Best Inventions of 2007
From the phone that has changed phones forever, to futuristic cars, to a building made of water, to a remote-controlled dragonfly — a dazzling display of ingenuity
The Return of Steam
The future of automotive technology may lie in the past. Bruce Crower, 77, an auto-racing designer with a thriving business in San Diego, has invented a hybrid steam engine in which water is sprayed into a traditional gasoline-powered cylinder, turning waste heat into usable energy. How much energy? Enough to travel 40% farther on a gallon of gas.
Available: Prototype
crower.com
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