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Is There a Force of Gravity?
In undergraduate physics, the Newtonian concept of an attractive force between masses that is proportional to the product of the masses divided by the square of their separation is taught. When one advances to the more advanced concepts of gravitational theory as posed by General Relativity, the concept seems to change to where what we experience as a force is really the result of an inertial acceleration in "space-time". It behooves us then to examine that concept in detail. Consider two points on the Earth, perhaps London, England and Melbourne, Australia. In both of these cities, observers experience a downward "pull " towards the Earth's center. (We can ignore the centrifugal acceleration caused by Earth's rotation since, at the most, it represents only 0.3% of the Earth's gravitational acceleration and consider the Earth to be a closed system for the purposes of the discussion, all velocities and accelerations are relative to the center of the Earth and, since both London and Melbourne are nominally at the same elevation which does not change, considerations of time dilation in the gravitational field are irrelevant. These clarifications are required because a pair of individuals whose thinking processes were limited attempted clouds the discussion by introducing them in response to a previous posting.) Inertial acceleration is defined as the second derivative of position with respect to time, and since London and Melbourne are within the closed reference frame represented by the Earth they do not change their separation with respect to each other but they do experience the force of gravity as acting in essentially opposite directions. Since are observed not to undergo spatial acceleration with respect to each other and the center of the Earth, that observed force of gravity CANNOT result from an inertial acceleration. It can only result from an actual force attracting those cities towards the Earth's center in accordance with the classical Newtonian concept of gravity. It cannot result from a spatial acceleration in "space-time" as is asserted by specious interpretations of both Special and General Relativity. The force is REAL. It is much more than a mathematical abstraction! In response to a previous posting of this material, the writer received an E-Mail claiming that the writer was in error. It asserted that Melbourne and London were really in a "flattened" orbits around the center of the Earth and experienced the "force" if gravity because they were restrained from following their null geodesic orbits by the Earth's surface. What appeared to be the "force" of gravity resulted from that restraint because it prevented these two cities from following their null geodesic path? This is a rather frivolous response. If the cities were to fall through the Earth, the inertial force produced by the resulting second derivative of position with respect to time and the gravitational force would cancel and the cities would experience no net force. The attractive force that they actually experience verifies that gravitational force and inertial acceleration are different phenomena describing TWO effects, gravitational attraction and inertial acceleration. There is no way of avoiding the conclusion that the former applies a force as the result of the proximity of masses and inertial acceleration applies a force as a result of the second derivative of position with respect to time. It is only in the never-never world which mathematics allows one to be foolish enough to consider that they were different aspects of the same phenomena. As a digression, the interchange of electric and magnetic energy in a resonant circuit is conventionally treated as a single phenomena and treated by a single set of mathematics, as is the interchange of potential energy and kinetic energy when an object is in orbit. In actuality, in the resonant circuit, the energy is alternately stored in a capacitor as an electric stress in its dielectric and is stored in the inductor in its magnetic lines of force. The actions of both of these devices are independently described by their own mathematical laws. It is only when they are connected together do their laws combine to provide an action we experience as resonance in which energy is cyclicly interchanged between the two devices. I can hold a charged capacitor in one hand and an inductor in the other hand. It is only when they are connected together that resonance occurs. The same conculsion holds true for gravitation. Gravitation forces and acceleration forces are independent effects which, when coupled, account for orbits as if a single process were involved. The