Newton's law of gravitational attraction
in [Relativity]
|
From: Jonah Thomas on 16 Oct 2009 15:40 NoEinstein <noeinstein(a)bellsouth.net> wrote: > Jonah Thomas <jethom...(a)gmail.com> wrote: > > NoEinstein <noeinst...(a)bellsouth.net> wrote: > > > Dear Dougie Boy, the leech: Not a soul in the world cares about > > > having your... 'respect'. Mentally, you are a NON entity. NE > > > > It's an unmoderated newsgroup and you have the right to post as you > > see fit. > > > > But that was unkind. > > Dear Jonah: Though I am a nice person (to nice people), Dougie Boy, > the leech, deserves only the disdain of the readers for his psychotic > negativity in the face of new science truths. People like him are the > black spots on these groups. He deserves your pity. But if he threatens your self-esteem then it's understandable you would not feel merciful.
From: Androcles on 16 Oct 2009 17:44 "Jonah Thomas" <jethomas5(a)gmail.com> wrote in message news:20091016154053.57895c9b.jethomas5(a)gmail.com... NoEinstein <noeinstein(a)bellsouth.net> wrote: > Jonah Thomas <jethom...(a)gmail.com> wrote: > > NoEinstein <noeinst...(a)bellsouth.net> wrote: > > > Dear Dougie Boy, the leech: Not a soul in the world cares about > > > having your... 'respect'. Mentally, you are a NON entity. - NE - > > > > It's an unmoderated newsgroup and you have the right to post as you > > see fit. > > > > But that was unkind. > > Dear Jonah: Though I am a nice person (to nice people), Dougie Boy, > the leech, deserves only the disdain of the readers for his psychotic > negativity in the face of new science truths. People like him are the > black spots on these groups. JT: He deserves your pity. ================================ Why? ================================ JT: But if he threatens your self-esteem then it's understandable you would not feel merciful. ======================================== Lamb chops don't threaten my self-esteem and I show them no mercy. What have they done to deserve pity? But if it makes you feel better I'll say "poor, pitiful little lamb chops" and weep crocodile tears for them come dinner time, and have a pity party for Dougal. Poor, pitiful little Dougal, he shouldn't have strayed from the Magic Roundabout. http://en.wikipedia.org/wiki/The_Magic_Roundabout http://wallpapers.free-review.net/16_~_The_Magic_Roundabout__-_Dougal.htm Happy now?
From: NoEinstein on 19 Oct 2009 15:43 On Oct 16, 2:12 pm, PD <thedraperfam...(a)gmail.com> wrote: > Dear PD, the Parasite Dunce: Kinetic Energy is identical to MOMENUTM. It's how hard an object of known weight will impact due to having some specific velocity. It turns out that KE will increase ONE WEIGHT UNIT of FORCE for every 32.174 ft. per second increase in velocity. In the case of falling objects, that velocity increase occurs every second of the fall. Worklike we both agreeis force x distance. Move something twice as far against some resistance, and in the desired direction, and you do twice as much WORK. But the distance of fall of falling objects isn't against any resistance! So, no work can be calculated. What is known, however, is that the WEIGHT of the object is uniformly acting DOWN, for however long the object falls. *** The majority of the distance of fall is due to the accruing coasting velocity each second. What that is like is taking your foot off of the accelerator when you reach 32.174 ft. / sec. During the next second (ignoring road friction and wind resistance) the car will COAST 32.174 feet. The latter distance doesn't increase KE, because the velocity hasn't changed! If you would actually take the following Pop Quiz for Science Buffs, you might better understand that distance of travel doesn't increase KE, nor momentum (the same thing), in any way. The equation for momentum is mass x velocity (in 'g' multiples). 'D' is nowhere to be seen in such. NoEinstein Pop Quiz for Science Buffs! http://groups.google.com/group/sci.physics/browse_frm/thread/43f6f316... Dropping Einstein Like a Stone http://groups.google.com/group/sci.physics/browse_thread/thread/989e16c59967db2b?hl=en# > > On Oct 16, 12:03 pm, NoEinstein <noeinst...(a)bellsouth.net> wrote: > > > On Oct 13, 1:39 pm, jbriggs444 <jbriggs...(a)gmail.com> wrote: > > > Dear jbriggs444: Your definition of work is like a time-motion > > study. My definition is AFTER the work has been done, and its > > quantity gets evaluated. My formal definition of work is: W = FD x > > cos. of angle of deviation from the desired direction of motion. > > Good. Now, let's look at YOUR definition. > Notice that term D. > What do you think D stands for? > > It is the DISTANCE the object moves while the force is acting on the > object. > > Now go back and look at what I told you a few days ago about why the > work increases each second as an object falls, even as the force > remains the same. You see? You AGREE with me, by invoking that formula > above. > > > > > No > > motion in desired direction would = zero work done. Effective KE is > > AFTER all of the forces have been added or subtracted according to > > their vectors. The resultant velocity times the mass that is in > > motion yields the KE (in weight multiples, like pounds). NoEinstein > > > > > > On Oct 13, 12:08 pm, NoEinstein <noeinst...(a)bellsouth.net> wrote: > > > > > On Oct 13, 11:29 am, PD <thedraperfam...(a)gmail.com> wrote: > > > > > PD: You are off-your-rocker. Go into a small room and talk to > > > > yourself. No one with half a brain reads your replies. I only scan > > > > down to your first foot-in-the-mouth nonsense. NE > > > > So do I. Usually that results in reading clear to the bottom of a PD > > > post. > > > > > > On Oct 12, 7:32 pm, NoEinstein <noeinst...(a)bellsouth.net> wrote: > > > > > > > On Oct 10, 11:28 am, PD <thedraperfam...