While the I download the latest copy of Psi I went outside for a smoke, and deduced the angle of the Earth's axis from the position of the sun. If you tracked the position of the sun from sun rise to now, it comes to about a 15 degree angle against a vertical. Here's a diagram:
T
|/N
15+
/|
/ |
----P--|---- horizon
Looking east, N is where the sun is now, and P is where the sun was at when it rose. A tree (T) made a nice vertical. If the Earth's axis was at zero degrees, the sun would rise in a straight line. It doesn't. So I guess I just proved that the Earth's axis is slanted by about 15 degrees.
And they say geometry doesn't come in handy.
