Norman Wells coughed up some electrons that declared:


Albert says he's not very good at maths but will take your word for it.
However, he's quite good at logic, and he says that you're barking mad if
you think the energy is stored as an increase in mass.

Do you have a degree in physics then?

Have a look at this:

http://en.wikipedia.org/wiki/Mass%E2...gy_equivalence

Specifically:

"In relativity, removing energy is removing mass, and the formula m = E/c2
tells you how much mass is lost when energy is removed. In a chemical or
nuclear reaction, the mass of the atoms that come out is less than the mass
of the atoms that go in, and the difference in mass shows up as heat and
light with the same relativistic mass. In this case, the E in the formula
is the energy released and removed, and the mass m is how much the mass
goes down. In the same way, when any kind of energy is added, the increase
in the mass is equal to the added energy divided by c2. For example, when
water is heated in a microwave oven, the oven adds about 1.11×10?17 kg of
mass for every joule of heat added to the water."

If you feel that's wrong, you should probably go and correct it...