E=Mc^2 bears no relationship with "slowing energy down".
That equation indicates that the equivalent energy that could be extracted in a perfect transformation is equal to the mass of the matter time the speed of light squared.
Einstein's Theory of General Relativity is complicated.
__________________
--
Man Alone
=======
Abstainer: a weak person who yields to the temptation of denying himself a pleasure.
Ambrose Bierce, The Devil's Dictionary.
|