alt.energy.renewable

On Mar 9, 2:38=A0am, Dan Bloomquist wrote:
> daestrom wrote:
>
> > But if we don't let it move north (constrained by the 'track'), then
> > whatever retarding force we are applying in the east-west direction is
> > translated to the north-south direction against the track. =A0These forc=
es
> > may increase friction in 'real' bearings, but let's assume 'ideal'
> > bearings so this addtional force against the shaft doesn't slow the spin=

> > of the gyro.
>
> But, from what I understand, w does change as you alter the particle
> path of the rotor.
>
> > The force against the track in the north-south direction
> > moves through zero distance so no work there. =A0But our retarding force=

> > in the east-west direction is adjusted to allow the shaft to tilt west
> > at something less than one revolution per day so we have a force working=

> > through an angular displacement and have work.
>
> There is a curious phenomena that if you force a gyroscope to move on a
> single axis, it will brake free, stop resisting the torque. I'd
> forgotten but now recall being there playing with a gyro.
>
> See: Captive (one degree of freedom) gyrohttp://www.upscale.utoronto.ca/IY=
earLab/gyroscop.pdf
>
> But this seems to creates a contradiction to conservation of angular
> momentum. Spin up a gyro oriented to the poles which transfers momentum
> to the earth. Push it around on a single axis, broken free from torque,
> 180 degrees. Now brake the rotor and you have added even more angular
> momentum to the earth!??
>
> What am I missing?
>
> Best, Dan.

The Earth does not move around th Sun like a train on a track,a given
location will turn through 360 degrees with resprect to the Sun over
the course of 365 days 5 hours 49 minutes .

Axial tilt is nothing more than rotational orientation and certainly
it has less to do with gyroscopes which are a childish distraction
more than anything else.If you can grasp that rotational orientation
just keeps a planet pointing in one direction in space,then you can
treat the change in orientation to the Sun as an orbital
component .Try Uranus -

http://ifa.hawaii.edu/~barnes/ast110_06/quizzes/disc02_fig01.png

If you cannot see that there is a new orbital component to be applied
to the Earth from the graphic above then try actual images showing how
a location changes with respect to the Sun over an annual orbit -

http://asymptotia.com/wp-images/2007/08/uranus_rings.jpg

I think you may be so in love with the late 17th century jargon of
conservation of this and that ' law ' to notice a new motion which can
be applied to the Earth by extracting the information from the motion
of the Equatorial rings above.I also feel that it is now too late to
do anything about it,at least among those who consider themselves
'scientists'.



=2E