The Best Episodes of How Do They Do It? Season 9

How do they transform rubber into chewing gum; how do they make fish hooks strong enough to catch a shark; and how are the models built at the world's largest...

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How do they build Formula 1 racing cars; how do they make the Leatherman, America's best-selling multi-tool; and how do they create classic Finnish Aalto glassware?

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Panama hats; rounding up Florida's escaped pythons; keeping drivers safe in the world's longest tunnel.

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How do they build working miniature airports? How do they design houses to survive hurricanes? How is rhubarb cultivated in the dark?

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How do billions of bees produce tonnes of California almonds? How do they clear the snow to keep Norway's planes in action? How are tricky stains removed?

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How is a modern fighter jet built? How do Belgium's Trappist monks make the world's finest beers? How do they build America's best performing SUV?

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How do volcanoes help produce the world's best guacamole? How do they build trucks that can cross swamps? How do they make the world-famous Fiskars scissors?

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How do they make steel cables strong enough to hold up a 50,000 tonne bridge; why do modern hunters use medieval weapons; and how do shops know which clothes sizes...

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How do they make Tennessee whiskey the traditional Lincoln County way? How do night goggles work? How do the Finnish relax in 160-degree saunas?

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How do they grow enough vanilla to make the world's favourite ice cream flavour? How are anchors for huge ships built? How are 12 million lighters made every year?

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How do they craft footballs for the National Football League? How do they farm mussels? How do they design the ultimate fighter pilot's helmet?

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How are powerful Scania trucks built? How do they use the world's biggest DNA database to solve crime? How is paraffin used to make Gouda cheese?

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How do they make the finest classical guitars? How do they keep the blades turning on a wind turbine? How do they produce America's ultimate mowing machines?

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How can lifeboats hold up to 150 people? How can mind control techniques help golfers improve their shots? How do they make millions of celebratory stamps?

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How do they produce tequila from cactus plants in Mexico? How does New York City run on steam? How do they produce soft ice cream?

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How stuntmen survive a day of being knocked down and beaten up; how they make a watercraft that can swim like a dolphin; how they mine precious amber.

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How is NYC supplied with the finest steaks? How do they produce the ultimate surround sound home cinema systems?

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How is viscose transformed into clothing and cloth? How do they produce the world's favourite fizzy drinks? How do they make traditional English snuff?

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How do they build the world's most expensive cable cars? How is vodka produced from grass? How do social networks connect people around the world?

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How do skydiving suits work? How do they produce Surströmming, one of the world's smelliest foods? How do they transform weeds into walls?

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