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Date: Sat, 20 Jul 2024 06:19:16 +0200 Mime-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Incorrect mathematical integration Newsgroups: sci.physics.relativity References: <EKV4LWfwyF4mvRIpW8X1iiirzQk@jntp> <f8e832e315096ba2ae9be122369cbfdc@www.novabbs.com> Content-Language: pl From: Maciej Wozniak <mlwozniak@wp.pl> In-Reply-To: <f8e832e315096ba2ae9be122369cbfdc@www.novabbs.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Lines: 58 Path: ...!weretis.net!feeder9.news.weretis.net!usenet.blueworldhosting.com!diablo1.usenet.blueworldhosting.com!tr3.iad1.usenetexpress.com!feeder.usenetexpress.com!tr2.eu1.usenetexpress.com!news.newsdemon.com!not-for-mail Nntp-Posting-Date: Sat, 20 Jul 2024 04:19:15 +0000 X-Received-Bytes: 2900 Organization: NewsDemon - www.newsdemon.com X-Complaints-To: abuse@newsdemon.com Message-Id: <17e3d0e2ed9178c0$138290$505029$c2365abb@news.newsdemon.com> Bytes: 3307 W dniu 19.07.2024 o 23:45, gharnagel pisze: > On Fri, 19 Jul 2024 19:51:32 +0000, Richard Hachel wrote: >> >> I once explained to a speaker that additions of relativistic speeds were >> not done in a common way, and that for example 0.5c+0.5c did not make c. >> >> This Internet user refused to believe me. >> >> For what? Because it is very difficult to give water to a donkey who is >> not thirsty, and who categorically refuses to understand or discuss. >> >> I think that this makes most of the speakers smile, because they know A >> LITTLE realtivity, and if they do not necessarily know the general >> formula >> for adding relativistic speeds, they at least know the longitudinal >> formula that is w=(v +u)/(1+v.u/c²) or here w=0.8c. >> >> But we must go further. Physicists don't make this kind of mistake, but >> they do make others. I told Paul B. Andersen that his magnificent >> integration formula >> >> <http://news2.nemoweb.net/jntp?EKV4LWfwyF4mvRIpW8X1iiirzQk@jntp/Data.Media:1> >> >> was incorrect PHYSICALLY even though mathematically it was obviously >> perfect. >> >> Paul doesn't want to believe me. This confuses him. >> >> However he is wrong and I pointed out to him that if we could integrate >> all the proper times, to obtain the sum of the total proper time, we >> could >> not do it with improper times, the sum of which segment by segment was >> greater than the total evolution. >> >> A bit like realtivist speed additions where the sum is not equal to the >> common, mathematical sum. > > That's not a valid comparison, Dr. H. > >> Paul doesn't want to believe me, because he wasn't taught that way, and >> he complains about me. >> >> Why doesn't he complain about those who taught him incorrectly? >> >> R.H. > > It seems to me that he complained properly. You have made an accusation > without a justification. If one can't use "improper" times to integrate > a proper time, what does one use? And if using "improper" times is > wrong in this case, that throws all of calculus in doubt. > > Frankly, I found that physicists get into more trouble when they ignore > mathematical rules. For sure - your idiot guru will sooner or later get into big, big trouble for rejecting basic [Euclidean] math