The mass sets the radius On Wed, Aug 15, 2012 at 1:39 PM, Chemical Engineer <cheme...@gmail.com>wrote:
> No, I am not making it up: > > A *charged black hole* is a black > hole<http://en.wikipedia.org/wiki/Black_hole> that > possesses electric charge <http://en.wikipedia.org/wiki/Electric_charge>. > Since the electromagnetic repulsion in compressing an electrically charged > mass is dramatically greater than the gravitational attraction (by about 40 > orders of magnitude), it is not expected that black holes with a > significant electric charge will be formed in nature. > > A charged black hole is one of three possible types of black holes that > could exist in the theory of gravitation called general > relativity<http://en.wikipedia.org/wiki/General_relativity>. > Black holes can be characterized by three (and only > three<http://en.wikipedia.org/wiki/No_hair_theorem>) > quantities, its > > - mass <http://en.wikipedia.org/wiki/Mass> *M* (called a Schwarzschild > black hole <http://en.wikipedia.org/wiki/Schwarzschild_black_hole> if > it has no angular momentum and no electric charge), > - angular momentum <http://en.wikipedia.org/wiki/Angular_momentum> *J* > (called > a Kerr black hole <http://en.wikipedia.org/wiki/Kerr_black_hole> if it > has no charge), and > - electric charge <http://en.wikipedia.org/wiki/Electric_charge> *Q* > (charged > black hole or Reissner-Nordström black > hole<http://en.wikipedia.org/wiki/Reissner-Nordstr%C3%B6m_black_hole> if > the angular momentum is zero or a Kerr-Newman black > hole<http://en.wikipedia.org/wiki/Kerr-Newman_black_hole> if > it has both angular momentum and electric charge). > > A special, mathematically-oriented article describes the Reissner-Nordström > metric <http://en.wikipedia.org/wiki/Reissner-Nordstr%C3%B6m_metric> for > a charged, non-rotating black hole. > > The solutions of Einstein's field > equation<http://en.wikipedia.org/wiki/Einstein%27s_field_equation> for > the gravitational field <http://en.wikipedia.org/wiki/Gravitational_field> of > an electrically charged point mass (with zero angular momentum) in empty > space was obtained in 1918 by Hans > Reissner<http://en.wikipedia.org/wiki/Hans_Reissner> > andGunnar Nordström <http://en.wikipedia.org/wiki/Gunnar_Nordstr%C3%B6m>, > not long after Karl > Schwarzschild<http://en.wikipedia.org/wiki/Karl_Schwarzschild> found > the Schwarzschild metric<http://en.wikipedia.org/wiki/Schwarzschild_metric> as > a solution for a point mass without electric charge and angular momentum. > > On Wed, Aug 15, 2012 at 1:16 PM, Harry Veeder <hveeder...@gmail.com>wrote: > >> On Wed, Aug 15, 2012 at 6:02 AM, Chemical Engineer <cheme...@gmail.com> >> wrote: >> >> > >> > Conductivity inversion effects in a metal wire/lattice. It is well >> > understood that a singularity carries charge, angular momentum and >> radius >> > like any other particle. It is also understood that when they evaporate >> they >> > emit charged particles. This can have a direct effect on the >> conductivity of >> > a metal. >> >> ah... so you are hypothesizing a particle with a set of special >> properties. >> Sometimes you refer to this particle by the name 'singularity' and >> other times you refer to it by the name 'gremlin'. >> >> Harry >> >> >> >> >> harry >> >> >
