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  • File :1239283696.jpg-(245 KB, 960x720, 1238920569691.jpg)
    245 KB Anonymous 04/09/09(Thu)09:28 No.4043228  
    Alright /g/, someone clear it up for me. I've looked it up and there seems to be conflicting views on black holes. I'm not a physicsfag, but I'd like to know a little more about this.

    Light is unable to escape from a black hole because its escape velocity is faster than the speed of light -- how does this actually work? I used to imagine that if a black hole is infinitely dense, it would have an infinitely deep space-time indentation, which leads to light being unable to escape, but that is clearly the wrong way to visualize it.

    So are they infinitely dense due to singularities (if they exist)?

    Light bends towards the space-time curvature which gravity creates, but how does it behave with relation to a black hole?
    >> Anonymous 04/09/09(Thu)09:30 No.4043245
    You have obviously read a lot on the subject.
    If you don't get it now you probably never will
    >> Anonymous 04/09/09(Thu)09:33 No.4043269
    >>4043245
    As a matter of fact, I haven't. It's a sideline interest I partake in from time to time, but this unresolved issue is eating me inside.
    >> Anonymous 04/09/09(Thu)09:34 No.4043273
    this is /g/...
    >> Anonymous 04/09/09(Thu)09:36 No.4043281
         File :1239284190.jpg-(44 KB, 960x720, 1238878485313.jpg)
    44 KB
    >>4043228
    What the fuck have you done to mai waifu you bastard?
    >> Anonymous 04/09/09(Thu)09:37 No.4043292
    >>4043281
    Fulfilling her desire to have guys jizz all over her face? Fuck yeah, slut.
    >> !nIpaaAA.Ko 04/09/09(Thu)09:38 No.4043296
    >>4043228
    Stick to your day job
    >> Anonymous 04/09/09(Thu)09:39 No.4043300
    >infinitely dense
    Absolute nonsense. They are extremely massive, yes, but even when the entire universe was the size of a grapefruit, it wasn't "infinitely dense".
    >> Anonymous 04/09/09(Thu)09:52 No.4043388
    >>4043300
    >The star eventually collapses to the point of zero volume and infinite density, creating what is known as a " singularity ".
    >At the center of a black hole lies the singularity, where matter is crushed to infinite density...a black hole's mass becomes entirely compressed into a region with zero volume.
    >> Anonymous 04/09/09(Thu)09:55 No.4043406
    >>4043388
    hmm thats a bit meh - all you can really say for definite is that it collapses beyond its schwartzchild radius - beyond that the physics starts to get iffy.
    >> Anonymous 04/09/09(Thu)09:59 No.4043437
    >>4043245

    oh. hi there, linux user.
    >> Anonymous 04/09/09(Thu)10:03 No.4043466
    http://www.amazon.com/Brief-History-Time-Stephen-Hawking/dp/0553380168

    also, who is that young hussy in the OP?
    >> Anonymous 04/09/09(Thu)11:18 No.4043890
    >>4043466

    my waifu
    >> /g/ - !Lolicont/Q 04/09/09(Thu)11:21 No.4043903
    She's a whore.
    >> Anonymous 04/09/09(Thu)11:28 No.4043924
    >>4043903

    fuck you, your tsumugi and DEM EYEBROWS
    >> Anonymous 04/09/09(Thu)11:31 No.4043937
    >>4043466
    >also, who is that young hussy in the OP?

    Mio. A looks-good-but-terribly-generic character from an anime that appeals to the lowest common denominator. She's all the rage on /a/ for the current anime season.
    >> Anonymous 04/09/09(Thu)11:34 No.4043946
    >>4043937
    >i only watch deep anime HURR im so intellectual XD
    >> Anonymous 04/09/09(Thu)11:35 No.4043956
    >>4043937

    How old is she supposed to be in the Anime? The younger the better my fantasies will be.
    >> Anonymous 04/09/09(Thu)11:40 No.4043993
    The bitch is awesome.
    >> Anonymoose 04/09/09(Thu)11:48 No.4044042
    Think of black holes as a long narrow slide, from far away your fine but as soon you get close to the center and pass the event horizon you get pulled in by the curvature of the slide and slide down getting stretched as you go. As for what happens inside of a black hole is still unknown. Singularities are not bound by the laws of physics.
    >> Anonymous 04/09/09(Thu)11:48 No.4044047
    >>4043946

    As a self-respecting human being, I refuse to lower my self to watch a show with the sole appealing aspect of MOE MOE (but not enough dignity to lurk 4chan; deal with it). Think about it, why ARE you watching it?

