Originally posted by squealpiggy
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Why has SETI detected no signals from extra-terrestrial life?
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i think radio waves travel almost as fast as light... thats the fastest we can ever manage right?
unless quantum entanglement becomes more practical...
any input piggy?
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104 star systems, call it 300 planets (I remember reading the average is about 2 planets per star). To contact extra-terrestrials not only would they need to exist first, a problem already but, they'd need to be able to receive the signal and send something back. You've got to remember radio transmission is a relatviely new phenomenon so they could be intelligent as we were in the 1600's and we'd never know about it.
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Originally posted by talip bin osman View Posti think radio waves travel almost as fast as light... thats the fastest we can ever manage right?
unless quantum entanglement becomes more practical...
any input piggy?
Hypothetically, quantum entanglement would be instantaneous. It's the instant transfer of information. There's certain rules in quantum and if two particles become entangled they are bound by rules such as only being able to have certain quantum states relative to the other one.
I'm sure a common example is "spin" (which is mental and hard to understand, I'm struggling a lot). If one particle has a negative spin, then the other would have a positive spin, and this would be known automatically. So if you knew the spin of a particle close to you, you would instantly know the spin of the other one 1 billion light years away.
I'm not sure how they're gonna manifest this as actual transfer of real information, it's not something I've looked into a lot.
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Originally posted by Barnburner View Post104 star systems, call it 300 planets (I remember reading the average is about 2 planets per star). To contact extra-terrestrials not only would they need to exist first, a problem already but, they'd need to be able to receive the signal and send something back. You've got to remember radio transmission is a relatviely new phenomenon so they could be intelligent as we were in the 1600's and we'd never know about it.
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Originally posted by Barnburner View PostRadio waves are the exact same as light, just with a much longer wavelength. They're all electromagnetic waves. X-rays are the same. The exact same thing as visible light except a much shorter wavelength. Our eyes can only detect electromagnetic waves from the "visible spectrum".
Hypothetically, quantum entanglement would be instantaneous. It's the instant transfer of information. There's certain rules in quantum and if two particles become entangled they are bound by rules such as only being able to have certain quantum states relative to the other one.
I'm sure a common example is "spin" (which is mental and hard to understand, I'm struggling a lot). If one particle has a negative spin, then the other would have a positive spin, and this would be known automatically. So if you knew the spin of a particle close to you, you would instantly know the spin of the other one 1 billion light years away.
I'm not sure how they're gonna manifest this as actual transfer of real information, it's not something I've looked into a lot.
christopher nolan is working on a movie that is based on kip thorne's research on relativity...
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Originally posted by Barnburner View Post104 star systems, call it 300 planets (I remember reading the average is about 2 planets per star). To contact extra-terrestrials not only would they need to exist first, a problem already but, they'd need to be able to receive the signal and send something back. You've got to remember radio transmission is a relatviely new phenomenon so they could be intelligent as we were in the 1600's and we'd never know about it.
Something as simple to us as a radio wave may completely confound them.
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Originally posted by talip bin osman View Posti think radio waves travel almost as fast as light... thats the fastest we can ever manage right?
unless quantum entanglement becomes more practical...
any input piggy?Originally posted by Barnburner View Post104 star systems, call it 300 planets (I remember reading the average is about 2 planets per star). To contact extra-terrestrials not only would they need to exist first, a problem already but, they'd need to be able to receive the signal and send something back. You've got to remember radio transmission is a relatviely new phenomenon so they could be intelligent as we were in the 1600's and we'd never know about it.Originally posted by The_Bringer View PostThis is what always baffles me in the whole "intelligent life" debate. This assumption that, if intelligent life does exist outside of Earth, that it'd have to be more intelligent than we are. Not just more intelligent, either, but dramatically more intelligent. I don't buy it. Who is to say that there isn't intelligent life out there that are just now coming to understand what we've already mastered?
Something as simple to us as a radio wave may completely confound them.
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