Hi I'm new to this so please don't butcher me. I am just a enthusiastic individual with a huge interest in theoretical physics.(adsbygoogle = window.adsbygoogle || []).push({});

In GR, the Einstein field equations relate energy and momentum (I think) to curvature, then to local flat geometry (I think) my question is do the EFEs physically describe something (ie: a rotating spherical object like earth or a large nebula etc...) or are they a purely mathematical tool used to describe local geometry in relation to energy and momentum. I know the geodesic equation is needed to explain the "force" of gravity which results, i'm just wondering if they also to describe the topology as well.

I have always found this confusing, and can not seem to get a clear answer on it, thanks to anyone would cold help.

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# B Do the EFEs physically describe something

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