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Path: ...!3.eu.feeder.erje.net!2.eu.feeder.erje.net!feeder.erje.net!feeder1-2.proxad.net!proxad.net!feeder1-1.proxad.net!cleanfeed4-a.proxad.net!nnrp3-2.free.fr!not-for-mail Newsgroups: sci.physics.relativity Subject: Re: The failure of the unified field theory means general relativity fails. From: nospam@de-ster.demon.nl (J. J. Lodder) Reply-To: jjlxa31@xs4all.nl (J. J. Lodder) Date: Sun, 7 Jul 2024 12:39:03 +0200 References: <693b1f71c994c268d60983eb81fc6aaa@www.novabbs.com> <rQzdO.250256$RcM6.3626@fx13.ams4> <17db55a7e5709ab7$1933$480477$c2365abb@news.newsdemon.com> <9283a49bcc091b1f621ebd566d650a38@www.novabbs.com> <fridnXzRMeebPOr7nZ2dnZfqlJ-dnZ2d@giganews.com> <6677e170$0$11724$426a74cc@news.free.fr> <GgOdnRiQkYyT3ef7nZ2dnZfqlJ-dnZ2d@giganews.com> <ldv7jcFpoddU9@mid.individual.net> <hRycnWu7NvCFvub7nZ2dnZfqnPidnZ2d@giganews.com> <667bc249$0$11713$426a74cc@news.free.fr> <fLmcnSyR2vOM7OH7nZ2dnZfqnPednZ2d@giganews.com> <6686f816$0$3283$426a74cc@news.free.fr> <5iudnThNzPCrnRr7nZ2dnZfqn_ednZ2d@giganews.com> <668842bc$0$7508$426a74cc@news.free.fr> <L4ecnY0vyKwbCBX7nZ2dnZfqnPudnZ2d@giganews.com> <6689a154$3$3899$426a34cc@news.free.fr> <hzWdnc3fgeyaYBT7nZ2dnZfqn_udnZ2d@giganews.com> Organization: De Ster Mail-Copies-To: nobody User-Agent: MacSOUP/2.8.5 (ea919cf118) (Mac OS 10.12.6) Lines: 145 Message-ID: <668a7047$0$11706$426a34cc@news.free.fr> NNTP-Posting-Date: 07 Jul 2024 12:39:03 CEST NNTP-Posting-Host: 213.10.137.58 X-Trace: 1720348743 news-4.free.fr 11706 213.10.137.58:56488 X-Complaints-To: abuse@proxad.net Bytes: 7424 Ross Finlayson <ross.a.finlayson@gmail.com> wrote: > On 07/06/2024 12:56 PM, J. J. Lodder wrote: > > Ross Finlayson <ross.a.finlayson@gmail.com> wrote: > > > >> On 07/05/2024 12:00 PM, J. J. Lodder wrote: > >>> Ross Finlayson <ross.a.finlayson@gmail.com> wrote: > >>> > >>>> On 07/04/2024 12:29 PM, J. J. Lodder wrote: > >>>>> Ross Finlayson <ross.a.finlayson@gmail.com> wrote: > >>>>> > >>>>>> On 06/26/2024 12:24 AM, J. J. Lodder wrote: > >>>>>>> Ross Finlayson <ross.a.finlayson@gmail.com> wrote: > >>>>>>> > >>>>>>>> On 06/24/2024 11:49 PM, Thomas Heger wrote: > >>>>>>>>> Am Dienstag000025, 25.06.2024 um 05:57 schrieb Tom Roberts: > >>>>>>>>> > >>>>>>>>>>>> Nope. YOU have imposed specific units onto the > >>>>>>>>>>>> formula/equation. The equation itself does not impose any > >>>>>>>>>>>> particular units on its variables and constants [@], it merely > >>>>>>>>>>>> requires that they be self-consistent. > >>>>>>>>>>>> > >>>>>>>>>>>> [@] There are many systems of units in common use. You > >>>>>>>>>>>> seem to think there is only one. > >>>>>>>>>>> > >>>>>>>>>>> A forteriori, any result that depends on any particular choice > >>>>>>>>>>> of units (or dimensions) is unphysical. > >>>>>>>>>> > >>>>>>>>>> Yes, of course. Good point. Similarly, any result that depends on > >>>>>>>>>> choice of coordinates is unphysical. > >>>>>>>>>> > >>>>>>>>> > >>>>>>>>> Not quite... > >>>>>>>>> > >>>>>>>>> Because velocity is 'relative' (relative in respect to what you > >>>>>>>>> regard as 'stationary'), kinetic energy is frame dependent. > >>>>>>>>> > >>>>>>>>> Since the used coordinate system defines 'stationary', you need a > >>>>>>>>> coordinate system for kinetic energy and that for practically > >>>>>>>>> everything else. > >>>>>>>>> > >>>>>>>>> TH > >>>>>>>> > >>>>>>>> When I hear "unphysical" I think it means "in the mathematical > >>>>>>>> representation and having no attachment to the physical > >>>>>>>> representation, in the system of units of the dimensional > >>>>>>>> analysis in the geometric