Re: [asa] geocentricity

Since motion is relative, one could declare the earth to be fixed, center
one's coordinate system there, and, in theory, rewrite the laws of physics
using those coordinates. Then attribute to the rotation of the heavens
what is due to that of the earth. If you didn't want to do physics or
astronomy, you would see no reason to change, but if everyone had taken
this approach, many areas of physics would not have advanced since the
fifteenth century because it would look too complicated. Since not much
physics can be developed from it, we can't give many examples of what
geocentricity accurately predicts.

Gordon Brown (ASA member)

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Received on Thu Jul 5 14:11:12 2007