So what exactly E=mc^2 says ?? ok all know E=mc2. but apart from that small matter is equi to huge amount of energy what other things can be derived. 1) how could matter directly relate to energy and not individual elements like Uranium, hyd etc. doesn't it mean that all elements and made of one and only one basic element and hence we can say n * basic element = m ,so E= n* basic element * c^2. what do you guys think ?? if u feel its bogus then explain me how u relate 1gram Uranium produces same energy as 1 gram hydogen asuming the energy conversion is done 100%.