You may not feel outstandingly robust, but if you are an average-sized adult you will contain within your modest frame no less than 7 X 10^18 joules of potential energy-enough to explode with the force of thirty very large hydrogen bombs, assuming you knew how to liberate it and really wished to make a point. Everything has this kind of energy trapped within it. We're just not very good at getting it out. Even a uranium bomb-the most energetic thing we have produced yet-releases less than 1 percent of the energy it could release if only we were more cunning.
( Bill Bryson )
[ A Short History of Nearly ]
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