(a)gmail.com> wrote: > > > > > > > Dear Side-Stepping PD, the Parasite Dunce: WORK is NOT the same as > > > > > > KE! > > > > > > The contribution to the energy that changes KE is called work. Please > > > > > consult your 7th grade science book. > > > > This one gave me pause. It's too causal for my taste. It implies > > > that if two opposite forces act on a uniformly moving object that > > > neither of them do any work since neither of them change KE. > > > > One can argue that this definition isn't quite right for non-rigid > > > bodies and that it requires clarification for rotating bodies. > > > > Still, it's not a bad starting point. A simplification suitable for > > > pedagogical purposes. Especially when the discussion doesn't involve > > > rigidity or rotation. And if you read it just right, it is equivalent > > > to what I consider to be a good definition. > > > > Me, I define work as the vector dot product of instantaneous point > > > force times the incremental motion of the target object at the contact > > > point integrated over the life of the force. If it's not a point > > > force, you can integrate over the contact area as well. > > > > I've had discussions previously with folks who think that you're > > > supposed to do a path integral of force times incremental movement of > > > the force along a path. That's wrong. It's force times incremental > > > movement of the object to which the force is applied. For point > > > objects it's the same thing. For extended objects it's not.- Hide quoted text - > > - Show quoted text -
From: NoEinstein on 19 Oct 2009 15:48 On Oct 16, 2:15 pm, PD <thedraperfam...(a)gmail.com> wrote: > Dear PD, the Parasite Dunce: If your activity on these groups bore any resemblance to science, then, where are your '+new posts'? Other than that one plagiarized post of yours on high energy particle physics, your "position" on science has never been specified. NoEinstein > > On Oct 16, 12:06 pm, NoEinstein <noeinst...(a)bellsouth.net> wrote: > > > On Oct 13, 1:50 pm, PD <thedraperfam...(a)gmail.com> wrote: > > > > On Oct 13, 12:39 pm, jbriggs444 <jbriggs...(a)gmail.com> wrote: > > > > > On Oct 13, 12:08 pm, NoEinstein <noeinst...(a)bellsouth.net> wrote: > > > > > > On Oct 13, 11:29 am, PD <thedraperfam...(a)gmail.com> wrote: > > > > > > PD: You are off-your-rocker. Go into a small room and talk to > > > > > yourself. No one with half a brain reads your replies. I only scan > > > > > down to your first foot-in-the-mouth nonsense. NE > > > > > So do I. Usually that results in reading clear to the bottom of a PD > > > > post. > > > > > > > On Oct 12, 7:32 pm, NoEinstein <noeinst...(a)bellsouth.net> wrote: > > > > > > > > On Oct 10, 11:28 am, PD <thedraperfam...(a)gmail.com> wrote: > > > > > > > > Dear Side-Stepping PD, the Parasite Dunce: WORK is NOT the same as > > > > > > > KE! > > > > > > > The contribution to the energy that changes KE is called work. Please > > > > > > consult your 7th grade science book. > > > > > This one gave me pause. It's too causal for my taste. It implies > > > > that if two opposite forces act on a uniformly moving object that > > > > neither of them do any work since neither of them change KE. > > > > Fair point. Net work is what is usually referenced in the Work-Energy > > > theorem. > > > > > One can argue that this definition isn't quite right for non-rigid > > > > bodies and that it requires clarification for rotating bodies. > > > > Well, as for the latter, I didn't specify *linear* KE, but again the > > > point is taken. > > > > > Still, it's not a bad starting point. A simplification suitable for > > > > pedagogical purposes. Especially when the discussion doesn't involve > > > > rigidity or rotation. And if you read it just right, it is equivalent > > > > to what I consider to be a good definition. > > > > > Me, I define work as the vector dot product of instantaneous point > > > > force times the incremental motion of the target object at the contact > > > > point integrated over the life of the force. If it's not a point > > > > force, you can integrate over the contact area as well. > > > > Agreed, but NoEinstein won't be able to look that up in his 7th grade > > > science book. > > > > > I've had discussions previously with folks who think that you're > > > > supposed to do a path integral of force times incremental movement of > > > > the force along a path. That's wrong. It's force times incremental > > > > movement of the object to which the force is applied. For point > > > > objects it's the same thing. For extended objects it's not. > > > > For *linear* KE, I see the distinction.- Hide quoted text - > > > > - Show quoted text - > > > Science is what I figured out over a lifetime, not something I needed > > to 'look up' anywhere... like you do. NE > > Perhaps you should use a different word, other than science. Because > your activity bears no resemblance to science and does not meet the > criteria that is used by scientists do define that word. > > Just because you decide to putter with pipes and water in your > backyard does not give you the right to claim what you learn from that > hobby to be expertise in plumbing. > > PD- Hide quoted text - > > - Show quoted text -
From: NoEinstein on 19 Oct 2009 15:52
On Oct 16, 3:40 pm, Jonah Thomas <jethom...(a)gmail.com> wrote: > NoEinstein <noeinst...(a)bellsouth.net> wrote: > > Jonah Thomas <jethom...(a)gmail.com> wrote: > > > NoEinstein <noeinst...(a)bellsouth.net> wrote: > > > > Dear Dougie Boy, the leech: Not a soul in the world cares about > > > > having your... 'respect'. Mentally, you are a NON entity. NE > > > > It's an unmoderated newsgroup and you have the right to post as you > > > see fit. > > > > But that was unkind. > > > Dear Jonah: Though I am a nice person (to nice people), Dougie Boy, > > the leech, deserves only the disdain of the readers for his psychotic > > negativity in the face of new science truths. People like him are the > > black spots on these groups. > > He deserves your pity. But if he threatens your self-esteem then it's > understandable you would not feel merciful. Dougie Boy threatens only the time I spend keeping him in his place. NE |