Warning: mysqli::__construct(): (HY000/1203): User howardkn already has more than 'max_user_connections' active connections in D:\Inetpub\vhosts\howardknight.net\al.howardknight.net\includes\artfuncs.php on line 21
Failed to connect to MySQL: (1203) User howardkn already has more than 'max_user_connections' active connectionsPath: news.eternal-september.org!eternal-september.org!feeder3.eternal-september.org!news.gegeweb.eu!gegeweb.org!usenet-fr.net!feeder1-2.proxad.net!proxad.net!feeder1-1.proxad.net!cleanfeed3-a.proxad.net!nnrp3-1.free.fr!not-for-mail Newsgroups: alt.usage.english,sci.physics Subject: Re: The antics of thermodynamics, the depravity of relativity, the bunkum of quantum From: nospam@de-ster.demon.nl (J. J. Lodder) Reply-To: jjlxa31@xs4all.nl (J. J. Lodder) Date: Wed, 12 Mar 2025 22:01:47 +0100 References: <29ddba74afd0cdddbd9fbef17243485e@www.novabbs.com> <2937ffa1c63968d4b00621247540b721@www.novabbs.com> <1b8634e8fc31423132450161b2ad982e@www.novabbs.com> <63773432e96ef6c23cef09a2c2ccdae9@www.novabbs.org> Organization: De Ster Mail-Copies-To: nobody User-Agent: MacSOUP/2.8.5 (ea919cf118) (Mac OS 10.12.6) Lines: 37 Message-ID: <67d1f63b$0$28478$426a34cc@news.free.fr> NNTP-Posting-Date: 12 Mar 2025 22:01:47 CET NNTP-Posting-Host: 213.10.137.58 X-Trace: 1741813307 news-4.free.fr 28478 213.10.137.58:64503 X-Complaints-To: abuse@proxad.net Snidely wrote: > Remember Wednesday, when David Canzi asked plaintively: > > On 3/9/25 23:54, bertitaylor wrote: > >> Okay, let us do some school level physics (what Arindam was taught in > >> Std 8) > >> Pressure is force/area. (Fundamental school level education, useful in > >> hydraulics, which Arindam learnt in Std 9). > >> Force is a vector > >> Area is a scalar, when by convention its orientation is perpendicular to > >> the force. > >> The division of a vector by a scalar is a vector. > >> So pressure is a VECTOR. > > > > The formula for gravitational attraction between two bodies is: > > > > F = G m1 m2 / d^2 > > > > The left side is a force, therefore (according to you) a vector. None > > of the quantities on the right side are vectors. How does that happen? > > You're missing the unit vector in the direction of the attracted to the > attractor. Instead, you're only looking at magnitudes. > > Forces always act in a direction, which means that they are described > by vectors. Note that in case of gravitation, both parties are being > forceful. Unlike parties in real life.... Fortunately, by Newtons third law, his physical bodies have no choice about it. Jan