On Sat, Jan 25, 2014 at 12:02 PM, meekerdb <[email protected]> wrote:
> On 1/25/2014 5:29 AM, Edgar L. Owen wrote: > >> Brent, >> >> We have to be careful to be precisely accurate here. >> >> 1. The structure of a black hole is not just a singularity inside an >> event horizon. The entire interior of a black hole is not a singularity. >> The singularity exists only at the very center of a black hole, there is >> plenty of volume between the event horizon and the singularity. >> > > Actually there is plenty of *time* between the horizon and the singularity > - if the black hole is large enough. The singularity isn't at a different > place, it's in the future, once you're inside the event horizon. > At least for a spherically symmetric black hole, the GR solution indicates that the time dimension becomes the radial dimension of the black hole. Thus time vanishes inside the event horizon of a spherical black hole. > > >> 2. We have to clearly distinguish gravity WAVES from gravity itself. >> Gravity waves are NOT gravity, they are small fluctuations in gravity. >> > > Of course they are small warps in space. But warps in space *are* gravity. > > >> So yes, gravity WAVES can radiate away, but the gravitational force >> itself remains unless the mass that produces it vanishes. >> >> If, as you propose, mass vanishes inside a black hole (no one else >> believes this BTW) black holes would produce NO gravitational effect.... >> > > Of course matter doesn't vanish just because it crosses the event horizon. > But so far as the classical theory goes it vanishes at the singularity. > It takes some time to get to the singularity, but it's relatively short > for a black hole that forms from a star. > > But even though the mass vanishes the black remains and warps space around > it. Which everybody who ever solved Einsteins equations for the > Schwarzschild solution knows. It's a *vacuum* solution. There's no matter > in it. It is because Einsteins equations are non-linear gravity acts on > itself and so can act as it's own source of gravity. > > > Brent > > -- > You received this message because you are subscribed to the Google Groups > "Everything List" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/everything-list. > For more options, visit https://groups.google.com/groups/opt_out. > -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
