alt.energy.renewable

"David Williams" wrote in message
news:1205596349.916.1205550165@bayman.org...
>-> Again, show us where anyone has claimed that the orientation of rotation
>of
> -> the earth changes in space (except that it *does* precess with a period
> of
> -> about 26,000 years). You're ranting is totally off-topic and
> -> non-sequitor.
>
> Even the precession is irrelevant to the seasons. Our calendar is based
> on the "tropical year", which is the time between, for example, one
> winter solstice and the next. This is slightly different from the
> "sidereal year", which is the time the earth takes to go around the
> sun. The difference is due to the precession. By using the tropical
> year, we arrange for the seasons to happen at the same calendar dates
> despite the precession.
>
> Long ago, I wrote a computer program that calculated the position of
> the sun in the sky, the times of sunrise and sunset, etc., as seen from
> anywhere on earth, on any date and any time. I started from first
> principles, using the parameters of the earth's orbital and rotational
> motions. The answers the program calculated were very accurate. How
> likely would that be, if the basic model were wrong? I have never
> doubted the conventional explanation for these things, but I still
> found the accuracy of the program very satisfying. The universe was
> (and is) working as it should.
>

Blah, blah, blah. Having fun reciting grade school stuff?

So, with regards to the subject line? Your opinion is???

daestrom