:::As to the second point, I find the argument somewhat circular. Is the energy equation cited verified by any experiment, or is it merely definitional? If merely definitional, then it does not provide a way for calculating actual momentum.--[[User:Aschlafly|Andy Schlafly]] 00:54, 15 October 2011 (EDT) | :::As to the second point, I find the argument somewhat circular. Is the energy equation cited verified by any experiment, or is it merely definitional? If merely definitional, then it does not provide a way for calculating actual momentum.--[[User:Aschlafly|Andy Schlafly]] 00:54, 15 October 2011 (EDT) |