On Aug 19, 2009, at 2:26 PM, Horace Heffner wrote:
On Aug 19, 2009, at 1:19 PM, Harry Veeder wrote:
www.physic.ut.ee/instituudid/efti/.../KuullaagerMootorAJP1978.pdf
The entire paper can be downloaded by clicking the link as it
appears in
the search results.
It contains lots of math.
Harry
Thanks for that!
The URL is:
http://www.physic.ut.ee/instituudid/efti/loengumaterjalid/elmag/
KuullaagerMootorAJP1978.pdf
http://tinyurl.com/n6p5sc
It appears Gruenberg made exactly the same mistake I did. He forgot
to account for conservation of angular momentum (COAM). His theory
predicts the balls can produce self rotation without interaction with
any external body. Since all the balls rotate about the same axis,
namely the x axis in his paper, aligned with the axis of the shaft, a
net angular momentum is continually conferred upon the balls and
then, through friction, to the motor mount. My theory does exactly
the same thing, except it also indicates similar (but canceling in
the sum for the two raceways) self-forces developing in the raceways.
I already tested this possibility, that COAM is violated by the
motor. I found it was COAM was not violated and therefore my theory
was bogus. Here again is the test result:
- - - - - - - - - - - - - - - - - - - - - - - -
Since the motor is a bit strange I decided today to do a quick test
for conservation of angular momentum. I remounted the steel bearing
motor vertically for the test, and spun it up with a Dremel tool, and
started the power. The film says it all. No significant COAM
violation. However, as the unit rotates a bit you get a view of the
battery and makeshift splashguard and get to see the motor run fairly
fast. Not much compensation for watching, I know! 8^)
http://www.youtube.com/watch?v=6OdBa8bZHl8
http://tinyurl.com/r7e5gu
- - - - - - - - - - - - - - - - - - - - - - - -
After reflecting on this a while, and after much internal conflict
and some further experimentation, I came to accept the inevitable
conclusion that my theory was bogus, and posted so here.
Best regards,
Horace Heffner
http://www.mtaonline.net/~hheffner/
