awarnes

I believe momentum is shared between the four force as in angular momentum. Here is an online e=mc2 calculator.

http://www.endmemo.com/physics/einsteinlaw.php

 

http://www.scienceforums.net/topic/103840-if-gravity-is-a-separate-force-then-how-can-it-exist-without-the-other-3/

Am i right in believing then that there are no real-world applications of the equation. That it is only used in further derivations of other equations?

I've been doing some research into Einstein's equation E²=(mc²)² +(pc)² but apart from in nucleur reactions, where you can use the simpler E=mc² as momentum=0, I have been unable to find any applications.

Thank you in advance