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SUBSIM: The Web's #1 resource for all submarine & naval simulations since 1997 |
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#16 | ||
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#17 |
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#18 | |||
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I agree that we can have no direct experience of external reality and any knowledge about an external, non-phenomenal/non-nominal reality requires a blind acceptance of several axioms needed to provide a foundation for any other useful "facts". I would also agree with you if you put it to me that many of the axioms that are taken most for granted (i.e. that our senses are effected by an ontological world or that space exists in three or more dimensions) are arbitrary and no more than beliefs as is anything that is built upon them as you pointed out. However, I claim there is one foundation we must take as given; our rationality: our ability to process information in a way that corresponds to reality to some extent. Of course, you could deny that we can take our rationality for granted or claim that it has no correspondence to reality, but to do so with a rational argument would be more than a little ironic, if not paradoxical. Given that we posses rationality and can apply it to our arbitrary or hypothesizes, we are able to determine which of those beliefs is most rational and therefore which corresponds best to reality. In this way our undeniable rationality gives more (although not, I concede, perhaps total) justification for the beliefs we hold wich stand up to it.
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#19 | |
Fleet Admiral
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abusus non tollit usum - A right should NOT be withheld from people on the basis that some tend to abuse that right. |
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#20 |
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#21 | |
Lucky Jack
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#22 |
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:rotfl: :rotfl: :rotfl:
Welcome abord SS107.9Mhz! |
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#23 | |
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![]() Just kidding, this discussion could go on forever and all we would do is to speak in circles. You're certainly entitled to your opinion/faith (or lack thereof) as am I. And a hearty welcome aboard to Great Old One Cthulhu ![]() |
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#24 | |
Legend of the Sea
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#25 | |||
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not make sense to deny our rationality. Not to deny some thing is certainly not to prove it. Hows that for a paradox? ![]() Quote:
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#26 |
Lieutenant
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Well, since the whole religious/metaphysical discussion has grown cold, how about a serious (not intending the previous discussion wasn't!) debate about what the hell this article means!
The other day I was watchingin a doc on TV , and at one point they said that even though black holes devoured all matter, simultaneously they we're "ejecting" subatomic particles, although very slowly, thus losing some of it's mass... Is it the same phenomenon here? |
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#27 |
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Oh and unfortunately turns out FSM wasn't the one in the foto, since is in germany visiting some relatives www.youtube.com/watch?v=vL7FcvEydqg
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#28 | |
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Black holes do eject gravitons (if they exist; we are waiting on the LHC for that one), but gravitons must be massless to fit in to our theories so far. Perhaps I am off track there and thee is another ejection, although I don't see how anything of mass can escape the >0 mass event horizon. But that is not what is happening in the formation mentioned in the article. In the article there is a black hole surrounded by a dense cloud of gas. As the hole sucks in the gas it excites pockets of particles like bubbles of steam in a boiling kettle. Because the excited pockets are less dense than the surrounding gas cloud they move away from the black hole. They can move away from the hole because they are no where near their event horizon(s). As they rush away from the hole they leave a trail of gas in their wake. These thin trails would normally diffuse into the surrounding gas and space as they moved back towards the hole, however they are held in place by a weak magnetic field as it takes more energy for the charged particles in the gas strands to move through changes in a magnetic field than it does for them to move through space with out a magnetic field. *edit* Err....I'm just repeating the article in the way I find easiest to understand here.
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#29 |
Lieutenant
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Okay, thank you Letum, I should've read the article more thouroughly, I was actually thinking about Hawking's radiation (the whole thing about subatomic particles ejecting from the blackhole itself, until it actually evaporates or "uncolapses" itself eventually), and it seems the article was talking about matter ejected in the regions adjacent to the black hole (in't that also refered to cosmic dragon or something of sorts?), not on the event horizon itself... So what we have here is a tenuous magnetic field isolating these filaments of cooled down matter (gas) from the accelarated heated cluster gas... but shouldn't the stringss actually be denser than their cluster gas counterpart?
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#30 | ||
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