The Best Episodes of Horizon Season 34

This Horizon documentary is about how and why, a sheep named Dolly, became the first cloned copy of an adult mammal.

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Horizon reports on the resurgence in research on psychedelic drugs in the 1990's.

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In this documentary, Horizon investigates obesity in Britain, following a woman, Heather Osborne, who weighs 322 pounds. We watch her progress through a stomach stapling operation and explore reports on a so-called fat free fat and two new drugs which have been marketed as the ultimate cure for obesity.

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Horizon follows the investigations into the origins of a 16th century shipwreck discovered off of the coast of the Channel Islands.

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This episode of Horizon presents a profile of the inventor Sir Frank Whittle and his idea for the first jet engine which changed the nature of air travel.

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In this episode, Horizon reports on the last lab samples of smallpox destined to be destroyed. But do we still have much to learn from this virus?

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In this episode, Horizon investigates an amazing new sign language developed solely by deaf children and explores if we copy language from what surrounds us.

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Horizon reports on a radical new theory by Professor Polly Matzinger about the human body's immune system.

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Horizon investigates the real impact that oil pollution has on our environment during a 12 month study.

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Horizon reports on the technical and logistical struggles of teams trying for the first time to circumnavigate the earth by balloon.

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Horizon investigates the theory that a comet impact in the Gulf of Mexico was responsible for the mass extinction of the dinosaurs.

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Horizon reports on how mainstream science is now looking at whether the brain can affect the immune system.

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In this episode, Horizon presents new findings about the dates for the arrival of people in Australia and the invention of art.

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Horizon presents a documentary about scientists who now believe that viruses that can kill bacteria, known as bacteriophage, might win the fight against super-germs.

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Looks at Ian Waterman, who at 19 caught a virus that destroyed half of his nervous system and who, in spite of medical assertions that he would never walk, feed or move again, managed by sheer will-power to get back some mobility. Examines the question of how far the brain can over-ride disease or physical problems.

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