Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > sci.physics.relativity > #390011
| From | Sylvia Else <sylvia@not.at.this.address> |
|---|---|
| Newsgroups | sci.physics.relativity |
| Subject | Re: GR cannot |
| Date | 2016-08-15 14:55 +1000 |
| Message-ID | <e1d0a8FrtbvU1@mid.individual.net> (permalink) |
| References | (4 earlier) <4d637f82-f3a3-4b66-a709-00fa549aa449@googlegroups.com> <e1aanfF8h3oU1@mid.individual.net> <575d4527-d5c5-4d79-b00c-d66fa5f844c2@googlegroups.com> <e1coelFqbqmU1@mid.individual.net> <7011a640-9658-4832-ac8b-7a94e9322d6e@googlegroups.com> |
On 15/08/2016 1:41 PM, Peter Riedt wrote: > On Monday, August 15, 2016 at 10:41:30 AM UTC+8, Sylvia Else wrote: >> On 14/08/2016 6:28 PM, Peter Riedt wrote: >>> On Sunday, August 14, 2016 at 12:34:59 PM UTC+8, Sylvia Else wrote: >>>> On 13/08/2016 1:51 PM, Peter Riedt wrote: >>>>> On Saturday, August 13, 2016 at 10:02:04 AM UTC+8, Sylvia Else wrote: >>>>>> On 13/08/2016 10:26 AM, Peter Riedt wrote: >>>>>>> On Friday, August 12, 2016 at 8:17:21 PM UTC+8, Odd Bodkin wrote: >>>>>>>> On 8/11/2016 9:31 PM, Peter Riedt wrote: >>>>>>>>> GR cannot >>>>>>>>> >>>>>>>>> General relativity cannot predict or calculate anything, specifically the >>>>>>>>> attributes G, g, M, m, GM, r, v, t and others of solar objects. >>>>>>>>> >>>>>>>> >>>>>>>> G, M, m are not predicted by the theory. >>>>>>>> But the trajectory parameters r, v, t are. >>>>>>>> >>>>>>>> >>>>>>>> -- >>>>>>>> Odd Bodkin --- maker of fine toys, tools, tables >>>>>>> >>>>>>> If r=50000km what is the corresponding v under GR? >>>>>>> >>>>>> >>>>>> That's insufficiently specified. You need to specify m, and then specify >>>>>> r and v as vectors at some point in time. GR then gives you v and r, >>>>>> again as vectors, for any other time. >>>>>> >>>>>> Sylvia. >>>>> >>>>> My gravity theory can, GR cannot. >>>>> >>>> >>>> If I position myself 50,000km from the centre of the sun, then I'll be >>>> inside it. Not helpful. >>>> >>>> Let's say 50 million km from the centre, and at the instant in question, >>>> not moving relative to the sun. >>>> >>>> Now I can project an object at an arbitrary velocity in an arbitrary >>>> direction. One of three things can happen. >>>> >>>> a) The object disappears into interstellar space, never to be seen again. >>>> >>>> b) It follows a trajectory that impacts the sun. >>>> >>>> c) It orbits the sun along some ellipse, repeatedly returning to where I am. >>>> >>>> Clearly there are very many different velocities that can result in (c), >>>> so no valid theory can possibly give a single velocity, and any theory >>>> that purports to do so, such as yours, apparently, has to be wrong. >>>> >>>> Sylvia. >>> >>> Let's define specific parameters: An object is in orbit around the sun at say 50,000,000km or any other distance. My gravity theory can predict in what time t it will return to its original position. >>> >>> I am still waiting on Bod to tell me how GR can predict or calculate r, v, t of solar objects. I am of the opinion he can't. >>> >> >> I expect he can. >> >> For this situation, with an object with a mass small compared with that >> of the sun, GR reduces to Kepler's third law. Since your orbit is at a >> constant distance, it is circular, and the semi-major axis is 50,000,000km. >> >> Sylvia. > > You are basically correct but the orbit is not necessarily circular and Bod's claim is refuted; GR cannot predict/calculate t nor v or r. > If the orbit is not necessarily circular, then your statement that the object is in orbit around the sun at 50,000,000km makes no sense. Since GR reduces to Kepler's third law, and that law gives t, it follows GR tives t. The value of v is obtained by simple geometry (distance over time). I don't know what you intend by saying that it doesn't give r - r is an input to the calculation. Sylvia.
