Contest: how many man made objects are visible from space?

[saxman]

The person who supplies a sattellite image of the earth with the most manmade objects wins.

If you don't have an image, you can simply give us a guess.

The winner gets a prize!

 

[perry]

Great Wall of China.......

 

[Supradude]

California Aquaduct...

 

[saxman]

I'll give you a hint: The answer is a LOT larger than you may first imagine.

 

[HomerSapien]

Are you counting cities as well?

I believe the pyramids are visible.

 

[saxman]

Any man made object counts.

 

[yakko]

None.

Edit - Unless you count lights at night that is.

 

[Moonbeam]

You could probably see every man made object the size of a credit cart that's outside with the spy satelites. Isn't only the great wall visible from the moon with the necked eye?

 

[kw3i]

if you put all the elivis impersonators in the same area you could probably see them

 

[NetworkDad]

elvis...LOL

 

[Pretender]

All of them. Since you didn't say "with the naked eye", using magnification and advanced satelites, we can see nearly anything.

 

[xtreme2k]

Sorry but Great wall is NOT visible to human eye from space. Along with any more other builds. These are all myths.

The claim is incorrect. It is well known as one of the most widely believed urban legends, perhaps second only to the famous one about mass suicide by lemmings.

A person with perfect eyesight is able to resolve up to about one minute of arc without binoculars or a telescope. The Great Wall of China is, very approximately, 6 metres wide. This means that it is not directly visible above an altitude of about 20 kilometres, or just over twice the height of Mount Everest. Even if its shadow is taken into account, this would only make it visible, in places, up to perhaps about 60 kilometres at the most. Because of atmospheric drag, this is still below the height necessary for a stable spacecraft orbit.

There are, however, many man-made objects which are visible from outer space, the largest being the Dutch polders or reclaimed land. Cities too can be seen at night because of the bright streetlights.

 

[Pretender]

Impressive, but you just copied and pasted it off that site that was just posted in the thread...

 

[xtreme2k]

yep exactly

actually i wanted to posted the link
but forgot cuz got like 20 browser windows opened

http://www.last-word.com/lastword/answers/lwa148mysteries.html

 

[gittyup]

How about that island airport in Japan?

 

[xtreme2k]

I guess i get the prize
since I got the information you requested

how i got it, is irrelevent.

 

[Pretender]

Actually, doesn't yakko get it since he posted it first?

 

[xtreme2k]

oh yes

i didnt see that before :<

 

[uncouth]

I found this: http://www.last-word.com/lastword/answers/lwa148mysteries.html

It should answer your questions quite well.

When do I recieve my prize money?

 

[guyver01]

From a low orbit of the earth, many artificial objects are visible on the earth, such as highways, ships in the sea, railroads, cities, fields of crops, and even some individual buildings. In this Space Shuttle Photo of the San Francisco Bay Area, highways, bridges, and even Golden Gate Park are visible. While at a low orbit, the Great Wall of China can be seen from space but it is not unique in that regard.

Furthermore, when leaving the earth's orbit and acquiring an altitude of more than a few thousand miles, no man-made objects are visible at all. NASA says, &quot;The Great Wall can barely be seen from the Shuttle, so it would not be possible to see it from space with the naked eye.&quot; Thus, it'd be tough to spot the Great Wall of China or any other object from space. Furthermore, from space, even the continents are barely visible.

 

[Teego]

If we exclude the need for naked eye and allow for satellite, then under the right conditions, certain satellites have been able to read
the titles of golf balls. (Under the certain conditions, which are perfect weather, extremely arid, ideal time of day, ideal location.

And for some reason Titelist balls can never be identified.

(Also, the ball name needs to face up eh.)

 

[yakko]

uncouth,

You don't get the prize money since that is the link I posted first.

 

[shiner]

2 things....

Jessica Alba's breasts.

 

[Moonbeam]

Of course, I forgot normal eyes.

 

[saxman]

Yakko, how many man made objects are visible from space?

I think you should take a look at Guyver1's image.