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| Today on Engineering: |
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| | | How Zippers Work - Better than buttons? Maybe. Less time-consuming than laces? Definitely. As far as fastening mechanisms go, the zipper is a work of art. Learn exactly what makes up a zipper and how it all fits together so perfectly.
| | | How Roller Coasters Work - They don't have engines, accelerators or brakes. So what makes roller coaster cars speed up, slow down and loop upside down? Get the inside track on the quintessential thrill ride.
| | | How Bowling Pinsetters Work - If you've ever been to a bowling alley, you know that one of the coolest things is how the pins get reset. How does it work? Take a peek at the machinery behind the scenes!
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