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Zinnia. Element. Potato Cannon. WARNING: As popular as potato cannons may be for weekend projects, they ARE weapons and can definitely inflict some serious damage on a person.
NEVER look down the barrel or press the red button without the cap on, and the barrel in a safe direction. I've seen potato guns before, and tested one for a drafting project my freshman year in high school, but I have never built one. How Spud Guns Work" At the touch of a button, an explosion hurls a projectile hundreds of feet at close to 400 miles (643.7 km) per hour, obliterating a target [source: Burnt Latke].
But the explosion isn't from a cannon or a rocket launcher. It's from a spud gun. Spud guns come in a variety of shapes, sizes and configurations. Depending on the size of the barrel, they can fire a number of common objects, including potatoes, tennis balls and polyvinyl chloride (PVC) rockets. The only requirement is that the size of the projectile fits the size of the barrel.
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