On Sat, 20 Dec 2008 13:42:01 -0800 (PST), oriel36
wrote:

On Dec 19, 9:34*pm, Sanforized wrote:
oriel36 wrote:
On Dec 19, 4:40 pm, Antares 531 wrote:

We still don't know what causes these Milankovitch cycles. It is
probably related to solar output variations, but that is still not
proven.
Gordon

Aim a lot lower - try not knowing what causes the basic hemispherical
seasonal variations in daylight/darkness and that dismal fact is a
100% certainty

I fear your "basics" are still too sophisticated for them.

Yes.

I asked them to recognize two specifics 360 degree motions with
respect to the central Sun from direct observations of another planet
and they cannot manage that -

http://hubblesite.org/newscenter/arc...999/11/video/b

A planet's daily rotation through 360 degrees generates the day and
night cycle while the separate slow turning of a location through 360
degrees with respect to the central Sun,seen by the longitudinal
motion of the Equatorial rings is responsible for seasonal variations
in daylight/darkness -

http://astro.berkeley.edu/~imke/Infr..._2001_2005.jpg

Copernicus did not have the availibility of telescopes to reason it
out via planetary comparisons how to explain the seasons in a more
productive way that the 'axial tilt' explanation which is still used
today.Extracting that 360 degree orbital component is indeed tricky as
it exists over and above orbital motion around the Sun yet I doubt if
even the Mensa crowd could interpret the images above of Uranus and
apply the same principles to the Earth thereby affirming a new way to
explain the seasons.

I have no disagreement with what you've said, in general, but it
remains to be proven that these cycles aren't in some way linked to,
or caused by some core activity within the sun, such as magnetic
fields, mechanical oscillations of the solar mass due to the thermal
effects (solar throbbing with 107,000 year cycles), etc. Any and all
of these could be a part of the Milankovitch cycles. Do all these
cycles in some way work together to cause the solar output to vary
such as to produce the earth's climate cycles with those ice core
recorded 107,000 year periods? Gordon