orbital motion results from the cyclical interchange of energy between the two independent effects. Mathematics is a useful tool, but it seems to have been forgotten that it is only a tool, it should never be used as a substitute for the intelligence needed to understand of the "mechanism(s)" involved. Physics seems to be the only science that attempts to abolish "mechanism" and rely solely on mathematics and experiment. This probably results from the fact that understanding the "mechanisms" which are involved requires an innate talent that probably cannot be taught in schools and is as rare as the musical aptitude which allows an individual to play a violin in Carnegie Hall. It is no wonder that physicists work so hard to relegate the idea of "mechanism" to the trash bin of history. It avoids the embarrassment of admitting that they do not understand their subject. The source material for this posting may be found in "Gravity" (1987), "The Einstein Hoax" (1997), and "Corrections to Residual Errors in Special Relativity (1999) located at . EVERYTHING WHICH WE ACCEPT AS TRUE MUST BE CONSISTENT WITH EVERYTHING ELSE WE HAVE ACCEPTED AS TRUE, IT MUST BE CONSISTENT WITH ALL OBSERVATIONS, AND IT MUST BE MATHEMATICALLY VIABLE. PRESENT TEACHINGS DO NOT ALWAYS MEET THIS REQUIREMENT. THE WORLD IS ENTITLED TO A HIGHER STANDARD OF WORKMANSHIP FROM THOSE IT HAS GRANTED WORLD CLASS STATUS. All Newsposts by this Website are available at Please make any response via E-mail as Newsgroups are not monitored on a regular basis. Objective responses will be treated with the same courtesy as they are presented. To prevent the wastage of time on both of our parts, please do not raise objections that are not related to material that you have read at the Website. This posting is merely a summary. E-mail:- The material at the Website has been posted continuously for over 5 years. In that time THERE HAVE BEEN NO OBJECTIVE REBUTTALS OF ANY OF THE MATERIAL PRESENTED. There have only been hand waving arguments by individuals who have mindlessly accepted the prevailing wisdom without questioning it. If anyone provides a significant rebuttal that cannot be objectively answered, the material at the Website will be withdrawn. Challenges to date have revealed only the responder's inadequacy with one exception for which a correction was provided. |
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#2
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Enilno wrote:
Is There a Force of Gravity? [snip 100 lines of ignorant crap] http://www.freefarts.com/farts.html Move cursor over blinkers to hear Retic's lecture. Psychotic ineducable boring spammer retic (Ernest Wittke), You see yourself this way, http://www.mazepath.com/uncleal/effete6.jpg The entire remainder of the planet sees you this way, http://www.mazepath.com/uncleal/effete3.png http://www.edu-observatory.org/cranks.html http://www.pagetutor.com/idiot/idiot.html http://www.mazepath.com/uncleal/sunshine.jpg http://www.albinoblacksheep.com/flash/youare.swf http://www.meninhats.com/d/20040430.html http://www.you-moron.com/ http://groups.google.com/groups?q=gr...uthor%3Awittke http://b5.sdvc.uwyo.edu/bab5/snds/argcstpd.wav http://www.apa.org/journals/psp/psp7761121.html http://insti.physics.sunysb.edu/~siegel/quack.html http://www.firehead.org/~jessh/film/kubrick/Kubrick-Psycho.html http://www.naturalchild.com/elliott_barker/prisons.html The source material for this posting may be found in "Gravity" (1987), "The Einstein Hoax" (1997), and "Corrections to Residual Errors in Special Relativity (1999) [snip] Hey, stooopid spammer Ernest Wittke - Do you want EVIDENCE? Each of the 24 GPS satellites carries either four cesium atomic clocks or three rubidum atomic clocks in orbit, with full relativistic corrections being applied. NAVSTAR Block II GPS satellites (currently being launched as replacements) have two rubidium and two cesium atomic clocks. Internal inconsistencies in SR (meaning inconsistencies of a purely mathematical logical nature) automatically lead to contradictions in number theory, itself, and arithmetic, since the mathematics of Minkowski geometry is equiconsistent with the theory of real numbers and with arithmetic. http://optoelectronics.perkinelmer.com/content/Datasheets/rfs2f.pdf http://math.ucr.edu/home/baez/RelWWW/tests.html Mathematics of gravitation http://wugrav.wustl.edu/people/CMW/update98.pdf http://www.astro.northwestern.edu/AspenW04/Papers/lorimer1.pdf Equivalence Principle testing http://arXiv.org/abs/hep-th/0111236 Geometric structure of reality http://arxiv.org/abs/gr-qc/0103044 http://arXiv.org/abs/hep-th/0307140 GR structure, especially Part 4/p. 7 http://relativity.livingreviews.org/Articles/lrr-2001-4/index.html