bobcook39...@hotmail.com <bobcook39...@hotmail.com> wrote: Neutrons would change their mass if they approach the speed of light. If > they happen to circulate in a coherent system they may become more massive > based on their velocity in the system. I doubt that rest mass changes any. > IMHO a neutrons mass is related to the mass of the electrons and positrons > that make it up, plus the binding energy that keep the electrons and > positrons together. >
Ah. So the environment of the deuteron changes the mass. It is unlike other atoms. Interesting. I can't judge, but I see what you mean. - Jed