Celestial navigation is based on the premise that the Earth is the center of the universe. The premise is wrong, but the navigation works. An incorrect model can be a useful tool.

Kelvin R. Throop (contemp.) Fictional bureaucrat, epigrammist [collectiive pseud. for various Analog magazone authors]
(Attributed)
Added on 1-Feb-04 | Last updated 1-Feb-04
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