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Groups > sci.physics.relativity > #668153
| From | "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> |
|---|---|
| Newsgroups | sci.physics.relativity |
| Subject | Re: Hidden dimensions could explain where mass comes from |
| Date | 2026-01-10 13:12 -0800 |
| Organization | A noiseless patient Spider |
| Message-ID | <10jufba$3f488$1@dont-email.me> (permalink) |
| References | (3 earlier) <10jg1bb$rqna$1@gwaiyur.mb-net.net> <10jhcs0$39pgk$1@nntp.eternal-september.org> <10jhf6a$tl4u$1@gwaiyur.mb-net.net> <10jhgb7$3b0ui$1@nntp.eternal-september.org> <10jhidv$tp60$1@gwaiyur.mb-net.net> |
On 1/5/2026 3:45 PM, Thomas 'PointedEars' Lahn wrote: > Chris M. Thomasson wrote: >> On 1/5/2026 2:49 PM, Thomas 'PointedEars' Lahn wrote: >>> Chris M. Thomasson wrote: >>>> On 1/5/2026 1:47 AM, Thomas 'PointedEars' Lahn wrote: >>>>> You appear to be >>>>> referring to a definition of "dimension" that is used in science-fiction >>>>> and fantasy instead. >>>> [...] >>>> >>>> Ponder on it: >>>> >>>> (4th Dimension Explained By A High-School Student) >>>> https://youtu.be/eGguwYPC32I >>> >>> The argument that they are making about time (not being "the 4th dimension") >>> is pseudo-scientific and ridiculous, based on their ignorance of what it >>> means when we say "4th dimension" in that regard (which I just explained to >>> you in detail). Scientifically it is complete nonsense to say "every >>> dimension has time in it" as they do. >>> >>> *Their* ignorance is excusable, though, because they are just a high school >>> kid and are not expected to know about or understand pseudo-Riemannian >>> manifolds like spacetime (although they could have certainly have found >>> books that explained it at their level of understanding). Yours is not (as >>> I just explained it to you in detail). >> >> Say to explain a 3d point in time we need (x, y, z, t), t for time. > > First of all, watch this (which was suggested to me by YouTube when I > watched the video that you referred to): > > Dylan J. Dance: Physicist Reacts to 4th Dimension Explained By A High-School > Student > <https://youtu.be/0lE77mwB_Ww?si=mylGoFnwiIiRLOC4> > > This should clarify (as I already indicated) where that kid was right and > where they confused themselves and thus were confused. > > Then, as to your claim: > > Once you specify a fourth coordinate for a point, it is no longer a point > _of_ (NOT: in) a 3-dimensional space, but a point _of_ (NOT: in) a > 4-dimensional space. If the extra coordinate is time, then that space is > (for obvious reasons) called _spacetime_. The point has become an *event*. > > In physics we actually prefer to choose the time coordinate as the zeroth > coordinate (unless we use Euclidean time, as I explained before), and count > the spatial dimensions beginning with 1. This is more convenient in the > mathematical formulation and -- since we assume for various reasons that > there is only one (large) temporal dimension -- makes handling additional > spatial dimensions -- which according to string theory exist but are "too > small" to see as they are compactified -- easier to handle. So, as I > explained before, instead of (x, y, z, t) we write e.g. (x^0, x^1, x^2, x^3) > := (c t, x, y, z). > > We are using "c t" instead of "t" so that the temporal dimension(1) has the > same dimensions(2) as each spatial dimensions(1); but the "c" is frequently > dropped in the theory by setting c = 1 (called "notation in natural units"), > and that is equivalent to not doing that if we specify time in seconds, but > then lengths in e.g. light-seconds. > > (1) "dimension" as understood in mathematics > (2) "dimension" as understood in physics with regard to quantities > >> For a 4d point we need (x, y, z, w, t), t for time. > > Again, this is now a point _of_ (NOT: in) a 5-dimensional space. > >> t is in every dimension? > > No; (different from the sci-fi/fantasy meaning) a dimension is NOT the whole > of this construct, but merely a part. For example, the x-coordinate of that > point represents one dimension, the y-coordinate another, and so on. See > also the video referenced above. > Thanks. A bit busy lately. (x, y, z, t) can be dangerous/confusing because it does not mean a 4d space. but a 3d space with a time tag so to speak.
