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74Spaceships That Never Were
Since the inception of the U.S. space program there have been many novel launch vehicles and spaceships that were designed and seriously considered by NASA, but for one reason or another fell by the wayside....
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61Puerto Rico's electricity problem and no green efficient solution...
Hurricane Irene did almost nothing to Puerto Rico, yes there were very strong winds and not a lot of thunder or shower storms, but a 22% of the Puerto Ricans were without electricity for more than a week and still most of the people are without...
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53Energy From The Deep Earth
Just 1.5 kilometers deep in the basement, the water is 140 º C and can be used for heating, not electricity production. At 5 km, however, exceeds 200 º C. A heat source can be transformed into electricity,...
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