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? Jakso 17 Kausi 15 Vuosi 2018

How do they turn root vegetables into sweet sugar? How do they make feather dusters? And, how do they make billions of balloons to keep parties popping? Jakso 18 Kausi 15 Vuosi 2018

How do they turn trees into pencils? How do they make liquorice? And, how do they use traditional techniques to weave the world's most fashionable lace? Jakso 19 Kausi 15 Vuosi 2018

Find out how mortars, pestles bowling lane conditioners, crematories and wood playsets are made. Jakso 6 Kausi 24 Vuosi 2016

Find out how wooden matches, tillage machines, telescopic gangways, and mabe pearls are made. Jakso 7 Kausi 24 Vuosi 2016

Find out how mosquito coils, solar-assist tricycles, palm oil, and fiberglass chopper guns are made. Jakso 8 Kausi 24 Vuosi 2016

Find out how wood toys, retro toasters, laboratory furnaces, and aerogels are made. Jakso 9 Kausi 24 Vuosi 2016

How do they turn rosebuds into Turkish Delight? How do they hammer out a silver spoon? And, how do they make sunscreen to block out harmful UV light? Jakso 8 Kausi 11 Vuosi 2013

How do they create the world's finest canvases? How do they cook up foul-smelling stinky tofu? And, how do they get fifty drinks out of a single bottle of beer? Jakso 9 Kausi 11 Vuosi 2013

How do they look after bees to make millions of jars of honey? How do they build a trike to carry the whole family, and how to stop a bullet with a sheet of ceramic? Jakso 10 Kausi 11 Vuosi 2013

How do they mine the essential mineral in glass cookware? How do they keep cash safe inside an ATM? How do they build a hyper-car out of cloth? Jakso 11 Kausi 11 Vuosi 2013

How do they build a port ready to receive container ships? How do they make 28 million plastic bags a day? And, how do they blow the glass to make baubles? Jakso 13 Kausi 11 Vuosi 2013

Experts investigate to see if the fire on Apollo 1 that killed three astronauts was a cover-up. Was it a tragic accident or part of the moon landing conspiracy? Jakso 1 Kausi 1 Vuosi 2019

Experts investigate if there was a conspiracy to fake the moon landing. Does a secret report suggest the Nazis were involved in the Apollo space programme? Jakso 2 Kausi 1 Vuosi 2019

Confidential CIA files reveal a secret war for space between America and the Soviets. And, experts investigate American espionage during the Apollo programme. Jakso 3 Kausi 1 Vuosi 2019

Kevin and Grant outfit cars with armour and weapons and face off in a demolition derby. Later, they build a lie detector and a chainsaw-powered chairlift. Jakso 4 Kausi 1 Vuosi 2015

Can Kevin and Grant build an amphibious motorcycle that drives on the water? In an ultra-scientific mini-golf competition, who can make the most holes-in-one? Jakso 5 Kausi 1 Vuosi 2015

How do they feed France's appetite for snails, turn slabs of steel into shiny cutlery, and craft a kayak you can paddle with your feet? Jakso 11 Kausi 13 Vuosi 2015

How do they build emergency bridges that can take the weight of a tank, make a marker pen that never fades, and design a 200-mph superbike? Jakso 12 Kausi 13 Vuosi 2015

How do they blow the world's finest crystal, heat the deepest swimming pool, and fill a million bottles a day of the world's favourite ketchup? Jakso 13 Kausi 13 Vuosi 2015

How do they turn Sheffield steel into a carpenter's handsaw, make a microphone that can pick up a whisper, and safely steer through a frozen river? Jakso 15 Kausi 13 Vuosi 2015

How do they mine one of the rarest gemstones in the world, craft the classic cowboy boot, and build a road sweeper that can pick up seven tonnes of trash? Jakso 17 Kausi 13 Vuosi 2015

How do they make the world's softest duvets, drill for oil thousands of metres below ground, and put the stretch in rubber bands? Jakso 18 Kausi 13 Vuosi 2015

Rob heads to California to investigate a network for major fault lines that could set off a mega-quake. Plus, he explores a mysterious sinkhole. Jakso 6 Kausi 1 Vuosi 2017

Rob Nelson investigates a cluster of ancient ruins in New England that suggest Europeans arrived in the Americas almost 1,000 years before Columbus. Jakso 7 Kausi 1 Vuosi 2017

The discovery of extra-terrestrial life faces a near impossible challenge. Experts explore the problems with proving or disproving the existence of aliens. Jakso 9 Kausi 8 Vuosi 2020

If an asteroid collides with the earth it could end life on our planet as we know it. Experts reveal just how close we are to an apocalypse. Jakso 11 Kausi 8 Vuosi 2020

How do they forge super steel to make a car lighter, greener and safer? And, how do they shear Australia's eighty million sheep every Spring? Jakso 15 Kausi 11 Vuosi 2013

How do they keep you comfortable, entertained and safe with the latest aircraft seats? And, how do they design bras with aerospace technology to give you that extra lift? Jakso 16 Kausi 11 Vuosi 2013

How is plasterboard made from power station smoke? How do they cast the world's top awards? How do they build a plane that can take off and land almost anywhere? Jakso 17 Kausi 11 Vuosi 2013

How do they make car windows to keep out wind and rain, stones and thieves, and even noise and harmful UV rays? And, how do they put the gloss on lipstick? Jakso 18 Kausi 11 Vuosi 2013

Workers turn millions of tons of cedar trees into perfect planks of wood siding. Plus, how are world-famous Spanish tiles handcrafted? Jakso 1 Kausi 12 Vuosi 2014

How is the most advanced heavy-lift airplane in the world built? What is the secret behind making sure bananas are ripe when they hit the shelves? Jakso 2 Kausi 12 Vuosi 2014

In 1969, millions watched Neil Armstrong step onto the moon. But behind these iconic images is an untold story, and the most extensive search for unseen footage ever undertaken. Jakso Kausi Vuosi 2019

Neutron stars are violent phenomena that defy the laws of physics. New discoveries reveal they have the power to destroy planets and even other stars. Jakso 1 Kausi 7 Vuosi 2018

Supernovas are the violent death of giant stars. New discoveries reveal how these events create the elements that are essential to all life in the universe. Jakso 2 Kausi 7 Vuosi 2018

The time travelling machines of Hollywood movies offer infinite opportunities, but could time travel ever really be more than science fiction? Jakso 6 Kausi 8 Vuosi 2020

Some of the brightest minds and theorists on the planet explore the limits of human knowledge and explain the science behind the rules of the universe. Jakso 7 Kausi 8 Vuosi 2020

Earth is spinning on a tilted axis as it orbits around the Sun. Experts and scientists explain how the planet journeys through the Milky Way. Jakso 8 Kausi 8 Vuosi 2020

New discoveries at a strange prehistoric site reveal the dark secrets and rituals of the mysterious people who built the world's largest stone circle. Jakso 14 Kausi 3 Vuosi 2018