The science behind those super powerful T-shirt cannons you see at baseball games

Nothing can bring a crowd of fans to its feet quite like a T-shirt cannon. We were curious about the inner-workings and maximum capabilities of the beloved launcher of XXL-sized branded swag, so we headed to New York City's Citi Field — home of the 1986 World Series champs, the New York Mets — to see the cannon in action and test out its fire power. 

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