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|    sci.physics.relativity    |    The theory of relativity    |    225,861 messages    |
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|    Message 223,946 of 225,861    |
|    Mikko to Thomas Heger    |
|    Re: The problem of simultaneity    |
|    15 Oct 25 12:32:24    |
      From: mikko.levanto@iki.fi              On 2025-10-15 07:54:47 +0000, Thomas Heger said:              > Am Dienstag000014, 14.10.2025 um 12:11 schrieb Mikko:       >> On 2025-10-13 05:59:58 +0000, Thomas Heger said:       >>       >>> Am Samstag000011, 11.10.2025 um 11:28 schrieb Richard Hachel:       >>>> Le 11/10/2025 à 09:13, Thomas Heger a écrit :       >>>>       >>>>> Einstein's relativity theory isn't relativistic at all.       >>>>>       >>>>> TH       >>>>       >>>> Yes.       >>>> It's relativistic.       >>>> But the problem is that it confuses everything, and it leads to       >>>> nonsense if you take it a step too far.       >>>> For example, Albert Einstein, who is considered a god, was unable to       >>>> understand the difference between the relativity of chronotropy       >>>> and the relativity of durations, which is what Dr. Richard Hachel, who       >>>> is considered a crank, does.       >>>> It's the history of humanity in real life.       >>>>       >>>> Let's take Langevin's traveler as an example; Hachel is very precise       >>>> about the terms. On the traveler's return, for example, his chronotropy       >>>> beats slower than that of the terrestrial traveler (as on the outward       >>>> journey), but his watch nevertheless runs faster.       >>>       >>>       >>> I would use other words, but actually had the same impression of       >>> Einstein's text.       >>>       >>> I meant that time is always an interval, while Einstein thought about       >>> time as linear and countable.       >>>       >>> But usually we use some starting point as reference, while often that       >>> isn't mentioned.       >>>       >>> What makes no sense, that are terms like 'bestimmte Ära' (certain era),       >>> because eras are not numbered.       >>>       >>> Also this concept of 'linear time' (embedded in 'big-bang theory') is       >>> most likely wrong.       >>>       >>> Einstein also used 'external time', which is similar to Newtons       >>> 'absolute time', while didn't use Poincare's 'local time'.       >>>       >>> So, in my opinion SRT isn't 'relativistic' enough.       >>       >> The problem with the word "time" (and many other words) is that in       >> Common Language it is used for many different meanings. When clearer       >> expression is desired different words should be used for different       >> meanings. Often, and in particular for discussing physics, it is       >> best to restrict the meaning of "time" when used as a nout to       >> expressions that can be used as an answer to the questions that ask       >> when someting happens, i.e., values of a time coordinate of an event.       >> The word "duration" can be used for difference of two times. But even       >> in physics discussions it is usually assumed that the participants can       >> understand from context which of the multiple meanings of "time" is       >> used.       >       > To treat time as a coordinate is a VERY bad idea!       >       > This is so, because with 'coordinates' we usually mean positions in space.              By "coordinates" we usually mean a tuple of (usually continuous) functions       from elements of a some spece (the physical space or spacetime or some       abstract mathematical space) or a part of one with the property that       the tuple of the values of those functions for one point identifies the       point.              --       Mikko              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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