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If the black hole had the same mass as our sun, mercury would not be sucked in.
about mercury being inside the orbit, there is some truth to it. but it is really negigible. first of all the mass of mercury is miniscule when compared to the sun. Now mercury will exert a gravitational force on earth, that much is true. it will be at a maximum when aligned between us and the sun, and weakest on the other side. Think of it as it's own vector, but it is much much weaker than the sun. the effects are almost none. the net result over a long average is that mercury's mass could be assumed to be at the center of its orbit, the sun. but this will not be the case on detail.
Hey. Actually, all black holes emit x-ray radiation into space. This is how we can see them, and see that they are there.
I don't think the black hole emits the x-rays. I believe the x-rays come from the matter nearing the event horizon. Once past the event horizon, the x-rays can no longer escape. I may be wrong... but I'm not. :P
no u are right about that. it's the masses about to enter the event horizon that emit energy.
General relativity states that a planet rotating on an axis has a greater gravitational pull than a planet not rotating. A black hole's additional gravitational pull comes from its kinetic energy, not its mass. Black holes are masses that rotate violently on an axis, and the more stuff they suck in, the more massive and energetic they get.
Also, I read earlier that all particles contain mass, but this is not true. Photons (electromagnetic waves) contain only energy and no mass. But energy does react to gravity the same way that mass does, so this is why light cannot escape a black hole.
"Udoboy CommentTimeSep 27th 2006 quote
Fine. don't believe me. Start your own branch of physics. "
(For some reason my "quote" button is not working) I didn’t say that I didn’t believe you; I just need some help in understanding it. Besides people have made up physics before and it was right
, just look at star trek. Or watch "how William Shatner changed the world" on the History channel, its funny and they back it up (well some of it) with actual science.
That's true... Isaac Asimov, Star Trek and some sci-fi writers have been surprising accurate as to what is possible.
I was being facetious anyway. As a star collapses into a neutron star or black hole, I'm pretty sure all the electrons in all the atoms are expelled. Which, by the way, would put an enormous positive magnetic charge on the new stellar object.
How is it not working?
Keep in mind that it does not show up until you post - before that, it's just HTML code.
< blockquote >< cite >Posted By: akula682< /cite >(For some reason my "quote" button is not working)< /blockquote >
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Posted By: akula682(For some reason my "quote" button is not working)
wow geog u r a klever dik. what a dickfuck, balls ass shit, damn.
Posted By: GeogHow is it not working?
Keep in mind that it does not show up until you post - before that, it's just HTML code.
< blockquote >< cite >Posted By: akula682< /cite >(For some reason my "quote" button is not working)< /blockquote >
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Posted By: akula682(For some reason my "quote" button is not working)
It just wouldnt work, its working for me now. My computer at work is funny, the network screws things up.
Man, work computers suck. All they give you is Internet Explorer.
i have internet explorer
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Man, I love doing that.
Posted By: peergynt323General relativity states that a planet rotating on an axis has a greater gravitational pull than a planet not rotating. A black hole's additional gravitational pull comes from its kinetic energy, not its mass. Black holes are masses that rotate violently on an axis, and the more stuff they suck in, the more massive and energetic they get.
Also, I read earlier that all particles contain mass, but this is not true. Photons (electromagnetic waves) contain only energy and no mass. But energy does react to gravity the same way that mass does, so this is why light cannot escape a black hole.
This really doesn't explain anything.. You say that photons have no mass but they still react to black holes... you kind of contradicted yourself...
Posted By: GeogMan, work computers suck. All they give you is Internet Explorer.
Mine's pretty good about it... Since I'm IT. I just install what I want...
photons do have mass, ignore that elixer
Greetings. I am a new member, and have no intention of swaying the debate. I would, however, like to clear up a few cogent points that have been, perhaps, oversimplified.
While it is true that our sun would not spontaneously pass through all phases to become a black hole, due to its relatively small mass, but would rather stabilize at the white dwarf phase — a black hole can, in fact, exist with almost any amount of mass.
We routinely create black holes in our accelerator (I'm sorry, I cannot disclose the location or affiliation of our site, for obvious reasons) when conducting experiments in nuclear fusion (which is really not so difficult as everyone makes it out to be).
This brings up the next "simplification" that has been used in this discussion: "black hole" and "singularity" being used as synonyms.
Black holes go through a series of phases, like stars. As the density of a star, or of any collection of carefully selected atoms (again, I refrain from disclosing confidential state secrets) approaches a specific density, the orbit of the electrons are pulled very close to the nucleus. They become more like tennis balls rolling around on the surface of the volleyball, to reference an earlier post (although I would suggest you use "soccer ball" or "football" (not the American kind), as this more closely resembles the actual structure, I use tennis balls as a relatively accurate description as well). At this stage, light bends around the incredibly dense core but is not pulled in (think waves, not particles, as is evidenced by the color shift, e.g. wavelength). It is still not a black hole at this point.
This incredibly dense core is highly unstable (and leads to the complications of *sustained* nuclear fusion). The intense gravity causes the electrons to fuse into the nuclei (sometimes fusing into a neighboring nucleus, causing some very interesting aberrations). Photons are pulled into orbit around the proto-nuclei, replacing the electrons that had been there before, at which point it is officially a "black hole."
Next, the nuclei begin fusing with one another. The photons are still orbiting, but as the nuclei gain in mass and shrink in volume, the density of photons around a nucleus increases and their speed decreases, until finally the gravity of the nuclei is strong enough to overcome the orbit of the photons.
When the photons are fully overcome by gravity and fuse with the uber-nucleus, it is finally a "singularity."
The speed of this entire reaction is variable, depending on the matter being pulled into the black hole. It is theorized that some black holes can exist long enough to swallow an entire galaxy. Our black holes in the lab have so far been sustained for only… sorry, I can't share that with you either). Overall, I have been quite impressed with this discussion. Only the two "oversimplifications" stood out to me. Sorry for the interruption.
p.s. The fate of the singularity is anyone's guess. They are detectable only by their gravitational effect, and those made in our accelerator do not have a sufficient mass for this detection. It is theorized that they either float around, sucking things in, or simply blip out of existence. We have noticed things missing around the office lately.
http://www.space.com/scienceastronomy/astronomy/quasar_sidebar_010605.html