Everyone's heard of it, but what does E=mc2 -- the world’s most famous equation -- really mean? And why did it change the world? 　　With brilliant period recreations, NOVA dramatizes how an obscure young patent clerk, Albert Einstein, came up with his shattering 1905 discovery that the realms of matter and energy are inescapably linked. An accessible, suspenseful epic, Einstein's ... (展開全部)