For Oriel36: Winter is Coming (unpredictable seasons) - Sixty Symbols

On Friday, May 16, 2014 1:04:43 AM UTC+1, Sam Wormley wrote:
For Oriel36: Winter is Coming (unpredictable seasons) - Sixty Symbols

http://www.youtube.com/watch?v=bHVkR3s9KX0

To understand why temperatures fluctuate across 6 months (summer to winter) requires a detour to the North/South polar coordinates where they experience a single day/night cycle with orbital twilight and dawn at those points in either March or September. All day/night cycles are explained in terms of rotation hence the Earth has dual surface rotations to the central Sun just as Uranus is seen to move South to North in its daily rotation and East to West as a function of its orbital motion -

https://www.youtube.com/watch?v=612gSZsplpE

So Sam,now that you have returned there is an opportunity to look at these things properly and that the source of the seasons is exactly the same as the reason why natural noon cycles vary from one cycle to the next. It requires only a slight adjustment in considering the polar day/night cycle as a separate rotation and although Copernicus did present outlines of this in his Commentariolis he opted for the less satisfactory 'tilt' explanation in De Revolutionibus -

"The third is the motion in declination. For the axis of the daily rotation is not parallel to the axis of the great circle, but is inclined to it at an angle that intercepts a portion of a circumference, in our time about 23 1/2ø. Therefore, while the center of the earth always remains in the plane of the ecliptic, that is, in the circumference of the great circle, the poles of the earth rotate, both of them describing small circles about centers equidistant from the axis of the great circle." Copernicus ,Commentariolis 1514

To listen to that guy talk about the Earth leaning towards and away from the Sun in the 21st century is quite dismal insofar as the decree of inclination serves a specific purpose in defining planetary climate within a spectrum.It just needs a different type of individual who knows the importance of these things but just hasn't shown up yet.