Game-changing rotary engine muscles a go-kart [feedly]

Imagine an engine that's 30 percent smaller than a traditional piston design of like output, and that runs smoothly, with less noise and vibration. Plus, it burns several types of fuel. That's the LiquidPiston X rotary engine, which was recently demonstrated powering a go-kart.

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http://www.gizmag.com/liquidpiston-xengine-rotary/43776/