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Conceptual Guerilla | Central Command in the War of Ideas Economics and Politics - Paul Krugman Blog Consider the Evidence Contrarian Investors’ Journal Captain Capitalism Blog Ecocomics Ecology and Economics Until a few days ago I had no idea that people were playing with the idea of using compressed air to power vehicles. Now it looks like we may see some within the next few years. Add in a hybrid gas engine to compress more air and compressed air vehicles might go further than just city driving. But even if just for the city, and particularly if power sources come increasingly from solar and wind, the idea just might be a life saver not only for those living in very polluted cityscapes, but also for the rest of us as air pollution is a global problem. And the idea isn't limited to cars. The video below highlights both a rather conventional but all-aluminum piston engine from France, and a much smaller rotary engine design from Australia. Compressed Air Vehicles Hat tip: Barry Ritholtz at The Big Picture See also: Compressed-Air Car at Wikipedia OK.. November 9th, 2007 This car is for the naive. And earlier: Eric says: April 4th, 2007 I first read about this car in about 1995.