On Feb 18, 3:12=A0am, Eric Gisse
> On Feb 17, 10:42 pm, "Y.Porat"
>
> [...]
>
> Why is it so difficult for you to understand that E=3Dmc^2 is a limiting
> case?
Dear Eric
I don't understand this comment. What do you mean when you say that
"E=3Dmc^2 is a limiting case?" Thank you.
Pete