Re: [Phys-L] Something to ponder and worry about

[jbellina <inquirybellina@comcast.net>]

The Tychoian model that John mentioned did have other problems if you believed in crystal spheres.  The sphere crashed into each other.
An interesting question is what constitutes proof that the earth is in fact moving?


On Aug 22, 2013, at 6:19 PM, John Clement wrote:

> Actually just the observation that Venus is both the morning star and
> evening star, but never the midnight star shows it goes around the Sun.  But
> then there is the model where the Sun goes around the Earth and the other
> planets go around the sun.  That model is a bit more difficult to disprove.
>
> John M. Clement
> Houston, TX
>
> > Comment: Not everything is relative. Galileo showed that if 
> > everything in the solar system went around the earth the 
> > phases of Venus would not be what he observed.
>
>
> _______________________________________________
> Forum for Physics Educators
> Phys-l@phys-l.org
> http://www.phys-l.org/mailman/listinfo/phys-l

Joseph J. Bellina, Jr. Ph.D.
Emeritus Professor of Physics
Co-Director
Northern Indiana Science, Mathematics, and Engineering Collaborative
574-276-8294
inquirybellina@comcast.net