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Path: ...!2.eu.feeder.erje.net!feeder.erje.net!proxad.net!feeder1-2.proxad.net!usenet-fr.net!pasdenom.info!from-devjntp Message-ID: <t7HDa-LC8zhLQn7dL8gCWtJryP0@jntp> JNTP-Route: nemoweb.net JNTP-DataType: Article Subject: Re: the notion of relativity of simultaneity References: <t5AySA2aWT46Ra7AsAZqm8Hc3GM@jntp> <Eo6FW0ebVNtRJTtSEACnwT1LEhc@jntp> <lm1kgtFln9eU4@mid.individual.net> <eSz70Yi5kNfROFnEqcEhT63f9RQ@jntp> <3_55BPOgqiL20L5rUo2xG_Vp8ZQ@jntp> <lm5j7fFaceeU1@mid.individual.net> <ENzxkMbrs76KQ5-SwANAkYb5npU@jntp> <17fab9157646dc09$117312$844270$c2365abb@news.newsdemon.com> Newsgroups: sci.physics.relativity JNTP-HashClient: xRly0Yf5DGoNb05Fe_GXAZLGhT4 JNTP-ThreadID: M03ir3sQnaKnoNUOGTo8wLgKNI8 JNTP-Uri: https://www.nemoweb.net/?DataID=t7HDa-LC8zhLQn7dL8gCWtJryP0@jntp User-Agent: Nemo/1.0 JNTP-OriginServer: nemoweb.net Date: Wed, 02 Oct 24 19:26:09 +0000 Organization: Nemoweb JNTP-Browser: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/115.0 Injection-Info: nemoweb.net; posting-host="6178dcde0cf0d31cc4805aaec09e72081127b371"; logging-data="2024-10-02T19:26:09Z/9045567"; posting-account="190@nemoweb.net"; mail-complaints-to="julien.arlandis@gmail.com" JNTP-ProtocolVersion: 0.21.1 JNTP-Server: PhpNemoServer/0.94.5 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-JNTP-JsonNewsGateway: 0.96 From: Python <python@not-formail.invalid> Bytes: 3234 Lines: 60 Le 02/10/2024 à 21:21, Maciej Wozniak a écrit : > W dniu 02.10.2024 o 21:00, Python pisze: >> Le 02/10/2024 à 20:54, Thomas Heger a écrit : >>> Am Dienstag000001, 01.10.2024 um 14:54 schrieb Python: >>> >>>>>>>> But in a relativistic universe where each observer has his own >>>>>>>> hyperplane of present time? >>>>>>> >>>>>>> What do you mean by "hyperlane"? >>>>>> >>>>>> The set of all points, which could be connected to an events by a >>>>>> hypothetical signal with infinite velocity builds actually a three >>>>>> dimensional space. >>>>>> >>>>>> In RT-lingo, this is a hyperplane (of the present). >>>>>> >>>>>> Imagine you would 'flatten' space to a 2-dimensional sheet. >>>>>> >>>>>> >>>>>> TH >>>>>> >>>>>>> ... >>>>> >>>>> >>>>> Why do you answer him? You can see that he is crazy. >>>>> >>>>> He claims to be a great expert in relativity, but he is incapable of >>>>> understanding what a simple "hyperplane" is. >>>>> >>>>> R.H. >>>> >>>> I do know what a hyperplane is :-) Neither Thomas nor you do :-) >>>> >>> >>> 'Hyperplane' has a sigtly different meaning than 'hyperplane of >>> present time'. >>> >>> But apparently your question was about the 'hyperplane of the present' >>> in context of RT and not about the general case of a hyperplane in >>> mathematics. >>> >>> In case of RT, my explanation was correct! >> >> >> The mathematical definition of hyperplane match with the definition >> of hyperplane of simultaneity > > > Your [snip slander] has no definition > of simultaneity We have. > "present" is a special case of simultaneity, Oh really? Special in which way then? > lying stinker, poor stinker. Nice signature