View Single Post
  #25  
Old 13-04-2009, 06:49 PM
Archy (George)
Registered User

Archy is offline
 
Join Date: Aug 2008
Location: Sydney
Posts: 142
Quote:
Originally Posted by sjastro View Post
The statement "Since the Earth is not sufficently massive to cause space-time to curve.... " should therefore be self evident.

In other words the Earth is not sufficently massive for it's diameter (or volume) to cause space time to curve.

Steven
The Earth is massive enough to curve space-time: if it were not, there would be no gravity.
Since we do experience gravity, my first statement "We all live in curved space so we don't notice it" has to be modified to:
We all live in curved space time and experience it as gravity.

Last edited by Archy; 13-04-2009 at 06:50 PM. Reason: punctuation
Reply With Quote