Hi everyone,(adsbygoogle = window.adsbygoogle || []).push({});

Defined the Fermi Normal Coordinates (which can be seen for example http://relativity.livingreviews.org/open?pubNo=lrr-2011-7&page=articlese10.html" [Broken]) is there any heuristic argument to explain why the area element is something proportional to the element of solid angle? I was trying to find a way to avoid the need to compute explicitly the area element in order prove for the first and third results of Eq.17.26 of that reference...

Any ideas?

Thank you

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

Dismiss Notice

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!

# Fermi Normal Coordinates

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