Back to sci.physics.relativity | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
GR cannot Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-11 19:31 -0700
Re: GR cannot Odd Bodkin <bodkinodd@gmail.com> - 2016-08-12 07:17 -0500
Re: GR cannot Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-12 17:26 -0700
Re: GR cannot Sylvia Else <sylvia@not.at.this.address> - 2016-08-13 12:01 +1000
Re: GR cannot Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-12 20:51 -0700
Re: GR cannot Odd Bodkin <bodkinodd@gmail.com> - 2016-08-13 11:45 -0500
Re: GR cannot Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-13 17:32 -0700
Re: GR cannot Odd Bodkin <bodkinodd@gmail.com> - 2016-08-15 09:33 -0500
Re: GR cannot Sylvia Else <sylvia@not.at.this.address> - 2016-08-14 14:34 +1000
Re: GR cannot Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-14 01:28 -0700
Re: GR cannot Sylvia Else <sylvia@not.at.this.address> - 2016-08-15 12:41 +1000
Re: GR cannot Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-14 20:41 -0700
Re: GR cannot Sylvia Else <sylvia@not.at.this.address> - 2016-08-15 14:55 +1000
Re: GR cannot Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-14 22:15 -0700
Re: GR cannot Sylvia Else <sylvia@not.at.this.address> - 2016-08-15 16:04 +1000
Re: GR cannot Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-14 23:50 -0700
Re: GR cannot Sylvia Else <sylvia@not.at.this.address> - 2016-08-15 17:03 +1000
Re: GR cannot Poutnik <poutnik4nntp@gmail.com> - 2016-08-15 13:23 +0200
Re: GR cannot Maciej Woźniak <mlwozniak@wp.pl> - 2016-08-15 15:15 +0200
Re: GR cannot Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-15 06:42 -0700
Re: GR cannot Poutnik <poutnik4nntp@gmail.com> - 2016-08-15 20:26 +0200
Re: GR cannot Maciej Woźniak <mlwozniak@wp.pl> - 2016-08-15 22:05 +0200
Re: GR cannot Poutnik <poutnik4nntp@gmail.com> - 2016-08-16 00:19 +0200
Re: GR cannot mlwozniak@wp.pl - 2016-08-15 22:56 -0700
Re: GR cannot JanPB <filmart@gmail.com> - 2016-08-16 14:31 -0700
Re: GR cannot Gary Harnagel <hitlong@yahoo.com> - 2016-08-16 14:52 -0700
Re: GR cannot Maciej Woźniak <mlwozniak@wp.pl> - 2016-08-17 08:33 +0200
Re: GR cannot JanPB <filmart@gmail.com> - 2016-08-17 11:28 -0700
Re: GR cannot mlwozniak@wp.pl - 2016-08-17 23:39 -0700
Re: GR cannot Odd Bodkin <bodkinodd@gmail.com> - 2016-08-15 10:06 -0500
Re: GR cannot Odd Bodkin <bodkinodd@gmail.com> - 2016-08-15 10:04 -0500
Re: GR cannot Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-15 09:29 -0700
Re: GR cannot Odd Bodkin <bodkinodd@gmail.com> - 2016-08-15 11:44 -0500
Re: GR cannot Odd Bodkin <bodkinodd@gmail.com> - 2016-08-15 11:57 -0500
Re: GR cannot Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-15 10:08 -0700
Re: GR cannot Odd Bodkin <bodkinodd@gmail.com> - 2016-08-15 12:15 -0500
Re: GR cannot Poutnik <poutnik4nntp@gmail.com> - 2016-08-15 20:29 +0200
Re: GR cannot Odd Bodkin <bodkinodd@gmail.com> - 2016-08-15 09:40 -0500
Re: GR cannot Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-15 09:58 -0700
Re: GR cannot Odd Bodkin <bodkinodd@gmail.com> - 2016-08-15 12:05 -0500
Re: GR cannot Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-15 10:11 -0700
Re: GR cannot Odd Bodkin <bodkinodd@gmail.com> - 2016-08-16 13:27 -0500
Re: GR cannot Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-16 20:16 -0700
Re: GR cannot Tom Roberts <tjroberts137@sbcglobal.net> - 2016-08-16 23:10 -0500
Re: GR cannot Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-16 22:48 -0700
Re: GR cannot Odd Bodkin <bodkinodd@gmail.com> - 2016-08-18 13:52 -0500
Re: GR cannot Odd Bodkin <bodkinodd@gmail.com> - 2016-08-15 12:09 -0500
Re: GR cannot Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-15 10:16 -0700
Re: GR cannot Odd Bodkin <bodkinodd@gmail.com> - 2016-08-16 13:27 -0500
Re: GR cannot Odd Bodkin <bodkinodd@gmail.com> - 2016-08-13 11:42 -0500
Re: GR cannot Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-13 17:28 -0700
Re: GR cannot Odd Bodkin <bodkinodd@gmail.com> - 2016-08-15 09:31 -0500
Re: GR cannot Peter Riedt <riedt1@yahoo.co.uk> - 2016-08-15 09:33 -0700
Re: GR cannot Odd Bodkin <bodkinodd@gmail.com> - 2016-08-15 11:52 -0500
Re: GR cannot Poutnik <poutnik4nntp@gmail.com> - 2016-08-16 00:10 +0200
csiph-web