 
 

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27 Jan 2014   #3
Lady Fitzgerald

Win 7 Ultimate 64 bit
 
 

False. See here.
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.


27 Jan 2014   #4
archer

Windows 7 ultimate x64
 
 

The wall is not visible from moon. Maybe, from Earth's outer orbit.

From the Wiki link you posted.
Quote:
The claim the Great Wall is visible has been debunked many times,[41] but is still ingrained in popular culture.[42] The wall is a maximum 9.1 m (30 ft) wide, and is about the same color as the soil surrounding it. Based on the optics of resolving power (distance versus the width of the iris: a few millimeters for the human eye, meters for large telescopes) only an object of reasonable contrast to its surroundings which is 70 mi (110 km) or more in diameter (1 arc-minute) would be visible to the unaided eye from the Moon, whose average distance from Earth is 384,393 km (238,851 mi). The apparent width of the Great Wall from the Moon is the same as that of a human hair viewed from 2 miles (3.2 km) away. To see the wall from the Moon would require spatial resolution 17,000 times better than normal (20/20) vision.[43] Unsurprisingly, no lunar astronaut has ever claimed to have seen the Great Wall from the Moon.
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27 Jan 2014   #5
Fantail

7 x64 | 7 x64
 
 

Judging by the current pollution content creating haze in China I doubt it.
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27 Jan 2014   #6
Lady Fitzgerald

Win 7 Ultimate 64 bit
 
 

The OP and I cross posted (one posted while the other was still composing an answer) with essentially the same answer yet people keep jumping in afterward to pretty much say the same thing. Amazing!
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27 Jan 2014   #7
archer

Windows 7 ultimate x64
 
 

Quote   Quote: Originally Posted by Lady Fitzgerald View Post
The OP and I cross posted (one posted while the other was still composing an answer) with essentially the same answer yet people keep jumping in afterward to pretty much say the same thing. Amazing!
Just giving out opinion. I think all have the right to say.
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27 Jan 2014   #8
Lady Fitzgerald

Win 7 Ultimate 64 bit
 
 

Quote   Quote: Originally Posted by archer View Post
Quote   Quote: Originally Posted by Lady Fitzgerald View Post
The OP and I cross posted (one posted while the other was still composing an answer) with essentially the same answer yet people keep jumping in afterward to pretty much say the same thing. Amazing!
Just giving out opinion. I think all have the right to say.
Of course you do, if you don't mind being redundant. Just be aware it appeared you didn't bother to read the thread before posting.
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27 Jan 2014   #9
archer

Windows 7 ultimate x64
 
 

I rely on wiki rather than any other link.
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27 Jan 2014   #10
boohbah

Microsoft Windows 7 Home Premium 64-bit 7600
 
 

Its a myth that the great wall can bee seen from the moon,

if i was Neil Nrmstrong all those years ago i would have said "Hey Buzz i can see your house from here"
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