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Date: Thu, 23 Jan 2025 23:10:18 +0100 Mime-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Understanding the theory of special relativity Newsgroups: sci.physics.relativity References: <pLY2g2cfZDGOOQgmeYWzTah-WZA@jntp> <vmgv7s$12co1$1@dont-email.me> <yxs7n05hOm2IBIUkKaNrnVBOppA@jntp> <vmivft$28k2a$1@dont-email.me> <P34uo7fZOF85O-SfjYojnrCRX_8@jntp> <vmm7t2$3cgdv$1@dont-email.me> <BJ6Q9nUU0bo9Nwlif25X1jQzfd8@jntp> <vmob71$54vk$1@dont-email.me> <IFzu48FyPqxIuz1SjqxEczJXtvA@jntp> <vmrmts$175ja$1@dont-email.me> <ApUJbRHxFgskdMe2A2qDTYyJcbo@jntp> <vmu8v3$1q2gu$1@dont-email.me> Content-Language: pl From: Maciej Wozniak <mlwozniak@wp.pl> In-Reply-To: <vmu8v3$1q2gu$1@dont-email.me> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Lines: 52 Path: ...!weretis.net!feeder9.news.weretis.net!newsfeed.hasname.com!usenet.blueworldhosting.com!diablo1.usenet.blueworldhosting.com!feed.abavia.com!abe005.abavia.com!abe002.abavia.com!feeder.usenetexpress.com!tr2.eu1.usenetexpress.com!news.newsdemon.com!not-for-mail Nntp-Posting-Date: Thu, 23 Jan 2025 22:10:18 +0000 X-Received-Bytes: 2628 X-Complaints-To: abuse@newsdemon.com Organization: NewsDemon - www.newsdemon.com Message-Id: <181d71db5cf9119f$7330$1407297$c2565adb@news.newsdemon.com> Bytes: 3080 W dniu 23.01.2025 o 21:34, Paul.B.Andersen pisze: > Den 23.01.2025 09:02, skrev Richard Hachel: >> Le 22/01/2025 à 22:11, "Paul.B.Andersen" a écrit : >>> ========================================= >>> There is no reciprocity in this scenario. >>> ========================================= > > The subject line is:"Understanding the theory of special relativity" > > What SR predicts is not a matter of opinion, it is a matter of fact. > > This is the fact: > > https://paulba.no/pdf/TwinsByMetric.pdf > See: 2.3 "B travels with constant acceleration" > and: 2.4 "Concrete example" > >> >> There is reciprocity ; and accelerations, weight, gravity have nothing >> to do with the theory of relativity. > > Gravitation has nothing to do with The Special Theory of Relativity. > But in this scenario twin B is accelerating during the whole journey, > and an accelerated object has weight. > >> There is reciprocity. Why? >> Because the theory of relativity, and more precisely the Lorentz >> factor, which is one of the cornerstones of understanding, only relies >> on one thing: relative speed. > > The Lorenz factor depends only on their relative speed. > But their speed in an inertial frame also depends on their > _proper_ accelerations. > > See equation (14) > > So for the scenario to be reciprocal both their relative speed > and their proper accelerations must be reciprocal. > > Their relative speed is reciprocal, but their accelerations are not. > > This is the reason why their proper times are different. > > Twin A ages 23.664 year > Twin B ages 9.912 year > > No reciprocity. > Fact. No fact, just a scenario/delusion of a brainwashed idiot.