Re: [Phys-L] Sun going around the Earth?

[brian whatcott <betwys1@sbcglobal.net>]

There *is* an argument that some things may be relative, while others 
are absolute. Consider translation versus rotation for example.   A 
spinning object demonstrably tries to maintain directional rigidity in 
absolute space coordinates, in a manner of speaking.
 This is another way of describing why a long pendulum swinging in a 
plane, shows the plane rotating after some hours of inspection. The 
Earth rotates, but its plane dfoes not.

Brian Whatcott

On 3/25/2015 8:31 PM, Diego Saravia wrote:
> Its a language problem
>
> there is nothing in "the reality" that tells you that something is going
> arround other thing or viceversa.
>
> movements are relative.
>
> ok, its easiest  to explain in one way than in other.
>
> ok. language is important ... for the mind
> how the universe computes (in which coordinate system) ? I dont know, I
> cant know. It does not show us.