Originally Posted by Sumo
So you were just trolling.
And if I'm reading your post correctly we're saying the exact same thing. The north or south pole is always pointing at the same point in space, causing the change in where on earth is receiving the direct sunlight during its orbit.
I was just pointing out that while nearly everyone knows that the seasons are switched between the hemispheres, the actual physical explanation of that is not that trivial.
For instance, why does the axis of the rotation not change with respect to the orbital plane? I think this is a result of some gyroscopic effect, but I am not sure.
Take the Moon, for example. It is phase-locked with the Earth -- we never see "the dark side" (it is not really always dark, of course). Why does not the same thing happen with the Earth with respect to the sun?