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Groups > sci.physics > #567069
| From | moroney@world.std.spaamtrap.com (Michael Moroney) |
|---|---|
| Newsgroups | sci.physics |
| Subject | Re: How black holes saved relativity |
| Date | 2016-03-31 23:09 +0000 |
| Organization | The World : www.TheWorld.com : Since 1989 |
| Message-ID | <ndkan5$rih$1@pcls7.std.com> (permalink) |
| References | (2 earlier) <da36051f-15c6-4cf1-bbe8-11f0b0d3fbea@googlegroups.com> <ndjcdf$g0o$4@pcls7.std.com> <e3b8d48e-9723-4e7e-a6bf-abb6fb36d41a@googlegroups.com> <ndjkvi$2qv$1@gioia.aioe.org> <77e4534e-4646-4e58-893f-1234d89433fb@googlegroups.com> |
john <johnsefton288@gmail.com> writes: >Odd said >"The fact that things orbit around it, subject to gravity. >If there were no matter staying in the black hole, there would be no >source of gravity to make them go around. " >Odd, just because you've always >seen things work this way doesn't >mean they always do. >Nobody has seen inside a BH- nobody >knows if ANYTHING is inside. Yes we do. We know there is matter inside, and how much, when a black hole candidate affects nearby stars. The best example is Sagittarius A* at the center of the Milky Way, which has several stars orbiting it. These stars are being tracked, and from Kepler's Laws we can tell they are orbiting *something* that is about 4 million solar masses yet is very small (otherwise the stars would hit it) and quite invisible. If not a massive black hole, what is it?
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How black holes saved relativity Sam Wormley <swormley1@gmail.com> - 2016-03-30 15:19 -0500
Re: How black holes saved relativity "hanson" <hanson@quick.net> - 2016-03-30 21:00 -0700
Re: How black holes saved relativity john <johnsefton288@gmail.com> - 2016-03-31 02:43 -0700
Re: How black holes saved relativity "hanson" <hanson@quick.net> - 2016-03-31 06:27 -0700
Re: How black holes saved relativity HVAC <mr.hvac@gmail.com> - 2016-03-31 06:41 -0700
Re: How black holes saved relativity moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-03-31 14:32 +0000
Re: How black holes saved relativity john <johnsefton288@gmail.com> - 2016-03-31 08:01 -0700
Re: How black holes saved relativity john <johnsefton288@gmail.com> - 2016-03-31 08:08 -0700
Re: How black holes saved relativity HVAC <mr.hvac@gmail.com> - 2016-03-31 08:27 -0700
Re: How black holes saved relativity moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-03-31 15:52 +0000
Re: How black holes saved relativity Odd Bodkin <bodkinodd@gmail.com> - 2016-03-31 11:58 -0500
Re: How black holes saved relativity john <johnsefton288@gmail.com> - 2016-03-31 15:34 -0700
Re: How black holes saved relativity Odd Bodkin <bodkinodd@gmail.com> - 2016-03-31 17:57 -0500
Re: How black holes saved relativity moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-03-31 23:09 +0000
Re: How black holes saved relativity vishnushelat@gmail.com - 2016-03-31 12:37 -0700
Re: How black holes saved relativity "hanson" <hanson@quick.net> - 2016-03-31 14:01 -0700
Re: How black holes saved relativity HVAC <mr.hvac@gmail.com> - 2016-03-31 15:24 -0700
Re: How black holes saved relativity "hanson" <hanson@quick.net> - 2016-03-31 16:46 -0700
Re: How black holes saved relativity xxein1@att.net - 2016-03-31 17:34 -0700
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