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Hidden dimensions could explain where mass comes from Anthk NM <anthk@disroot.org> - 2026-01-04 14:47 +0000
Re: Hidden dimensions could explain where mass comes from ram@zedat.fu-berlin.de (Stefan Ram) - 2026-01-04 15:41 +0000
Re: Hidden dimensions could explain where mass comes from Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-01-04 17:06 +0100
Re: Hidden dimensions could explain where mass comes from "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2026-01-04 15:08 -0800
Re: Hidden dimensions could explain where mass comes from Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-01-05 10:47 +0100
Re: Hidden dimensions could explain where mass comes from Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-01-05 07:59 -0800
Re: Hidden dimensions could explain where mass comes from Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-01-05 08:22 -0800
Re: Hidden dimensions could explain where mass comes from Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-01-05 22:43 +0100
Re: Hidden dimensions could explain where mass comes from Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-01-06 00:00 -0800
Re: Hidden dimensions could explain where mass comes from Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-01-06 09:28 -0800
Re: Hidden dimensions could explain where mass comes from Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-01-06 10:04 -0800
Re: Hidden dimensions could explain where mass comes from nospam@de-ster.demon.nl (J. J. Lodder) - 2026-01-06 10:43 +0100
Re: Hidden dimensions could explain where mass comes from Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-01-06 06:51 -0800
Re: Hidden dimensions could explain where mass comes from Thomas Heger <ttt_heg@web.de> - 2026-01-06 09:22 +0100
Re: Hidden dimensions could explain where mass comes from "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2026-01-05 14:10 -0800
Re: Hidden dimensions could explain where mass comes from Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-01-05 23:36 +0100
Re: Hidden dimensions could explain where mass comes from Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-01-05 23:45 +0100
Re: Hidden dimensions could explain where mass comes from Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-01-05 23:49 +0100
Re: Hidden dimensions could explain where mass comes from "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2026-01-05 15:09 -0800
Re: Hidden dimensions could explain where mass comes from "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2026-01-05 15:14 -0800
Re: Hidden dimensions could explain where mass comes from Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-01-06 00:47 +0100
Re: Hidden dimensions could explain where mass comes from "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2026-01-05 19:40 -0800
Re: Hidden dimensions could explain where mass comes from Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-01-06 17:29 +0100
Re: Hidden dimensions could explain where mass comes from Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-01-06 08:48 -0800
Re: Hidden dimensions could explain where mass comes from "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2026-01-06 17:29 -0800
Re: Hidden dimensions could explain where mass comes from "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2026-01-06 19:20 -0800
Re: Hidden dimensions could explain where mass comes from "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2026-01-08 23:20 -0800
Re: Hidden dimensions could explain where mass comes from "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2026-01-09 00:03 -0800
Re: Hidden dimensions could explain where mass comes from Thomas Heger <ttt_heg@web.de> - 2026-01-07 08:47 +0100
Re: Hidden dimensions could explain where mass comes from "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2026-01-07 11:46 -0800
Re: Hidden dimensions could explain where mass comes from Thomas Heger <ttt_heg@web.de> - 2026-01-08 09:03 +0100
Re: Hidden dimensions could explain where mass comes from Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-01-08 08:16 -0800
Re: Hidden dimensions could explain where mass comes from Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-01-09 02:55 +0100
Re: Hidden dimensions could explain where mass comes from Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-01-08 19:55 -0800
Re: Hidden dimensions could explain where mass comes from Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-01-08 22:34 -0800
