Path: csiph.com!news.mixmin.net!eternal-september.org!reader01.eternal-september.org!.POSTED!not-for-mail From: The Starmaker Newsgroups: sci.physics.relativity Subject: Re: What is the force that the Earth used to keep us on the ground? Date: Sat, 17 Dec 2022 22:18:40 -0800 Organization: The Starmaker Organization Lines: 78 Message-ID: <639EB0C0.AC2@ix.netcom.com> References: <639D61B6.5537@ix.netcom.com> <59b97741-a8bc-41a3-9bba-d46bb1fa2592n@googlegroups.com> Reply-To: starmaker@ix.netcom.com MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Injection-Info: reader01.eternal-september.org; posting-host="4c88c052e1f4f5e1f3da293a69b92a74"; logging-data="4121243"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19m/PmxQ8grsqQeqB56hEYciCPerLwiwCc=" Cancel-Lock: sha1:Ubhj4aeUm13xvfpgc3QBMLhZkc0= X-Antivirus-Status: Clean X-Antivirus: Avast (VPS 221217-12, 12/17/2022), Outbound message X-Mailer: Mozilla 3.04Gold (WinNT; U) Xref: csiph.com sci.physics.relativity:597789 Richard Hertz wrote: > > On Saturday, December 17, 2022 at 9:02:40 PM UTC-3, patdolan wrote: > > On Saturday, December 17, 2022 at 1:40:45 PM UTC-8, Richard Hertz wrote: > > > On Saturday, December 17, 2022 at 6:31:14 PM UTC-3, Paul B. Andersen wrote: > > > > Den 17.12.2022 20:20, skrev patdolan: > > > > > There are no GR formulae that describe forces between entities because there are no forces in GR; only the interplay of geodesics about mass, stress, pressure and energy. > > > > > > > > > > Weight, you say? There is no "weight" in GR? There is only the colocation of geodesics. Right Dono? > > > > Your weight is the force your chair is acting on your butt, > > > > giving you a proper acceleration upwards. > > > > > > > > Your bathroom scale measures your weight, not your mass. > > > > You can find your mass with a scale and an accelerometer. > > > > > > > > m = F/g > > > > > > > > When your bathroom scale shows kilograms, it is because > > > > it assumes that you are at the Earth with known g. > > > > > > > > -- > > > > Paul > > > > > > > > https://paulba.no/ > > > Fucking Einstein's elevator! DOWNWARDS! If acceleration is upwards we all would be flying to outer space. > > Strangely, Richard, this is what Paul and the relativists would have us believe. Here, crazy talk explain with a felt tipped pen: > > https://youtu.be/XRr1kaXKBsU?t=452 > > > > The recondite hieroglyphs man's construct, higher mathematics, make everything believable to the unthinking. But never forget this > > > > i^4 = i^8 > > sqrt( i^4 ) = sqrt( i^8 ) > > +/- [ i^2 ] = +/- [ i^4 ] > > +/- [ -1 ] = +/- [ 1 ] > > -/+ 1 = +/- 1 > > Pat, i just googled "why acceleration on earth is upward". I post now different answers. Relativists don't know, read the Einstein part. > > "The relativistic point of view would be that the space around the Earth is compressing, but the atoms of the Earth resists this compression. This means that the surface of the Earth is constantly accelerating upwards." > > "What did Einstein say about acceleration? > He envisioned a man in a box. Einstein realized that there was no way this man could tell whether he was sitting in a gravitational field or being accelerated. Because of this, these two situations were equal. By extension, Einstein concluded that gravity and acceleration are the same thing." > > "Is acceleration upwards or downwards? > Image result for why acceleration on earth is upward > Acceleration from gravity is always constant and downward, but the direction and magnitude of velocity change." > > "What does upward acceleration mean? > The elevator has an upward acceleration (accelerating upward, or decelerating while on the way down) the elevator has a downward acceleration (accelerating down, or decelerating while on the way up)" > > "Does Earth accelerate downwards? > Indeed, every object at Earth's surface experiences an acceleration of 9.8 m/s², in whatever direction you commonly define as down: towards the Earth's center." > > "Why do we accelerate towards the Earth? > When objects fall to the ground, gravity causes them to accelerate. Acceleration is a change in velocity, and velocity, in turn, is a measure of the speed and direction of motion. Gravity causes an object to fall toward the ground at a faster and faster velocity the longer the object falls." > > "What is the direction of Earth's acceleration? > The acceleration due to gravity is always directed towards the center of the earth. In normal mechanics , we say that it is vertically downward." Downward again? Everybody keeps using the word..."downward"? the force that the Earth used to keep us on the ground is coming from inside the earth and reaching out and pulling my feet. not falling down...pulling. What is this force pulling at me? Where in the ground inside earth is it located? A magnet or something? -- The Starmaker -- To question the unquestionable, ask the unaskable, to think the unthinkable, mention the unmentionable, say the unsayable, and challenge the unchallengeable.