Best Science Fair Project (2012)

Joe Hudy's extreme marshmallow cannon

The Secret Service was less than thrilled, but how do you keep POTUS from playing with a big air-powered PVC gun at the White House Science Fair? At the February event, President Obama found 14-year-old Joe Hudy's extreme marshmallow cannon, which fires relatively harmless s'more stuffing up to 176 feet, as fascinating as we do. The Phoenix teen is no one-trick pony; he holds two editors' choice awards from Maker Faire and has launched a small business selling one of his other inventions, a kit to make a 3x3x3 LED Cube Arduino Shield. Your computer makes it light up, and that's all we know. We might stick with the candy gun.


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