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#91 |
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It's interesting to note that cosmic rays were one of the first practical proofs of the phenomenon of relativistic time dilation. There are certain types of cosmic rays produced by interactions in the upper atmosphere that are very, very short-lived, but we see far more of them at ground level than we "should" do because, in our frame of reference, time is passing more slowly for the rapidly-moving particle than it is in its own reference frame, hence it takes longer to decay.
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#92 |
The Dank Side of the Moon
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Read it/them many years ago in my early 20's. All the speculation is pretty much discredited but as TGS says above I think reading books like these (Atlantis Rising, Catcher in the Rye, etc. etc.) are all great rites-of-passage!
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#93 | |||
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Oh, as for why visiting aliens would have to be of a higher tech level than we are: We don't have interstellar travel at our tech level, so anyone who does is necessarily ahead of us. Probably way ahead of us. Certainly far enough ahead of us that their researchers would be using some super-tech version of MRI scans, not anal probes. Just sayin' |
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#94 |
Maratus speciosus butt
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http://www.timesonline.co.uk/tol/new...cle7107207.ece
I find it hard to imagine there being many raw materials on Earth that wouldn't be quicker, easier, and cheaper to harvest from comets, asteroids, and plutinoestimals (or whatever they are called this week) than down the gravity well of a planet. |
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#95 |
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yeah, it's a good classic
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#96 | |
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Maybe I am taking the tone of your post wrong, but seriously how many times do I have to say I do not believe this and it was really said just for discussion. But I never said visiting aliens anyway, hence why I said I will not debate if aliens visited, as it is a debate that cannot be won. on that note, anyone see that into the universe with Stephen Hawking? He believes there are aliens, and that they might wipe us out. At least that is one of his theories. |
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#97 |
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I don't think many people would seriously suggest that there are no alien civiliations out there. There are something like 300,000,000,000 stars in our galaxy, and at least the same number of galaxies. We now know that planetary systems are the norm, rather than (as was thought at one time) the exception. To suggest that we are the only planet in the entire universe which has developed intelligent life really is the most monstrous egotism.
However, whether or not interstellar communication, let alone interstellar travel, is feasible, is an entirely different question. |
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#98 | |
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![]() Unless we destroy ourselves before the breakthrough ![]() |
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#99 | |
Bah, humbug!
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#100 | |
The Dank Side of the Moon
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I guess Stephen Hawking is saying that we need to hide in any case. We shouldn't be trying to contact them. ![]() |
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#101 | |
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If our own experience is typical, there may be no more than a 100 year "window" in which a civilization is detectable in radio frequencies; that really is a vanishingly brief interval in the lifetime of a planetary system. |
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#102 | |
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http://www.news.com.au/national/ufo-...-1225844515877 *disclaimer: this is sarcasm* |
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#103 | |
Bah, humbug!
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#104 |
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Just chipping in: I've looked through some of his books and read his arguments.
As a historian, they are absolutely terrible. Fun to read I bet but the guy is not only a little loopy (and I'm an open minded guy) but seems incapable of actually building a cohesive argument. In one of his books he basically argues that some natural landmark was created bya liens as some elaborate landing strip or something. His argument? It kind of looks like one. Yikes. Stay away, except for pure enjoyment. |
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#105 | |
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I wouldn't recommend his books for anything except entertainment. On the other hand I have to admit hearing my father's speculations on the subject when I was growing up sparked my own interest in ancient history and human origins and prehistory. Also, I rather enjoyed the Stargate television shows so I guess I should thank the ancient astronaut crowd for inspiring the writers involved in that. ![]() |
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