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| Tags: motion, orbital |
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Starblade Darksquall wrote: Richard wrote in message ... (formerly)" wrote: Dear Donald G. Shead: "Donald G. Shead" wrote in message ... An orbit is the balance between two compensating motions: Impetus, or momentum, and centripetal free fall. That is, the earth is continually falling toward the sun, but its impetus keeps it moving in an ellipse. When these two motions are at a sufficiently oblique angle to each other a stable orbit results. Better still. An orbit is the line of motion of a mass that has no force applied to it. Thus according to your statement, the apple seemingly 'at rest' on the ground is actually being accelerated upward at 32ft/sec^2. Why isn't it gaining KE? It is, but so are the rest of us. In our frame of reference it does not gain KE, but from the frame of reference of someone in free fall, at least, some free fall frames of reference, it does. It's all relative. I don't agree. Hmmm, could be because it's not accelerating and you are a moron. It's particles are however actively accelerating under the influence of gravity. So you're saying that the apple falls through itself? Yes. At any given instant, 1/2 of the particles are falling down through the apple, and the other 1/2 are decelerating in their rise up through the apple. Electromagnetic forces superpose over the gravitational forces, that is, they don't cancel each other on the microscopic scale, they simply complicate the events. Physical reality is the sum of its fundamental parts, and its fundamental parts don't include macroscopic objects, which are nothing more than sentient interpretations of reality. OTOH the motion of the 'apple' is the vector sum of the motions of its parts, but this is an idealization, since the facts are that an apple is not absolute entity, it is constantly evaporating particles into its surroundings, and conversely absorbing other particles from the surroundings. Nature cannot be simplified if it is to be 'understood', all of the messy microscopic details must be accounted for in order to paint an accurate picture. The standard interpretations of GR (such as the one that I criticized above) fail when the motions of individual particles are considered, simply because the geodesic of an apple is just the vector sum of the geodesics of its particles, all of which are electromagnetically determined, that is, gravity is as fundamentally invalid a notion as the apple, where logical consistency is desired. It was Lewis Carroll who put it best, when he inquired deeply and sincerely, "What is a thing?" Richard Perry http://www.cswnet.com/~rper You people need to pull your heads out of your asses and understand that the motion of any extended object is just the sum of the motions of its parts. The laws of physics only apply consistently and reasonably to the motions of the parts. That's not entirely true. Some laws of physics are cumulative in such a way that the laws of physics of the whole is the same as that of its parts, simply because of the way the math adds up. Furthermore, to a given degree of accuracy, we could say that due to the current macroscopic laws of physics that there is no real contradiction between reality and the laws we apply to the body. The fundamental parts are 'never' at rest, thus negating your bull**** meta-physical explanations without question, and half of your physics in the process. When you attempt to describe reality without a damn clue as to the fundamental constituents of that reality then your chatter is as empty as anyone else here posting what you term crackpot notions. If you can't do better than this, then just quote the ****ing math and shut the hell up about your interpretations, their just as ****ing illogical, and inconsistent as any science fiction fantasy that can be pulled out of the ass. Well, at least you're right about some of this. Richard Perry http://www.cswnet.com/~rper It is carrying a portion of the system's angular momentum. If you release the apple, it follows an elliptical orbit, until the dirt catches it. No mysterious force required. David A. Smith (...Starblade Riven Darksquall...) |
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