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Episode 1: Underground World, Gunmakers
2010-06-0422 min
Head underground into America's largest mine to find out how lead is extracted. And how do they manufacture and test made-to-measure shotguns?
Season guide
How Do They Do It? Season 7 — Episodes and Where to Watch
20 episodes · first aired 2010-06-04
TMDB does not provide a season overview.
Episode guide
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Episode 2: Diggers, Taste Of The Orient, Into The Void
2010-06-1022 min
How do they operate the world's most versatile construction machines? Plus, how do they maintain the Willis Tower Skydeck in Chicago?
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Episode 3: Peanut Butter, Breaking Point
2010-06-1122 min
How are peanuts harvested, roasted and transformed into peanut butter; and how are domestic appliances tested?
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Episode 4: Smooth As Marble, Hot Stuff, Umbrellas
2010-06-1822 min
How do they mine marble for Washington's monuments; how do they make Tabasco Sauce; and how do they produce storm proof umbrellas?
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Episode 5: Tales From The Black Stuff, Silk, In The Can
2010-06-2522 min
How do they make Irish stout and how do they use silkworms to create gunpowder bags and clothes? Plus, how do they put soup into cans?
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Episode 6: Fire Extinguishers, Cruise Liner
2010-07-0222 min
How are phosphates used to put out fires; and how are cruise liners fuelled up and stocked with supplies before a voyage?
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Episode 7: Aircraft Tyres, Six Shooters, Fever Pitch
2010-07-0922 min
How do they make aeroplane tyres; how do they fire the fastest guns in the west; and how do they make artificial turf for football pitches?
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Episode 8: Soft As Sponge, The Knowledge
2010-07-1622 min
In this episode, learn how they dive for sponges and how taxi drivers know their way to so many different destinations.
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Episode 9: Money Movers, Catch Of The Day, Amazing Grace
2010-07-2322 min
How do they transport cash securely; how do they land big game fish; and how do they produce bagpipes?
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Episode 10: Crash Testing, Books Etc, Margarine
2010-07-3022 min
How do they design cars that will protect you in a crash; how do they print a bestseller; and how do they transform oil into margarine?
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Episode 11: Whisky Galore, Disaster Prevention
2010-08-0622 min
How is water transformed into whisky; and how are they preparing for another natural disaster like Hurricane Katrina?
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Episode 12: Sugar, Fish Farming
2010-08-1322 min
How do they transform raw cane into sugar; how do they farm fish; and how do they create tailor made suits that are ready within the day?
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Episode 13: Money, Shoe-In
2010-08-2022 min
How are banknotes designed and printed; and how is leather hide transformed into pairs of shiny shoes?
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Episode 14: Battery Power, Chocolate, Toothbrushes
2010-08-2722 min
How do they make toothbrushes; how do they produce millions of car batteries; and how are cacao beans transformed into chocolate?
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Episode 15: Eiffel Tower, Snowboards
2010-09-0322 min
How do they carry out maintenance on the Eiffel Tower; and how do they design and build the ultimate snowboards?
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Episode 16: Decaf Coffee, Smoked Fish, Water Jets
2010-09-1022 min
How do they turn coffee beans into decaffeinated coffee; how do they smoke fish; and how do they use water to power ships?
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Episode 17: Blaze Cops, Oaked
2010-09-1722 min
How do investigators establish the cause of a fire; and why are oak barrels important in traditional French winemaking?
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Episode 18: Lawnmowers, Bread, Clean Water
2010-09-2422 min
How do they build the world's fastest lawnmowers; how do they set the price of bread; and how do they use coconuts to clean water?
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Episode 19: Matches, Chrome
2010-10-0122 min
How do they produce millions of matches; and how do they buff and polish chrome for the perfect shine?
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Episode 20: Off-Roaders, Saddles, Cakes
2010-10-0822 min
How do they build the best off-road cars; how can cowboys stay on a bucking bronco; and how do they transform flour into cakes?
Series, season and episode metadata is supplied by TMDB. No season-specific provider claim is made on this page.