http://arXiv.org/abs/gr-qc/0311039 http://www.weburbia.demon.co.uk/physics/experiments.html Experimental constraints on General Relativity http://tycho.usno.navy.mil/ptti/ptti2002/paper20.pdf Nature 425 374 (2003) http://www.eftaylor.com/pub/projecta.pdf http://www.public.asu.edu/~rjjacob/Lecture16.pdf http://relativity.livingreviews.org/Articles/lrr-2003-1/index.html Relativity in the GPS system http://arXiv.org/abs/gr-qc/9909014 Amer. J. Phys. 71 770 (2003) Phys. Rev. Lett. 92 121101 (2004) falling light http://hyperphysics.phy-astr.gsu.edu/hbase/relativ/airtim.html Hafele-Keating Experiment http://www.hawaii.edu/suremath/SRtwinParadox.html http://physics.syr.edu/courses/modules/LIGHTCONE/twins.html Twin Paradox Science 303(5661) 1143;1153 (2004) http://arXiv.org/abs/astro-ph/0401086 http://arxiv.org/abs/astro-ph/0312071 http://relativity.livingreviews.org/Articles/lrr-2003-5/index.html Deeply relativistic neutron star binaries http://arxiv.org/abs/hep-th/0405160 Black hole evaporation Physics Today 57(7) 40 (2004) http://physicstoday.org/vol-57/iss-7/p40.shtml No aether http://fsweb.berry.edu/academic/mans/clane/ http://physicsweb.org/articles/world/17/3/7 No Lorentz violation http://arXiv.org/abs/gr-qc/0409089 Spin-2 gravitons have problems http://groups-beta.google.com/group/sci.physics.strings/msg/ba31a00f5f26277a (so does the proposal) http://www.npl.washington.edu/eotwash/pdf/prl83-3585.pdf http://arXiv.org/abs/gr-qc/0301024 Nordtvedt Effect http://map.gsfc.nasa.gov/ http://arxiv.org/abs/astro-ph/0403292 http://arXiv.org/abs/astro-ph/0310723 WMAP + Sloane Digital Sky Survey http://arxiv.org/abs/hep-ph/0404175 Dark matter candidates http://nedwww.ipac.caltech.edu/level5/March01/Carroll/frames.html Carroll on what it all means. Special Relativity is physics on a topologically trivial Lorentzian manifold with a metric whose curvature tensor is zero. This is a perfectly diffeomorphism-invariant condition and does not require any particular coordinate choice. It is invariant under the full group of diffeomorphisms. The Poincare group is the group of *isometries* of the metric in special relativity. The Special Relativity metric is *non-dynamical* (unlike GR). It defines the coupling *constants* of your theory. If you change the metric in any nontrivial way you are changing your theory. An operation can only be called a "symmetry" of a special-relativistic (non-gravitational) theory if it preserves the metric, and therefore the symmetry of special-relativistic theories is the Poincare group only. General Relativity (gravitation) has a dynamic metric. NIM A 355 537 (1995) Physics Letters B 328 103 (1994) Physical Review Letters 64 1697 (1990) Physical Review Letters 39 1051 (1977) Physical Review 135 B1071 (1964) Physics Letters 12 260 (1964) Europhysics Letters 56(2) 170-174 (2001) General Relativity and Gravitation 34(9) 1371 (2002) http://fourmilab.to/etexts/einstein/specrel/specrel.pdf http://www.geocities.com/physics_world/sr/ae_1905_error.htm http://www.physics.gatech.edu/people/faculty/finkelstein/relativity.pdf Longitudinal and transverse mass http://arxiv.org/abs/gr-qc/0306076.pdf http://www.metaresearch.org/solar%20system/gps/absolute-gps-1meter-3.ASP http://www.navcen.uscg.gov/pubs/gps/gpsuser/gpsuser.pdf http://www.navcen.uscg.gov/pubs/gps/sigspec/default.htm http://www.navcen.uscg.gov/pubs/gps/icd200/default.htm http://www.trimble.com/gps/index.html http://sirius.chinalake.navy.mil/satpred/ http://www.phys.lsu.edu/mog/mog9/node9.html http://egtphysics.net/GPS/RelGPS.htm http://www.schriever.af.mil/gps/Current/current.oa1 http://edu-observatory.org/gps/gps_books.html http://www-astronomy.mps.ohio-state.edu/~pogge/Ast162/Unit5/gps.html If anyone provides a significant rebuttal that cannot be objectively answered, the material at the Website will be withdrawn. Right, like your head has ever been withdrawn from your ass - even when you ****. -- Uncle Al http://www.mazepath.com/uncleal/ (Toxic URL! Unsafe for children and most mammals) http://www.mazepath.com/uncleal/qz.pdf |
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#3
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Enilno wrote:
Is There a Force of Gravity? Background; http://scienceworld.wolfram.com/physics/Gravity.html The theory of general relativity describes the phenomenon of gravity very differently: http://scienceworld.wolfram.com/phys...elativity.html Planetary Motion http://scienceworld.wolfram.com/biography/Kepler.html http://scienceworld.wolfram.com/phys...Equations.html Crank Information http://groups.google.com/groups?q=gr...VITYMECHA NIC http://groups.google.com/groups?q=gr...ITYMECHA NIC2 http://www.google.com/search?q=einst...Awww.crank.net http://groups.google.com/groups?q=gr...author%3Aretic http://groups.google.com/groups?q=gr...thor%3Aretiche http://groups.google.com/groups?q=gr...hor%3Areticher http://groups.google.com/groups?q=gr...or%3Areticher1 http://groups.google.com/groups?q=gr...uthor%3Awittke |
