Path: ...!weretis.net!feeder8.news.weretis.net!pasdenom.info!from-devjntp Message-ID: JNTP-Route: news2.nemoweb.net JNTP-DataType: Article Subject: Re: Relativistic aberration References: <43e0a1be4a7921eb043acb58d1168ee1@www.novabbs.com> <1b0910c819bb031839b21557a19c75be@www.novabbs.com> <_hiIkN_NB6Jm2XOJZeHK7Fy9L2E@jntp> <1f081cbe82f7c86f1463b0bf5ad957a9@www.novabbs.com> <9mrYetkghLXwIcwZUl4c8b3LTKI@jntp> <6f498e8663ec0b05b9cd9e03df9b4de4@www.novabbs.com> Newsgroups: sci.physics.relativity JNTP-HashClient: jPCfeuAfz9-NeQCy_NQAWyUm-VY JNTP-ThreadID: XgGFOrcTXd5ZDEX07aa-LTy0U04 JNTP-Uri: http://news2.nemoweb.net/?DataID=ax6MxS3cOfxpddjDMj-JILVb5VA@jntp User-Agent: Nemo/0.999a JNTP-OriginServer: news2.nemoweb.net Date: Mon, 15 Jul 24 22:44:12 +0000 Organization: Nemoweb JNTP-Browser: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36 Injection-Info: news2.nemoweb.net; posting-host="e8cbf2474b472b9bb79db3dccb6a856bc1d05409"; logging-data="2024-07-15T22:44:12Z/8950151"; posting-account="4@news2.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: Richard Hachel Bytes: 2629 Lines: 29 Le 15/07/2024 à 23:54, hitlong@yahoo.com (gharnagel) a écrit : > It's okay to assume the acceleration and the mass, then use the correct > equations for E and p. It's not that simple, and perhaps that's the huge problem. Knowing the mass of a particle is simple. Knowing the energy, or momentum of the particle, is simple. So knowing your speed (observable, real or apparent) Vo, Vr, Vapp, is very simple. But how do we know our own acceleration? Isn't acceleration measured in the lab reference frame? In this case, it is the acceleration measured in the lab, and it is not the real acceleration. If we do not know a, then we cannot verify what is theoretically obvious which logically dictates that Voi/c=[1+c²/2ax]^-(1/2) > There is a known relationship between the two. Yes, but is a local acceleration... it always change in the time and in the space. R.H.