hi, I have a very simple question. I am reading Bernard F. Schutz's A first course in general relativity. after completing the special relativity section I had a goal to sit down with paper and completely derive from square one the lorentz metric, four velocity and momentum, and finally come up with e=mc^2 without referring once to the book. Well I did all this quite quickly, and my result was E^2=m^2 at rest or E=m at rest.(adsbygoogle = window.adsbygoogle || []).push({});

I wanted to corroborate my result with those who would know, is this a result of time being in different units involving c, or is it an error to simply come up with e=m, or both?

If you need more details for my derivation let me know, and also if you can show how this turns into e=mc^2 with normal time please do so.

sorry if there's a similar post

thanks,

matt

**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!

# E^2 = m^2

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