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#4
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In sci.physics, Enilno
wrote on Thu, 24 Feb 2005 17:30:37 -0500 : Is There a Force of Gravity? The ridiculously terse answer: No. It just feels like one. :-) In undergraduate physics, the Newtonian concept of an attractive force between masses that is proportional to the product of the masses divided by the square of their separation is taught. When one advances to the more advanced concepts of gravitational theory as posed by General Relativity, the concept seems to change to where what we experience as a force is really the result of an inertial acceleration in "space-time". I'm not sure of the concept of "inertial acceleration", admittedly. The best I can do with it is that an object, when traveling through a warped space, travels through it in such a fashion as to have constant energy. Or, perhaps, one has to consider the entire *system* (usually, a planet and a satellite, either natural or artificial, orbiting it); that system will have both constant energy and constant momentum, if all other gravitational influences are ignored/eliminated/moved away. Of course, a satellite of 10 kg might move 8 km in the space of a second, and a planet of, oh, say, 5.976 * 10^24 kg, might move a tiny fraction of the average size of a proton in the same time interval. The satellite also warps space, of course -- though the warpage thereof is ridiculously tiny compared to the planet's. It behooves us then to examine that concept in detail. Consider two points on the Earth, perhaps London, England and Melbourne, Australia. In both of these cities, observers experience a downward "pull " towards the Earth's center. (We can ignore the centrifugal acceleration caused by Earth's rotation since, at the most, it represents only 0.3% of the Earth's gravitational acceleration and consider the Earth to be a closed system for the purposes of the discussion, all velocities and accelerations are relative to the center of the Earth and, since both London and Melbourne are nominally at the same elevation which does not change, considerations of time dilation in the gravitational field are irrelevant. These clarifications are required because a pair of individuals whose thinking processes were limited attempted clouds the discussion by introducing them in response to a previous posting.) Inertial acceleration is defined as the second derivative of position with respect to time, and since London and Melbourne are within the closed reference frame represented by the Earth they do not change their separation with respect to each other but they do experience the force of gravity as acting in essentially opposite directions. Since are observed not to undergo spatial acceleration with respect to each other and the center of the Earth, that observed force of gravity CANNOT result from an inertial acceleration. It can only result from an actual force attracting those cities towards the Earth's center in accordance with the classical Newtonian concept of gravity. It cannot result from a spatial acceleration in "space-time" as is asserted by specious interpretations of both Special and General Relativity. The force is REAL. It is much more than a mathematical abstraction! Energy consists of at least two parts: potential energy and kinetic energy. If, say, a space rock were to target the Earth (assuming space rocks have any brains to do so, of course :-) ), the energy of that space rock will be constant but the potential energy (which is negative, by convention; 0 = infinitely far away in a strain-free inertial reference frame, motionless relative to the measuring-device) will decrease, requiring an increase in the kinetic. It's the kinetic component that does the most damage when the rock finally falls on one's foot -- or one's head, if one be so unlucky. It turns out that photons exhibit a similar behavior, with two differences: [1] They don't change speed. [2] The manifestation of the "extra" energy is an increase in frequency, rather than an increase in speed. If one has a rocket with insufficient energy, it will fall back to Earth. With sufficient energy, it will fall around the Earth (orbit) or might even escape (potential + kinetic 0). [rest snipped] -- #191, It's still legal to go .sigless. |
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#5
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Newton made big mistake. There is no force of gravity.
