Path: ...!news.mixmin.net!proxad.net!feeder1-2.proxad.net!usenet-fr.net!pasdenom.info!from-devjntp Message-ID: JNTP-Route: news2.nemoweb.net JNTP-DataType: Article Subject: Re: Ehrenfest paradox References: <1qm8va9.1qil74z1wc3rlbN%nospam@de-ster.demon.nl> Newsgroups: fr.sci.physique JNTP-HashClient: bxi_ztMK9uPdKkC_gnBCa1NleCo JNTP-ThreadID: kuq7ihFpeblU1@mid.individual.net JNTP-ReferenceUserID: 4@news2.nemoweb.net JNTP-Uri: http://news2.nemoweb.net/?DataID=KX32qdO22BCI5bdGUZbRLJQ_0CY@jntp User-Agent: Nemo/0.999a JNTP-OriginServer: news2.nemoweb.net Date: Mon, 25 Dec 23 16:28:18 +0000 Organization: Nemoweb JNTP-Browser: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 Injection-Info: news2.nemoweb.net; posting-host="323cb0f4d8b2cc35bc4ae80f5c00de285a158a6d"; logging-data="2023-12-25T16:28:18Z/8556297"; posting-account="4@news2.nemoweb.net"; mail-complaints-to="newsmaster@news2.nemoweb.net" 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: 2231 Lines: 29 Le 25/12/2023 à 17:26, Richard Hachel a écrit : > Le 24/12/2023 à 13:18, nospam@de-ster.demon.nl (J. J. Lodder) a écrit : >> Thomas Heger wrote: >> >>> Hi NG >>> >>> I had recently read a book about GR and found it astonishing, what >>> Einstein and Ehrenfest said about observers on a rotating disk. >>> >>> https://en.wikipedia.org/wiki/Ehrenfest_paradox >>> >>> >>> >>> To me it is selfevident, that observers on a rotating disk would >>> encounter some kind of outwards acceleration, if that disk rotates. >> >> It was evident then, and it should be evident now, >> is that special relativity by itself >> is not adequate to deal with the situation. >> That's all there is to it, >> >> Jan > > Coward, coward! > > R.H. Ils ont peur de se frotter au problème, épicétou. R.H.