Vanilla 1.1.9 is a product of Lussumo. More Information: Documentation, Community Support.

  1.  
    Why are globular clusters stable for billions of years? They don't rotate, the stars aren't orbiting a center of mass, the stars aren't infalling to that center and they aren't fleeing it either. Yet they are densely packed with big old stars.
    •  
      CommentAuthorTrim
    • CommentTimeApr 26th 2019
     
    Because some predictions have gone screwy.
  2.  
    Because we are new at this game
    •  
      CommentAuthoroak
    • CommentTimeApr 27th 2019
     
    Posted By: alsetalokinWhy are globular clusters stable for billions of years? They don't rotate, the stars aren't orbiting a center of mass, the stars aren't infalling to that center and they aren't fleeing it either. Yet they are densely packed with big old stars.

    My understanding is that the clusters do rotate, and the stars do orbit the center of mass (although maybe in an erratic way, given the proximity of other stars), and the stars do infall somewhat toward the center and then zip out the other side, all in accordance with Newton. Why do you say otherwise?
  3.  
    Don't go to the woo side Luke
  4.  
    •  
      CommentAuthorTrim
    • CommentTimeMay 3rd 2019
     
    Weird Black Hole Is Shooting Out Wobbly Jets Because It's Dragging Spacetime.

    https://www.sciencealert.com/extraordinary-black-hole-shoots-out-wobbling-jets-as-it-devours-a-star
  5.  
    woo, wonky, weird and wobbly
    •  
      CommentAuthorTrim
    • CommentTimeMay 3rd 2019
     
    Not woo, just the other things.
    •  
      CommentAuthorTrim
    • CommentTimeMay 3rd 2019
     
    We May Have Detected Gravitational Waves From a Black Hole Devouring a Neutron Star.

    https://www.sciencealert.com/this-might-be-the-first-gravitational-wave-detection-from-a-black-hole-devouring-a-neutron-star
  6.  
    When all you have are quarks... make quark soup!
    •  
      CommentAuthorTrim
    • CommentTimeMay 12th 2019
     
    Dark matter is not enough.

    https://m.youtube.com/watch?v=GFxPMMkhHuA

    Recommended viewing.
  7.  
    Listening to that guy makes me wince
    •  
      CommentAuthorTrim
    • CommentTimeMay 24th 2019
     
    How an Inflating Universe Could Create a Multiverse.

    https://www.space.com/inflating-universe-could-create-multiverse.html
  8.  
    As I have tried to explain before. When the local density of matter becomes small enough, space spontaneously decays. If the rate of decrease of the local density of matter is great enough, you get more than a little bit of spatial decay, you get a more or less big bang, hence another expanding island universe with all it entails. There are local spots where d(density)/dt is large enough for local spatial decay of order very small, and we see this in deep space as active galaxies with anomalous redshifts, or as I like to call them Arpsters. This local "little bang" phenomenon is caused by certain types of binary supermassive black hole associations, which themselves represent the ancient cores of collided galaxies.

    Don't you remember your basic Spatial Decay problems from God School?
    •  
      CommentAuthoroak
    • CommentTimeMay 24th 2019
     
    It's starting to come back to me.
    •  
      CommentAuthorAngus
    • CommentTimeMay 24th 2019
     
    Posted By: alsetalokinWhen the local density of matter becomes small enough, space spontaneously decays


    Whoa there. If space decays then there would be less (fewer?) space and the density would go back up. Things would quickly balance out. You are describing the Homeostatic Universe which is always at the setpoint of matter density.
  9.  
    Exackly. Local density can be high or very low, but over significant volume and duration the Universe is homeostatic. Not quite "steady state" but more like an infinite pan of water, boiling away because its vapour pressure is greater than the local ambient pressure.
    Black holes are the ultimate drains and also the ultimate wellsprings.

    The real question is what underlies the pan. Into what does space expand, when exactly did duration begin, will the underlying density ever be depleted, what underlies the underlying density, etc.

    It's densities all the way down.
  10.  
    It's circular
    •  
      CommentAuthoraber0der
    • CommentTimeMay 25th 2019
     
    Turtular.