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IPFS News Link • Entertainment: Outdoor Recreation

Backyard Vortex Cannon Shoots Rings Of Fire

• popsci.com

A vortex cannon is a simple device. With a flexible, airtight membrane on one end and a tapered opening on the other, a person can pull back on the cannon and send a surprise gust of air at an unsuspecting passerby. Here's what that gust looks like from a custom-built trash can-sized vortex cannon:


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