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Chandra Discovers "Rivers Of Gravity" That Define Cosmic Landscape
ScienceDaily Magazine ^
| Thursday, August 01, 2002
| Editorial Staff
Posted on 08/02/2002 4:41:48 PM PDT by vannrox
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Comment #41 Removed by Moderator
To: longshadow
Any thoughts on how this "hot gas" got to be so hot, and why it hasn't radiated most of it's heat out into the surrounding Universe? Also, is it thought that the "hot gas" is still being heated? If so, what's the mechanism and source of energy to heat it?
There is also very hot gas that surrounds clusters of galaxies, which also implies the presence of dark matter. I think the gas is heated by supernovas and such. Perhaps some of that hot gas is siphoned off by the dark matter filaments, but that's just a guess.
To: vannrox
Hot gas? Dark matter? Great density? Are they sure they didn't turn their telescopes on Congress by accident? After all, Li'l Tommy Daschle is definitely a "red dwarf" though not as much so as the 3 1/2 Reich who is running for Governor in Massachusetts.
Congressman Billybob
Click for: "Memo to Li'l Tommy Daschle: 'You're Busted.'"
To: RightWhale
To: Confederate Keyester
Thanks for the background on plasmas. The local university is strong in plasma research, and I might find this an opportunity to combine cosmology and this strength into my degree program. We'll see how it goes, there is still some preparation to be done before I would be ready to start.
Comment #46 Removed by Moderator
To: vannrox
I know there's a Chandra Levy joke in here somewhere.
To: LibKill
Gravity is not a universal constent and all matter, no matter how small has an electro magnetic field...which in turn generates gravity of sorts...or micro gravity. So, if you put all this gas into one area, it's density would create gravity of sorts....which in turn also causes pressure and which in turn creates more friction heat...etc. Does that help?
48
posted on
08/03/2002 12:37:25 AM PDT
by
Stavka2
To: LibKill
Light bend around it because photons of energy are pulled in by the gravitational pull...or in another way to explain it...take a water mellon and put in on a soft mattress...then roll a marble by it. The marble will roll into the indented area around the mellon....that's what mass does to the space...it bends it...pulling lighter objects into its orbit/self.
49
posted on
08/03/2002 12:40:36 AM PDT
by
Stavka2
To: LibKill
Light bend around it because photons of energy are pulled in by the gravitational pull...or in another way to explain it...take a water mellon and put in on a soft mattress...then roll a marble by it. The marble will roll into the indented area around the mellon....that's what mass does to the space...it bends it...pulling lighter objects into its orbit/self.
50
posted on
08/03/2002 12:40:36 AM PDT
by
Stavka2
To: Physicist
What practicle applications can be brought out of this inside a galaxy. How does the gravity affect light and speed dissolution (?sp) while travelling along it? Do they connect most stars or are they simply just randomly strung out through out the galaxy between pockets of dark matter? By the way, if a ship was (for arguments sake) travelling at the speed of light...or somehow faster...and went through a pocket of dark matter, would it be destroyed? Mass on mass? or would it be a matter of the vehicle turning to pure energy and passing through it? Just wondering.
51
posted on
08/03/2002 12:52:43 AM PDT
by
Stavka2
To: Confederate Keyester
astronomers continue to ignore this field of study and, instead, patch up their failing "gravity only" models with more and more arcane, invented theoretical fictions This is because no one has yet found "antigravity" The problem with electric fields is that there are positive and negative charges which also attract each other. The net result is clumping of electrically neutral bodies which simply have no effect at long distances. Because there seems to be an abundance of gravity and little or no anti gravity, gravity becomes additive and works at very long distances.
52
posted on
08/03/2002 7:32:08 AM PDT
by
staytrue
To: Confederate Keyester
"It's an embarrassment that the dominant forms of matter in the universe are hypothetical..." My understanding of physics is that physics is a mathematical description of the universe. Certain descriptions are so useful that they almost become real. Electric vector fields are not real. They are a mathematical description of a phenomena that is so useful that they might as well be real. Gradient and Curl are not real except to physicists who spend so much time working with them, they become real. I find nothing embarrassing that the dominant forms of matter in the universe are hypothetical. They are hypothethical by definition.
53
posted on
08/03/2002 7:46:42 AM PDT
by
staytrue
Comment #54 Removed by Moderator
To: staytrue
Confederate Keyster can overwhelm any argument with only two character strokes: ctrl-c and ctrl-v.
To: RightWhale
56
posted on
08/03/2002 8:12:47 AM PDT
by
68 grunt
Comment #57 Removed by Moderator
To: staytrue
the dominant forms of matter in the universe are hypothetical How about the electron? Every month I get a bill from a utility company claiming that they sent me some electrons. I don't know. I asked one of their EE grid engineers if he had ever seen an electron. He told me to wander up to the physics department. So I did. They said that they knew things about electrons, but had never actually seen one. They sent me to the philosophy department where there was a lecture on aesthetics in art. They said things like, if you saw an electron, how would you know it was an electron? And then, how do you know that you know?
To: Confederate Keyester
A neurtrino was basically a particle that was created to balance out some equations. Theoretically, billions of them are passing through your body every second. But because the "particle" is such a useful mathematical construction and describes some phenomenae so well, it might as well exist if only in our minds.
59
posted on
08/03/2002 1:50:49 PM PDT
by
staytrue
Comment #60 Removed by Moderator
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