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Spangler: The science behind a potato launcher

A table filled with potatoes, PVC and safety glasses can only mean one thing – our science guy Steve Spangler is in the house.

A table filled with potatoes, PVC and safety glasses can only mean one thing – our science guy Steve Spangler is in the house.

It's a lesson in air pressure, innovation and how to avoid getting hit.

Want to make your own potato launcher? Here are Steve Spangler's step-by-step directions.

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