Coke and Mentos Drive New Rocket Car

From TG Daily:

We're not sure about its green credentials, but this is one alternative car. Powered only by Coke and Mentos, it has an impressive 221-foot range. The feat required 108 bottles of Coke Zero and 648 Mentos. The car uses a piston mechanism: a six-foot long rod sits inside a six-foot long tube attached to each bottle of Coke Zero. When the Mentos drop into the soda, the pressure tries to push the rod out of the tube.

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