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Is Earth Rarer Than We Think?
Discovery ^ | Mar 22, 2013 10:59 AM ET // by | Markus Hammonds

Posted on 03/23/2013 6:00:14 PM PDT by BenLurkin

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To: The_Reader_David

The ancient Greeks also proved that motion is impossible, since to travel any given distance, one must first go half that distance and so on, never actually getting to any destination ...

Ain’t numbers fun?


61 posted on 03/24/2013 10:45:52 AM PDT by PIF (They came for me and mine ... now it is your turn ...)
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To: Lancey Howard

“The vanity of human beings is priceless!”

As it is humorous ...


62 posted on 03/24/2013 10:50:51 AM PDT by PIF (They came for me and mine ... now it is your turn ...)
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To: Mannaggia l'America

or just under 700 miles per second — getting there!


63 posted on 03/24/2013 10:54:52 AM PDT by PIF (They came for me and mine ... now it is your turn ...)
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To: entropy12
“Since the universe is expanding, how much space is out there for it to expand?”

Put more succinctly - Since the universe is expanding in size, how much space is out there for it to expand into?

If that weren't bad enough, the space between objects in space is also expanding ...

64 posted on 03/24/2013 10:58:29 AM PDT by PIF (They came for me and mine ... now it is your turn ...)
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To: sauron

> Please tell me I’m able to sway your opinion, or is your mind still closed?

Right back at you.

Read more than one book, and obtain more than a bunch of cheerleader reviews of “Rare Earth”, before saddling on it as some kind of final word. The book is built on false premises and straw men, and the years have been less and less kind to it and its authors.


65 posted on 03/24/2013 11:09:36 AM PDT by SunkenCiv (Romney would have been worse, if you're a dumb ass.)
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To: entropy12
So the maximum speed achieved by a man made object is 0.65 miles per second.

The man-made Saturn/Apollo spacecraft achieved 25,000 MPH, in trans lunar injection or nearly 7 miles/second. That is the fastest man has ever traveled.

Many of the unmanned deep-space probes have reached far higher speeds.

Helios travles at 150,000 mph or 41 miles/second..

66 posted on 03/24/2013 11:21:42 AM PDT by Ditto
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To: sauron
Dear Lord of Darkness, Sauron,
Well, I do not know what Civ thinks, but common sense likely takes precedence over all the learned theories and theorists.

Just a while back some guy used the Hubble to take a long exposure shot of the night sky were absolutely nothing was visible, nor interesting was known to exist.

He produced about a dime in diameter shot of the sky, showing several million previously unknown galaxies and other formations.

There are trillions and trillions of these formations in our universe containing billions or trillions of stars each, that only here and there does life exist, and only a very few have intelligent life is past statistically absurd.

Those Rare Earth authors are just more learned science grant mongers with a different ax to grind.

Closed minds do not enter into it, common observable sense does.

I, for one, am not impressed because some dude with a PhD after his name claims something is true or false. Some dude is always claiming something with irrefutable, unbasised data is one or the other, only to be proved later on by some other dude with a PhD that the first guy is a moron and flat wrong.

MSNBC makes a lot of the same type of claim about politics, and they are provable morons with axes to grind. If you were to watch them, you might have to agree with them also on the basis of their claims.

I have to agree with Civ here: "The book “Rare Earth” is utter nonsense."

67 posted on 03/24/2013 11:26:02 AM PDT by PIF (They came for me and mine ... now it is your turn ...)
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To: Graybeard58
"Earth is the only example of a living planet that we have in the entire universe"

That statement assumes the author has seen the entire universe, inspected everything in it closely enough to make such a bold and sweeping statement.

I think what the author is implying is that there is Zero evidence that life exists anywhere else in the universe. As far as the 'possibility' of life existing elsewhere, anybody's guess is as good as anyone elses.

68 posted on 03/24/2013 11:47:34 AM PDT by mtg
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To: Ditto

7 miles per second is still far far far away from 186,000 miles per second, do you agree?


69 posted on 03/24/2013 12:03:51 PM PDT by entropy12 (The republic is doomed cuz people have figured out they can get free stuff by voting democrats)
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To: mtg
As far as the 'possibility' of life existing elsewhere, anybody's guess is as good as anyone elses.

Of course, first you have to guess if there are "beings" who share the human concept, "existence" (which, of course, would be necessary for them to be "beings" in the first place). If that is possible (and it could be) then they would need to share the concepts, "time", "space", and "life". If all those chips fell in perfect order, it would then be a remote possibility that we humans and those "beings" could become aware of each other in some way IF they also share any senses with humans (sight, hearing, touch, smell). Since there could be an infinite number of senses, I would think the possibility of mutual awareness is slim to none, and Slim left town. In fact, I suspect the earth is teeming with "beings" that share no senses with humans at all, and we will therefore never make "contact" with them, either.

And as for "beings" who may "exist" on planets many light years away?
LOL.. no, there will be no "contact".

70 posted on 03/24/2013 1:52:06 PM PDT by Lancey Howard
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To: entropy12
7 miles per second is still far far far away from 186,000 miles per second, do you agree?

Light years away.

71 posted on 03/24/2013 2:00:07 PM PDT by Lancey Howard
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To: entropy12
You are correct. But even the 34,000 miles/HOUR spacecraft speed is a far cry from 186,000 miles/SECOND, do you agree?

The crux of the point is that space travel to anything outside of our solar system is a pure pipe dream.

Definitely. It won't ever happen, and aliens will never visit Earth - it's physically impossible... IMHO.

72 posted on 03/24/2013 3:21:47 PM PDT by Mannaggia l'America
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To: entropy12
7 miles per second is still far far far away from 186,000 miles per second, do you agree?

Yes. Precisely 0.000037% of the speed of light.

73 posted on 03/25/2013 7:35:53 AM PDT by Ditto
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