On Fri, 12 Apr 2013, Terry Blanton wrote:
Just one other statement. Magnets in repulsion can be made to appear
to be successful in a magmo. But the magnets are degraded in each
cycle of the motor, much like striking the magnet with a hammer in
each cycle. Eventually it fails.
That might be the key to making a successful toy: a "PM machine" which
runs for impressively long time, then needs refueling. Some toys even
create millionaires.
If the toy could use ceramic or alnico magnets which become weakened, then
the owner could easily "refuel" by using a neo magnet to restore the
pattern of poles which powers the flywheel. No expensive cap-discharge
magnetizers needed, so the selling price wouldn't exclude it from toy
catalogs. The work done by your hands is re-magnetizing the magnets and
then powering the flywheel.
From older msgs: in a cycle, move two repelling north poles apart, then
weaken one or both, then bring them back together. They will accelerate.
But normally the poles will be weakened when forced into close separation,
and that decellerates the motion. Also, the process of demagnetizing a
magnet will require work and produce heating, so the energy being produced
by the weakening flywheel must be more than enough enough to power the
demagnetizer mechanism. A simple rotor-stator might be found to
accelerate, if built from both ceramic and neos, or from two materials of
differing hysterisis curves, or from poles of asymmetric sizes (wide ones
interspersed with narrow ones.) Or perhaps a pair of stacked rotors could
do it more easily, or concentric cylinders.
Magnetic motors working in attraction mode do not degrade the magnets;
but, my experience is that the cycle is conservative.
That mode might be harnessed also: in a cycle, bring two ceramic magnet
poles together in attraction, use a tiny neo magnet to weaken one, then
let them coast apart to their original separation.
The big question: which industry is more likely to attract workshop
break-ins or murder attempts: the free energy biz, or the cutthroat toy
biz? :)
(((((((((((((((((( ( ( ( ( (O) ) ) ) ) )))))))))))))))))))
William J. Beaty SCIENCE HOBBYIST website
billb at amasci com http://amasci.com
EE/programmer/sci-exhibits amateur science, hobby projects, sci fair
Seattle, WA 206-762-3818 unusual phenomena, tesla coils, weird sci
