Path: ...!weretis.net!feeder9.news.weretis.net!news.quux.org!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: "Paul.B.Andersen" Newsgroups: sci.physics.relativity Subject: Re: Understanding the theory of special relativity Date: Thu, 23 Jan 2025 21:54:06 +0100 Organization: A noiseless patient Spider Lines: 20 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Thu, 23 Jan 2025 21:51:31 +0100 (CET) Injection-Info: dont-email.me; posting-host="ec110533c712e25c6440b81f92f69cf2"; logging-data="1903134"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18sBxmSMwjn6lRqtL4GUhHz" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:DZzbPi5b2CnGgAcnXFiS97ZtqUA= In-Reply-To: Content-Language: en-GB Bytes: 1878 Den 23.01.2025 09:22, skrev Richard Hachel: > > There is a flaw in your way of understanding the ratio of observable > time (terrestrial) and proper time (rockets in general). In physics, proper time is what clocks show. The only way to observe time is to read it off a clock. So "observed time" and "proper time" are the same. https://paulba.no/pdf/Clock_rate.pdf See: 1.1 "What is proper time?" -- Paul https://paulba.no/