Compressed Air
The air engine is an emission-free piston engine using compressed air as fuel. Unlike hydrogen, compressed air is about one-tenth as expensive as fossil oil, making it an economically attractive alternative fuel.
Read more about this topic: Alternative Fuel
Famous quotes containing the words compressed and/or air:
“The human mind is so complex and things are so tangled up with each other that, to explain a blade of straw, one would have to take to pieces an entire universe.... A definition is a sack of flour compressed into a thimble.”
—Rémy De Gourmont (1858–1915)
“Music, in performance, is a type of sculpture. The air in the performance is sculpted into something.”
—Frank Zappa (1940–1994)
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