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HysteryDiagnosis Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Nov-05-11 09:07 AM
Original message
City Lights Could Reveal E.T. Civilization
http://www.sciencedaily.com/releases/2011/11/111103190356.htm

ScienceDaily (Nov. 3, 2011) — In the search for extraterrestrial intelligence, astronomers have hunted for radio signals and ultra-short laser pulses. In a new paper, Avi Loeb (Harvard-Smithsonian Center for Astrophysics) and Edwin Turner (Princeton University) suggest a new technique for finding aliens: look for their city lights. "Looking for alien cities would be a long shot, but wouldn't require extra resources. And if we succeed, it would change our perception of our place in the universe," said Loeb.
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CJCRANE Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Nov-05-11 09:09 AM
Response to Original message
1. I never thought of that.
Seems obvious.
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Lint Head Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Nov-05-11 09:23 AM
Response to Original message
2. This is if aliens use lights and have discovered lighting as we know it.
Edited on Sat Nov-05-11 09:24 AM by Lint Head
If aliens have developed night vision lighting lights would not be needed. It is an interesting idea because light is existing energy.
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CJCRANE Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Nov-05-11 09:25 AM
Response to Reply #2
3. It also depends on the cloud cover...nt
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Demstud Donating Member (288 posts) Send PM | Profile | Ignore Tue Nov-08-11 03:55 PM
Response to Reply #3
15. All true, probably why he said it was a longshot :-P
And if it doesn't require a bunch of extra resources like he said, it's worth a shot. Just another base covered.
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Name removed Donating Member (0 posts) Send PM | Profile | Ignore Sat Nov-05-11 09:40 AM
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4. Deleted message
Message removed by moderator. Click here to review the message board rules.
 
HysteryDiagnosis Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Nov-05-11 09:41 AM
Response to Reply #4
5. So what's your problem with Detroit there buddy? I don't expect you to be here
for long so make it quick.
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shraby Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Nov-05-11 09:45 AM
Response to Reply #4
6. I believe the "leashes" are the top 1% who are sucking the
city dry. They got rid of as much industry as possible and moved it all to what they perceived as greener pastures. Then started in on the rest of the city because they didn't want to support teachers, firemen, police, roads, lights and other infrastructure. Nothing outside of their mansions.
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HysteryDiagnosis Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Nov-05-11 09:49 AM
Response to Reply #6
8. Copy that. I have a problem with blaming the common man for all the ills of the world. n/t
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izquierdista Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Nov-05-11 09:48 AM
Response to Original message
7. Not if they live like North Korea
Then again, N.K. is not exactly civilized.
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HysteryDiagnosis Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Nov-05-11 10:56 AM
Response to Reply #7
9. We can just scope out the leakages from their new clulear program... should show up
on a scan.
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lg59kis Donating Member (50 posts) Send PM | Profile | Ignore Sat Nov-05-11 12:11 PM
Response to Reply #7
10. +1
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saras Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Nov-05-11 12:30 PM
Response to Original message
11. This implies that they are as stupid, wasteful, and emotional with their lighting as we are
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PetrusMonsFormicarum Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Nov-05-11 01:16 PM
Response to Original message
12. Can't see 'em
If they've constructed a Dyson Sphere, a huge thin constructed film that could wrap the entire circumference of a solar system. The benefits of which would include a vast potential living surface and virtually 100% capture of solar energy. Aside from gravitic effects on neighboring stars, a Dyson Sphere would probably be invisible to outside observers.

The drawbacks? It's noon, everywhere, all the time. Every piece of dust, every gram of material in a solar system, all its planets, comets, and gases, would be consumed to make the shell. Even then, it would be paper-thin.

http://ih3.redbubble.net/image.10793698.3391/fc,140x140,black.jpg
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Fumesucker Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Nov-05-11 03:38 PM
Response to Reply #12
13. A Dyson sphere will glow in the far infrared..
All that solar energy impacting will eventually turn to heat which will be radiated off the outside of the Dyson sphere.

To the right instrument it should be fairly obvious, even from a considerable distance.
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Phoonzang Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Nov-06-11 02:06 PM
Response to Original message
14. Um...I thought about this when I was about 12.
Is this a new idea?
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Demstud Donating Member (288 posts) Send PM | Profile | Ignore Tue Nov-08-11 03:57 PM
Response to Reply #14
16. I'm sure the idea isn't new... but
But the method might be. Though it seems like an obvious idea to even children, I doubt most of us would know how to go about actual implementation of that idea, lol.
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