Re: Planets and Stars - an idea
- From: Brian Davis <brdavis@xxxxxxxx>
- Date: Fri, 17 Apr 2009 09:47:44 -0700 (PDT)
Hmm. You're actually serious, not just trolling, aren't you?
You might want to take a very basic astronomy course. It's pretty easy
to show that either the Earth moves around the Sun, or the Sun moves
around the Earth. All you really have to do is compare the where the
Sun appears in the sky relative to the stars around it (or since you
can't see the stars when the Sun is up, try looking at the stars that
are on the eastern horizon just before dawn). It's also really easy to
see that the Earth isn't going to change its tilt, because it takes a
torque to change the axis of rotation of a spinning object... as you
can demonstrate to yourself by trying to suddenly push over a spinning
top or gyroscope. It's a little hard to figure out exactly what you
think might be doing the seasonal variations in your post, but a
little bit of reading, and a little bit of experimentation, really
should put you right. After all, the greeks managed it without
anything more advanced than the eye and the brain.
--
Brian Davis
.
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