"Enilno" wrote in message ... Is There a Force of Gravity? In undergraduate physics, the Newtonian concept of an attractive force between masses that is proportional to the product of the masses divided by the square of their separation is taught. When one advances to the more advanced concepts of gravitational theory as posed by General Relativity, the concept seems to change to where what we experience as a force is really the result of an inertial acceleration in "space-time". It behooves us then to examine that concept in detail. Consider two points on the Earth, perhaps London, England and Melbourne, Australia. In both of these cities, observers experience a downward "pull " towards the Earth's center. (We can ignore the centrifugal acceleration caused by Earth's rotation since, at the most, it represents only 0.3% of the Earth's gravitational acceleration and consider the Earth to be a closed system for the purposes of the discussion, all velocities and accelerations are relative to the center of the Earth and, since both London and Melbourne are nominally at the same elevation which does not change, considerations of time dilation in the gravitational field are irrelevant. These clarifications are required because a pair of individuals whose thinking processes were limited attempted clouds the discussion by introducing them in response to a previous posting.) Inertial acceleration is defined as the second derivative of position with respect to time, and since London and Melbourne are within the closed reference frame represented by the Earth they do not change their separation with respect to each other but they do experience the force of gravity as acting in essentially opposite directions. Since are observed not to undergo spatial acceleration with respect to each other and the center of the Earth, that observed force of gravity CANNOT result from an inertial acceleration. It can only result from an actual force attracting those cities towards the Earth's center in accordance with the classical Newtonian concept of gravity. It cannot result from a spatial acceleration in "space-time" as is asserted by specious interpretations of both Special and General Relativity. The force is REAL. It is much more than a mathematical abstraction! In response to a previous posting of this material, the writer received an E-Mail claiming that the writer was in error. It asserted that Melbourne and London were really in a "flattened" orbits around the center of the Earth and experienced the "force" if gravity because they were restrained from following their null geodesic orbits by the Earth's surface. What appeared to be the "force" of gravity resulted from that restraint because it prevented these two cities from following their null geodesic path? This is a rather frivolous response. If the cities were to fall through the Earth, the inertial force produced by the resulting second derivative of position with respect to time and the gravitational force would cancel and the cities would experience no net force. The attractive force that they actually experience verifies that gravitational force and inertial acceleration are different phenomena describing TWO effects, gravitational attraction and inertial acceleration. There is no way of avoiding the conclusion that the former applies a force as the result of the proximity of masses and inertial acceleration applies a force as a result of the second derivative of position with respect to time. It is only in the never-never world which mathematics allows one to be foolish enough to consider that they were different aspects of the same phenomena. As a digression, the interchange of electric and magnetic energy in a resonant circuit is conventionally treated as a single phenomena and treated by a single set of mathematics, as is the interchange of potential energy and kinetic energy when an object is in orbit. In actuality, in the resonant circuit, the energy is alternately stored in a capacitor as an electric stress in its dielectric and is stored in the inductor in its magnetic lines of force. The actions of both of these devices are independently described by their own mathematical laws. It is only when they are connected together do their laws combine to provide an action we experience as resonance in which energy is cyclicly interchanged between the two devices. I can hold a charged capacitor in one hand and an inductor in the other hand. It is only when they are connected together that resonance occurs. The same conculsion holds true for gravitation. Gravitation forces and acceleration forces are independent effects which, when coupled, account for orbits as if a single process were involved. The orbital motion results from the cyclical interchange of energy between the two independent effects. Mathematics is a useful tool, but it seems to have been forgotten that it is only a tool, it should never be used as a substitute for the intelligence needed to understand of the "mechanism(s)" involved. Physics seems to be the only science that attempts to abolish "mechanism" and rely solely on mathematics and experiment. This probably results from the fact that understanding the "mechanisms" which are involved requires an innate talent that probably cannot be taught in schools and is as rare as the musical aptitude which allows an individual to play a violin in Carnegie Hall. It is no wonder that physicists work so hard