Modern Marvels

Season 18, Episode 12: Convenience Stores

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160 million Americans visit a convenience store every day. Why? Because it's fast. But what you probably didn't know is how every detail of its design has been engineered to work that way. Step inside one of the busiest 7-11's in America and find out what makes it tick. And go behind the scenes to see how favorite innovations–like slurpees, turbo ovens, and beef jerky–are made. The science of convenience will amaze you!