Let us say there is a curved region of spacetime whose curvature is [tex]\kappa(s)[/tex]. How does one find the coordinates of the unit vector normal to a certain point on the region of spacetime? I tried searching(adsbygoogle = window.adsbygoogle || []).push({}); Hamilton's principle and the general theory of relativitybut I could not find any equation which describes the coordinates of the normal vector to the curved region of spacetime.

Thanks.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# The unit vector normal to the curvature of spacetime

Loading...

**Physics Forums | Science Articles, Homework Help, Discussion**