How do they make a perfectly unpredictable roulette wheel? How do they produce the world’s purest olive oil? And how can a rusty wreck be transformed into a classic Batmobile?

How do they put the holes in Swiss cheese? How do they restore and improve a classic battle tank? And how do robotic librarians run one of the world’s biggest…

How do they persuade an oyster to grow a perfect pearl? How do they put the twist in classic Pennsylvania pretzels? And how do they build Venice’s traditional gondolas?

How do they make playing cards that can defeat a cheat? How do they brew a billion bottles of lager a year? And how do they make the world’s most…

How do they run Ryker’s Island, one of the biggest jails in the world? How do they make the famous Royal Mail post box? And how do they turn fruit…

How do they design and produce the ultimate kingpin bowling ball? How do they raise and lower Tower Bridge? And how do they produce millions of gummy bears a day?…

How do Japanese master chefs prepare the extremely poisonous puffer fish and avoid killing their customers? And how do Scots weave over 700 types of tartan for kilts?

How do they produce millions of matches; and how do they buff and polish chrome for the perfect shine?

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?

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?

How do investigators establish the cause of a fire; and why are oak barrels important in traditional French winemaking?

How do they turn coffee beans into decaffeinated coffee; how do they smoke fish; and how do they use water to power ships?

How do they carry out maintenance on the Eiffel Tower; and how do they design and build the ultimate snowboards?

How do they make toothbrushes; how do they produce millions of car batteries; and how are cacao beans transformed into chocolate?

How are banknotes designed and printed; and how is leather hide transformed into pairs of shiny shoes?

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?

How is water transformed into whisky; and how are they preparing for another natural disaster like Hurricane Katrina?

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?

How do they transport cash securely; how do they land big game fish; and how do they produce bagpipes?

In this episode, learn how they dive for sponges and how taxi drivers know their way to so many different destinations.

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?

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?

How are phosphates used to put out fires; and how are cruise liners fuelled up and stocked with supplies before a voyage?

How do they mine marble for Washington’s monuments; how do they make Tabasco Sauce; and how do they produce storm proof umbrellas?

How are peanuts harvested, roasted and transformed into peanut butter; and how are domestic appliances tested?

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?

How do they operate the world’s most versatile construction machines? Plus, how do they maintain the Willis Tower Skydeck in Chicago?

How can steel repair itself? How do they create the world’s most powerful bikes? And how is wood transformed into paper?

Find out how they make military helicopters, how they design metro systems and how they engineer artificial reefs.

How do they make batteries from brine? How do they build a tropical island from trash? And how are fragrances blended to create different types of scents?

How do they look after sharks at the world’s biggest aquarium? How do they grow precious stones? And what does it take to build a luxury Bentley?

How do they avoid docking disasters when handling a thousand ships a day, how do they create a world of oil reserves from sticky forest mud, or bring old movies…

How have they designed a car that can call the emergency services? How is metal turned into magnets? And how are the biggest ships propelled?

Find out how they blast 10,000 tonnes of rock, how the earth is mapped from space, and how fresh flowers are provided all year round.

How do they program robots to build cars, how are wine bottles sealed, and how can sea water be transformed into fresh drinking water?

How do they use explosive rockets to catch crashing planes in mid-air and how do sunbathing techniques help scientists catch rays of sun? Plus, the shady secrets of sunglasses.

How do they make the magic suits that stop jet pilots blacking out when they are flying, and how can a robo-cop stop a stolen car without a high-speed chase?

How do they service the A380, the world’s largest plane? Plus, how do they generate 500,000 kWh from 1oz of uranium, and build and tune a piano to concert standard?

How do they turn an old warship into a playground for scuba divers, plan to stop San Francisco collapsing when the next earthquake strikes, and run a car on rocket…

How do they drill through a kilometre of solid rock to find the hidden riches in the desert, pick 20,000 oranges a minute for juice, and get glass to curve…