<P> In physics , mass -- energy equivalence states that anything having mass has an equivalent amount of energy and vice versa , with these fundamental quantities directly relating to one another by Albert Einstein 's famous formula : </P>
<P> In physics , mass -- energy equivalence states that anything having mass has an equivalent amount of energy and vice versa , with these fundamental quantities directly relating to one another by Albert Einstein 's famous formula : </P>
who showed that mass and energy are related
who showed that mass and energy are related
Albert Einstein
Albert Einstein