to relegate the idea of "mechanism" to the trash bin of history. It avoids the embarrassment of admitting that they do not understand their subject. The source material for this posting may be found in "Gravity" (1987), "The Einstein Hoax" (1997), and "Corrections to Residual Errors in Special Relativity (1999) located at . EVERYTHING WHICH WE ACCEPT AS TRUE MUST BE CONSISTENT WITH EVERYTHING ELSE WE HAVE ACCEPTED AS TRUE, IT MUST BE CONSISTENT WITH ALL OBSERVATIONS, AND IT MUST BE MATHEMATICALLY VIABLE. PRESENT TEACHINGS DO NOT ALWAYS MEET THIS REQUIREMENT. THE WORLD IS ENTITLED TO A HIGHER STANDARD OF WORKMANSHIP FROM THOSE IT HAS GRANTED WORLD CLASS STATUS. All Newsposts by this Website are available at Please make any response via E-mail as Newsgroups are not monitored on a regular basis. Objective responses will be treated with the same courtesy as they are presented. To prevent the wastage of time on both of our parts, please do not raise objections that are not related to material that you have read at the Website. This posting is merely a summary. E-mail:- The material at the Website has been posted continuously for over 5 years. In that time THERE HAVE BEEN NO OBJECTIVE REBUTTALS OF ANY OF THE MATERIAL PRESENTED. There have only been hand waving arguments by individuals who have mindlessly accepted the prevailing wisdom without questioning it. If anyone provides a significant rebuttal that cannot be objectively answered, the material at the Website will be withdrawn. Challenges to date have revealed only the responder's inadequacy with one exception for which a correction was provided. |
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#6
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Uno wrote:
Newton made big mistake. There is no force of gravity. Please demonstrate from a tall building. |
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#7
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Hi Sam Seems Einstien took force from gravity. Seems kind of far out
that a curve gives the effect of gravity. There was a ride(i loved ) on Revere Beach that spun and when up to a set speed you were stuck to its walls. Maybe gravity is created because nothing moves in a straight line? Space itself might spin(loved that amusement ride) I do have a theory that space is concave(locally) and convex (at great distance) Convex space gives the universe its observed accelerating inflation. Space is indeed more interesting than all that is immerged in it. Bert PS Best to keep in mind that inertia and gravity are two sides to the same coin,and curved motion is gravity |
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Sam Wormley wrote in message news:9ezTd.53705$tl3.43878@attbi_s02...
Uno wrote: Newton made big mistake. There is no force of gravity. Please demonstrate from a tall building. Uno is right. There is no force of gravity. Therre is only a lever. What Newton experienced as gravity is only twisted interpretation of Archimedes' lever. The falling body in the very first instance of the free fall doesn't suffer force but only has extreme distance (arm) from its equilibrium point. Because the falling body is notorious consumer it will begin to spend every thing it got - in this case its distance. However, since its imbalance is preserved it will gain force just as it spends its distance. At the impact point - the equilibium point the body will have extreme force which it will try to annihilate with the none- symmetric frontal compression from the impact. In few words: "Newton got levers all up-side-down". |
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#9
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gravity is the force of attraction between particles and matter waves
"G=EMC^2 Glazier" wrote in message ... Hi Sam Seems Einstien took force from gravity. Seems kind of far out that a curve gives the effect of gravity. There was a ride(i loved ) on Revere Beach that spun and when up to a set speed you were stuck to its walls. Maybe gravity is created because nothing moves in a straight line? Space itself might spin(loved that amusement ride) I do have a theory that space is concave(locally) and convex (at great distance) Convex space gives the universe its observed accelerating inflation. Space is indeed more interesting than all that is immerged in it. Bert PS Best to keep in mind that inertia and gravity are two sides to the same coin,and curved motion is gravity |
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#10
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Ron Poteet wrote:
gravity is the force of attraction between particles and matter waves Gravity is geometry. "G=EMC^2 Glazier" wrote in message ... Hi Sam Seems Einstien took force from gravity. Seems kind of far out that a curve gives the effect of gravity. There was a ride(i loved ) on Revere Beach that spun and when up to a set speed you were stuck to its walls. Maybe gravity is created because nothing moves in a straight line? Space itself might spin(loved that amusement ride) I do have a theory that space is concave(locally) and convex (at great distance) Convex space gives the universe its observed accelerating inflation. Space is indeed more interesting than all that is immerged in it. Bert PS Best to keep in mind that inertia and gravity are two sides to the same coin,and curved motion is gravity |
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