project of the month

25 MPH on a Propeller-Powered Skateboard

From our Instructables group, a great summertime project

The retro-futuristic design of this skateboard was inspired by the look of rocket ships in old cartoons. Ryan Bavetta used a jigsaw to cut out the sleek deck and then mounted a propeller and 3.7-horsepower engine from a model airplane on the back to power it. A handheld remote controls the engine throttle, which can move the board 25 mph or more wherever he wants to go.

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November 2009: Astronaut 3.0

Inside NASA's astronaut bootcamp and the grueling new training regimen for deep space. Plus, ten young geniuses shaking up science today, one writer's quest to analyze every man-made chemical in her body and more.

Check out the issue's full contents online here

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