----- Original Message ----- From: Horace Heffner <[email protected]> Date: Tuesday, August 4, 2009 1:41 am Subject: Re: [Vo]:Marinov BB motor test problems
> > On Aug 3, 2009, at 4:15 PM, Harry Veeder wrote: > > > > > > > ----- Original Message ----- > > From: Horace Heffner <[email protected]> > > Date: Monday, August 3, 2009 4:48 pm > > Subject: Re: [Vo]:Marinov BB motor test problems > > > >> > >> On Aug 3, 2009, at 11:35 AM, Harry Veeder wrote: > >> > >>> Great! > >>> > >>> now you should see if you are getting more (or less) power out > than>>> you put in to make the motor spin. > >>> > >>> harry > >> > >> Actually, that sounds like a better project for you! 8^) > > > > I lack your equipment and practical knowledge. > > > Based on the results of this experiment there are far better places > > to apply my limited equipment, practical knowledge, money and time. > > > > > > >> It can't be even close, as far as mechanical energy. The input is > >> almost all going to heat. > > > > > >> Marinov's force derived free energy > >> should > >> all show up in the form of torque, i.e. mechanical energy. I see > >> no > >> reason whatsoever to expect excess energy, or even to have to draw > >> on > >> Marinov's longitudinal force to explain the operation of the motor. > > > > I am unfamiliar with Marinov's force. Even if magnetic hyestersis > > > is the > > best explanation for the increased rotation why does the coil > heat up? > > > The nichrome coil is a resistor being fed a large current. P = i^2 > * > R. Why does a hot plate heat up? Why does an iron heat up, a hair > > dryer or an electric space heater? If you are wondering why the > coil > heated up visibly for the ordinary steel bearings and not the > stainless bearings, the reason is that with the rotating motor I > could leave the power on long enough for the coil to heat up. The > stainless steel motor shut down rotation very fast so I had to cut > off the power fast to prevent welding. Yes, that is exactly what I was wondering. So does the coil would heat up faster if the fly wheel is locked? harry > Part of the art of doing > this > experiment is keeping the current low enough that the stainless > steel > will not weld. The stainless steel bearings are very different > from > ordinary bearings. Stainless notoriously welds very much better, > because the surface doesn't quickly pacify by oxidation like > ordinary > steel. > The art of this experiment is getting things to run without > > destroying the stainless bearings by welding. This means running at > > the lowest possible current that gets clear results. > > One of the best practical things I learned is powdered graphite > lubricant, which comes in little tubes that look like toothpaste or > > ointment tubes, greatly reduces welding and surface destruction due > > to arcing, while having little effect on the resistance of the > bearing. It also had a very positive effect on my locks, which were > > long overdue for lubricating, so something practical came of this > experiment! 8^) > > > > > > > If the system were generating electricity and adding it to the > > supplied > > current this would cause the coil to heat up. > > > > > >> The magnetic hysteresis explanation looks far more credible, and > >> definitely more conventional to me. > >> > >> I have far better designs to test for non-conservative forces, > if I > >> > >> can ever get around to implementing them. > > > > Harry > > > > Best regards, > > Horace Heffner > http://www.mtaonline.net/~hheffner/ > > > > >
