Freshwater Pearls, Knives, Hippo Roller

How Do They Do It? poster
How Do They Do It?
19th December 2017 22 mins Season 15 Episode 17

How do they grow America's only freshwater pearls in Tennessee? How are the world's sharpest knives made, and how do they forge the world's sharpest knives?

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Sugar, Feather Dusters, Balloons still
Season 15 · Episode 18

Sugar, Feather Dusters, Balloons

How do they turn ugly root vegetables into sweet sugar? How do they make feather dusters? And, how do they make billions of balloons to keep parties popping?
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