posted on Jun, 25 2013 @ 10:51 PM
reply to post by FormerSkeptic
I'm afraid there is no geological or crustal shift of our axis to any great degree.
We do have True Polar Wander
, but that's limited to about 1 degree per million years. You
can thank our moon for that as it acts like a anchor to hold us pretty much in place.
We also have Precession
, but that does not change the actual tilt of the Earth's axis, just where
it happens to be pointed at and takes about 26,000 years to complete a cycle.
Our axis has been moved by very small amounts by very large earthquakes, but the amounts are normally measured in centimeters and not enough to have
an overall effect on the Earth's climate.
If there had been any large shift in the Earth's axis, it would be known very quickly as even the most new back yard astronomers would find all the
stars out of place......and they're not. They still line up just fine for me with my telescope when I do a manual polar alignment.
About the only way you'll get the Earth to shift on it's axis (more or less tilt) is to either smack it very hard with a very large object (and then
the energy from that impact would turn the Earth's crust into liquid rock....and we'd all be dead anyways), or you need to make the moon disappear so
that it no longer acts as a anchor.
And even if you made the moon go away, it would take quite a long time for the Earth's axis to star wandering more than it does (more than 1 degree
per million years).
edit on 25-6-2013 by eriktheawful because: (no reason given)
edit on 25-6-2013 by eriktheawful because: (no reason