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As the smoke cleared, Kyle Mcallister <[email protected]> mounted the barricade and roared out: > > Since a = f/m, and m is constant, if there is a > > force in one direction only, > > then that force should accelerate the mass while it > > operates. That acceleration > > should increase the speed, which should then remain > > constant until the next > > acceleration pulse. IOW the speed should increase in > > steps. > > It may be that there is a way to make it accelerate. I > don't know. But what Laithwaite/Dawson say, and as far > as I can tell, what happens in their setup is this: > > 1. Mass M is moved say 10 units to the right by > precession, thus (supposedly) forcelessly. F=0 at this > point. > 2. M is moved back to the left, to the starting point > inertially. As it accelerates, the trolley moves to > the right, say, ultimately 2 units. Velocity of the > entire system is towards the right. > 3. When M reaches the starting point, it is stopped, > decelerating, thus cancelling the previous > acceleration. The velocity is now zero again, but the > trolley is 2 units to the right. > 4. Repeat. > > Each cycle, the velocity ends as zero, but a 'net' > constant velocity is attained based on the > acceleration imparted to M, and its mass ratio versus > the rest of the trolley. As far as I see, there is not > a net gain in velocity over time, so no additive > acceleration. You get 'displacement' over time, > however, each cycle moving the trolley's center of > mass 2 units to the right. Assuming, of course, that > it does work. I don't know if it does or not. > > --Kyle Is there an animation of this? There should be. - -- grok. - -- *** FULL-SPECTRUM DOMINANCE! *************************************** * BOYCOTT BOURGEOIS MASS-MEDIA: * McNews: UNfair & UNbalanced * * Get mediaworx for your group/Internet/pirate tv/radio station! * **** Critical endorsement only **** Most sites need donations *** * http://www.deepdishtv.org/shocking Shocking and Awful * * http://hijackingcatastrophe.org Hijacking Catastrophe * * http://www.empowermentproject.org/pages/panama.html Panama * * http://www.janisian.com Janis Ian Free MP3s *** Deception * * http://www.activistmediaproject.net Activist Media Project * * http://www.justicevision.org JusticeVision * * http://www.peoplesvideo.org Peoples Video Network * ************ HEY, KIDS!: JUST SAY *NO* TO DRAFTS! *************** GPG fingerprint = 2E7F 2D69 4B0B C8D5 07E3 09C3 5E8D C4B4 461B B771 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAknJn34ACgkQXo3EtEYbt3HSDwCgjb7aPVZgVDFdO/kNKL1AmMrC AWQAnAqTGr6YXVhiwaiTgGY0G3aj65nZ =/H5i -----END PGP SIGNATURE-----