Re: Hidden dimensions could explain where mass comes from Thomas Heger <ttt_heg@web.de> - 2026-01-10 09:24 +0100
Lagrangian mechanics (was: Hidden dimensions could explain where mass comes from) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-01-09 12:13 +0100
Re: Lagrangian mechanics Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-01-09 08:37 -0800
Re: Lagrangian mechanics Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-01-09 09:03 -0800
Re: Lagrangian mechanics Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-01-12 07:58 -0800
Re: Lagrangian mechanics nospam@de-ster.demon.nl (J. J. Lodder) - 2026-01-09 21:17 +0100
Re: Lagrangian mechanics Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-01-09 13:23 -0800
Re: Hidden dimensions could explain where mass comes from Thomas Heger <ttt_heg@web.de> - 2026-01-10 09:13 +0100
Re: Hidden dimensions could explain where mass comes from "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2026-01-08 20:13 -0800
Re: Hidden dimensions could explain where mass comes from Thomas Heger <ttt_heg@web.de> - 2026-01-10 09:19 +0100
Re: Hidden dimensions could explain where mass comes from "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2026-01-10 13:08 -0800
Re: Hidden dimensions could explain where mass comes from Thomas Heger <ttt_heg@web.de> - 2026-01-11 10:13 +0100
Re: Hidden dimensions could explain where mass comes from Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-01-06 00:45 +0100
Re: Hidden dimensions could explain where mass comes from "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2026-01-10 13:12 -0800
Re: Hidden dimensions could explain where mass comes from ram@zedat.fu-berlin.de (Stefan Ram) - 2026-01-04 17:07 +0000
Re: Hidden dimensions could explain where mass comes from Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-01-04 18:39 +0100
Re: Hidden dimensions could explain where mass comes from Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-01-04 18:41 +0100
Re: Hidden dimensions could explain where mass comes from Anthk NM <anthk@disroot.org> - 2026-01-05 20:11 +0000
Re: Hidden dimensions could explain where mass comes from ram@zedat.fu-berlin.de (Stefan Ram) - 2026-01-05 20:52 +0000
Re: Hidden dimensions could explain where mass comes from Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-01-05 22:36 +0100
Re: Hidden dimensions could explain where mass comes from nospam@de-ster.demon.nl (J. J. Lodder) - 2026-01-05 22:38 +0100
Re: Hidden dimensions could explain where mass comes from nospam@de-ster.demon.nl (J. J. Lodder) - 2026-01-05 22:03 +0100
Re: Hidden dimensions could explain where mass comes from Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-01-05 22:26 +0100
Re: Hidden dimensions could explain where mass comes from nospam@de-ster.demon.nl (J. J. Lodder) - 2026-01-05 22:55 +0100
Re: Hidden dimensions could explain where mass comes from ram@zedat.fu-berlin.de (Stefan Ram) - 2026-01-09 14:06 +0000
Re: Hidden dimensions could explain where mass comes from nospam@de-ster.demon.nl (J. J. Lodder) - 2026-01-09 21:31 +0100
Re: Hidden dimensions could explain where mass comes from nospam@de-ster.demon.nl (J. J. Lodder) - 2026-01-04 20:46 +0100
Re: Hidden dimensions could explain where mass comes from Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-01-04 13:54 -0800
Re: Hidden dimensions could explain where mass comes from Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-01-04 14:45 -0800
Re: Hidden dimensions could explain where mass comes from athel.cb@gmail.com <user12588@newsgrouper.org.invalid> - 2026-01-05 10:18 +0000
Re: Hidden dimensions could explain where mass comes from nospam@de-ster.demon.nl (J. J. Lodder) - 2026-01-05 18:32 +0100
Re: Hidden dimensions could explain where mass comes from Thomas Heger <ttt_heg@web.de> - 2026-01-06 09:06 +0100
Re: Hidden dimensions could explain where mass comes from nospam@de-ster.demon.nl (J. J. Lodder) - 2026-01-06 10:43 +0100
Re: Hidden dimensions could explain where mass comes from Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-01-06 06:50 -0800
Re: Hidden dimensions could explain where mass comes from nospam@de-ster.demon.nl (J. J. Lodder) - 2026-01-06 16:12 +0100
Re: Hidden dimensions could explain where mass comes from Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-01-06 07:47 -0800
Re: Hidden dimensions could explain where mass comes from ram@zedat.fu-berlin.de (Stefan Ram) - 2026-01-06 18:00 +0000
Re: Hidden dimensions could explain where mass comes from Richard Hachel <rh@tiscali.fr> - 2026-01-11 22:32 +0000
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