What a happy coincidence. I was just thinking about the analemma the other day.>> ^rottenseed:

I find it rather awesome that the tilting cycle of the earth is so close to its cycle around the sun. Is this just a coincidence or is there a force that makes these 2 cycles so close in value?
I think you misunderstand what's going on there. The Earth's tilt doesn't change noticeably during a sidereal year. The precession cycle is about 26,000 years.
Opposite hemispheres are pointed toward the sun at each solstice because the tilt doesn't change.

>> ^shuac:

Turtles all the way down.

Dang. You beat me to it.