setting". > >>>>>>>> > >>>>>>>> The dimensional analysis and attachment to geometry and > >>>>>>>> arithmetic usually is about the only "physical" there is. > >>>>>>> > >>>>>>> Dimensional analysis has nothing to do with physics. Dimensions > >>>>>>> are man-made conventions. Nothing would change if the whole > >>>>>>> concept had never been invented. > >>>>>>> > >>>>>>>> (Geometry and arithmetic and the objects of analysis and so on.) > >>>>>>>> > >>>>>>>> Things like "negative time" and "anti-deSitter space" are > >>>>>>>> unphysical, as are the non-real parts of complex analysis, > >>>>>>>> usually, though for example if you consider the Cartanian as > >>>>>>>> essentially different from the Gaussian-Eulerian, complex > >>>>>>>> analysis, then the Majorana spinor makes an example of a > >>>>>>>> detectable observable, though, one might aver that that's its > >>>>>>>> real part, in the hypercomplex. > >>>>>>> > >>>>>>> Well, yes, but that is another meaning of 'unphysical, > >>>>>>> > >>>>>>> Jan > >>>>>>> > >>>>>> > >>>>>> Yet, "conservation", i.e. "neither the destruction or creation", > >>>>>> of quantities, is exactly as according to the quantity its units. > >>>>> > >>>>> Conservation laws do no depend on units and dimensions in any way. > >>>>> > >>>>>> The, "dimensionless", when a usual sort of "dimensional analysis" > >>>>>> is the Buckingham-Pi approach, is a detachment of sorts from > >>>>>> the "dimensional analysis". > >>>>> > >>>>> Yes, standard dimensional analysis, > >>>>> > >>>>> Jan > >>>>> > >>>>> > >>>> > >>>> Oh, here that's called 'dimensionless analysis'. > >>> > >>> That's either an error or a silly neologism, > >>> > >>> Jan > >>> > > > > [Higgs irrelevancies] > > > >> Quantities, and their derivations, have implicit units, > >> about them. > > > > 'Implicit unit' is not a physical concept, > > > > Jan > > > > The mathematically implicit, which affects that functions > parameterized by particular other functions have particular > forms about their envelopes, boundaries, and singular points, > very much does get involved in physical concepts, > here particular the concept of kinetic force, > as a function of time, with regards to the infinitely-many > orders of acceleration, from infinity on down, with > respect to time, the laws of motion. > > The laws of motion are about the most usual "physical concept". > > When you ask what are the infinitely-many higher orders > of acceleration, or "what is change, at all", > then mathematics rather owes physics even a model of this, > to equip physics with a physical interpretation or "concept", > or what "is physical" or "real". > > The implicits in parameterization are a rather fundamental > concept in the differential analysis, and analysis altogether, > about the derivations that result, "quantities", algebraic > quantities, about that even though physics often enough > arrives at singularities at the edges or right outside the > bounds, that's because regular singular points like the > 0, 1, infinity of the hypergeometric are "real", mathematically. > > Then, most people's first non-standard function is the > Dirac delta, an infinite spike at the origin with area one. > Then figuring out how the infinitely many orders of > acceleration arrive at smooth starting and stopping, > is here considered with regards to "Zeno's swath", > and "a stop-derivative, a walk-integral, a pause-integral, > and a run-derivative". > > Also "Nessie's hump". > > > So, implicits, definitely do have a physical concept attached, > and force, is a function of time. Word salad: Yes. Clarity about 'Implied units': No, Jan