Darren New wrote:
> Name energy that isn't in the form of mass?
> Then explain what E=mc^2 means.

Light isn't in the form of mass.  Sound isn't in the form of mass. 
Electricity isn't in the form of mass.  Magnetism isn't in the form of 
mass.  And so forth.

E=mc^2 means that the amount of energy stored in a given mass can be 
determined by multiplying the mass by the speed of light squared.  It's 
like...a bank account.  The number in the bank's computer that says how 
much is in the bank account is not the same thing as however many 
physical dollar bills and change, but they are treated as equivalent.

-- 
Tim Cook
http://home.bellsouth.net/p/PWP-empyrean

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