    >>4043956

    Err probably 15-17? That's the typical age for generic school shows such as K-ON.
    >> Anonymous 04/09/09(Thu)11:54 No.4044076
    >>4044042
    They are bound by the laws of physics. Our laws are just incomplete.
    >> Anonymous 04/09/09(Thu)12:00 No.4044117
    >>4043228
    The question makes no sense. It's just like a frog falling into a bucket that it can't jump out of. Nothing particularly surprising except that it's happening to light instead of a frog.
    >> Anonymous 04/09/09(Thu)12:25 No.4044298
    >>4044117
    But is it a bottomless bucket? If it isn't, what is the correlation between the escape velocity and the depth of the hole, since light does not lose energy from traveling?
    >> Anonymous 04/09/09(Thu)13:04 No.4044565
    >>4044298
    Bottomless bucket. From what I've seen on the discovery channel.
    >> Anonymous 04/09/09(Thu)13:11 No.4044626
    >>4044565
    what show was it?
    >> Anonymous 04/09/09(Thu)13:12 No.4044631
    THIS THREAD IS FULL OF KNOWLEDGE
    >> Anonymous 04/09/09(Thu)13:24 No.4044689
    >>4044298

    As an object becomes more massive, the gravitational field increases. As a result, the object's escape velocity will become more difficult to reach. With black holes, they just have become so massive that the escape velocity has passed 186k miles per second. Nothing terribly significant about them.

    This is assuming singularities are wrong, in which case they're just hypermassive objects. Since objects, (and subatomic particles), cannot occupy the same space at the same time, they might just be creating higher elements under all that pressure.

    OR
    (RELATIVELY NEW DISCUSSION IN SCIENTIFIC COMMUNITY ALERT)

    Singularity theory is correct and black holes are the missing link that forwards the multiverse, (at least in our universe), and creates microuniverses within the singularity.
    >> Anonymous 04/09/09(Thu)13:34 No.4044742
    >>4044689
    Thanks, that cleared up plenty. It makes more sense now that I see them as two separate theories about a yet fully understood phenomenon.
    >> Anonymous 04/09/09(Thu)13:40 No.4044782
    >>4044047
    eh i watched rozen maiden and spice and wolf for doll joints and dat tail respectively.
    >> Anonymous 04/09/09(Thu)13:42 No.4044790
    >>4043228
    im tempted to post this in the /a/ thread about the show
    >> Sudo !OMLoliFag6 04/09/09(Thu)13:43 No.4044791
         File :1239298994.jpg-(19 KB, 319x238, 1225257352637.jpg)
    19 KB
    >>4044782
    >> Anonymous 04/09/09(Thu)13:44 No.4044795
    >>4044742
    Black holes have finite mass... a little more massive than the sun at least. But they have 0 size.
    >> Anonymous 04/09/09(Thu)13:46 No.4044807
         File :1239299190.jpg-(472 KB, 800x1780, mio.jpg)
    472 KB
    >> Anonymous 04/09/09(Thu)13:52 No.4044850
    >>4044689
    but light has no mass, and although it is influenced by gravity in the sense that it may bend/curve around spacetime fluctuations, it's a little mind-boggling to imagine it being constrained by the force of gravity, to the extent that there is even an escape velocity for it.
    >> Anonymous 04/09/09(Thu)13:54 No.4044857
    >>4044795
    Then it's density is- HOLY SHIT THAT'S DIVIDING BY ZERO.
    >> Anonymous 04/09/09(Thu)13:56 No.4044870
    >>4044790
    whatever the fuck for?
    >> Alcoholic !swe/yyamDk 04/09/09(Thu)13:59 No.4044881
    >>4044795
    No, they don't have 0 size. They have finite mass compressed to an extremely small, non-zero size. l2physics
    >> Anonymous 04/09/09(Thu)14:00 No.4044884
    >escape velocity
    >black hole

    What? Once an object crosses the event horizon, it's done for.
    >> Anonymous 04/09/09(Thu)14:01 No.4044892
    >>4044881
    In the singularity theory, they have 0 volume and consequently are infinitely dense.
    >> Anonymous 04/09/09(Thu)14:01 No.4044893
    >>4044807
    When I saw that picture, I thought to myself 'Mmmm sexah'...

    GODDAMNIT YOU FAGS ARE GETTING TO ME WITH YOUR ANIMU WEABO FAGGOT SHIT. FUCK YOU.
    >> Anonymous 04/09/09(Thu)14:03 No.4044908
    >>4044884
    exactly their escape velocity is greater than c so not even light can escape
    >>4044870
    trolling?
    >> Anonymous 04/09/09(Thu)14:04 No.4044910
    >>4044884
    It's done for BECAUSE it doesn't exceed the escape velocity, you dumb nigger.
    >> Alcoholic !swe/yyamDk 04/09/09(Thu)14:04 No.4044912
    >>4044892
    Assuming that theory is correct, yes. It's a new theory, far less accepted than the hypermassive objects theory.

    >>4044884
    Unless you can travel faster than light... oh.
    >> Anonymous 04/09/09(Thu)14:05 No.4044915
         File :1239300332.jpg-(38 KB, 505x421, 1237804914051.jpg)
    38 KB
    >>4044893
    ...what?



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