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Series 2: Episode 8
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Liz launches a huge experiment into the nation's sense of smell.
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Series 2: Episode 7
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Jem straps a race horse to his car to explain what horsepower is.
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Series 2: Episode 6
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Dallas hits the streets to discover what makes people happy, while Liz travels to Norway.
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Can You Train Your Brain?
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The team give the results of the world's biggest-ever brain training experiment.
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Series 2: Episode 5
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The team look at the science behind the volcanic ash crisis.
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Series 2: Episode 4
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Jem hits the furnace to make steel and discovers how it built the modern world.
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Series 2: Episode 3
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Dallas takes on the latest lie detection technology and Dr Yan gets on the 3D bandwagon.
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Series 2: Episode 2
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Engineer Jem becomes a crash test dummy to discover how much g-force his body can take.
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Series 2: Episode 1
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Jem tries to smash a land speed record with a fire extinguisher, a go kart and a spanner.
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03/12/2009
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The gang attempts to power a house for an entire day using only human pedal power.
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The Human Power Station
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The gang attempts to power a house for an entire day using only human pedal power.
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Series 1: Episode 10
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Jem Stansfield decides to build a rocket powered by toffee.
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Series 1: Episode 9
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Jem Stansfield puts spider silk to the test and Liz Bonnin joins the RAF's flight school.
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Series 1: Episode 8
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Jem Stansfield builds a microwave death ray and Dr Yan Wong explains how gyroscopes work.
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Series 1: Episode 7
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Jem Stansfield tests new braking systems and Liz Bonnin looks into the origins of speech.
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Series 1: Episode 6
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Jem Stansfield takes to the air with the Royal Navy to explain how helicopters work.
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Series 1: Episode 5
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Jem Stansfield tries to defeat the US Navy's latest weapon with foam and a crash helmet.
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Series 1: Episode 4
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Liz Bonnin investigates recent research into the magnetic qualities of cows.
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Series 1: Episode 3
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Dallas Campbell traces the incredible journey of 30,000 indestructible plastic ducks.
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Series 1: Episode 2
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Jem Stansfield puts his life in his hands by tying himself to a water jet pack.
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Series 1: Episode 1
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Jem Stansfield builds a vortex cannon to blow over a house of brick.
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