Neil Oliver visits a glassmith, who demonstrates how Romans produced glassware in Britain, and later discusses the impact glass windows might have had on Celts.
The terms proposition and opposition are defined in this clip from the documentary Up For Debate, with an introduction to the components of a debate speech.
Qatar and Bangladesh face off in the first round of the World School Debating Championships, as they debate the provision of government funding for faithbased initiatives.
Neil Oliver meets food historian Sally Grainger who demonstrates how the wealthy cooked and what they ate in Roman Britain.
Karl Stefanovic provides a basic description of the conditions that lead to coral bleaching on the Great Barrier Reef, and footage of coral blooming in spring shows the reef regenerating.
Neil Oliver visits an ancient copper mine at Great Orme, Wales, and demonstrates the conditions Bronze Age miners would have worked under.
Neil Oliver visits a replica Bronze Age house to learn how farmers prepared food and alcohol for winter.
Jacqui Katona and Dave Sweeney describe how Indigenous land rights and environmental activists blocked Jabiluka uranium mine.
The exploration of the Mariana Trench in the 1950s helped form geologists' theory of plate tectonics.
Neil Oliver visits Reichskrone, the Imperial Crown of the Holy Roman Empire, in Vienna and discusses how Cnut the Great's attendance of the Holy Roman Emperor's coronation marks Viking culture becoming European.
Neil Oliver examines the skeletons of the Viking victims of the St Brice's Day massacre at Oxford and describes how the bones reveal how they died.
The Cassini probe images revealed lakes on Saturn's moon, Titan, and scientists try to reproduce the detected elements to understand if life could exist in liquids other than water.
Neil Oliver visits Peel Island in Moreton Bay, where historian Thom Blake describes the colony where leprosy sufferers were quarantined from 1907 to 1959.
Neil Oliver goes for a swim at Brighton and meets two of the owners of the colourful bathing boxes.
How do bees know where to find the best flowers to make honey How do they talk to each other David Attenborough shows that it's all down to the amazing 'waggle dance'.
Tim Flannery meets Hugo Becerra, the navigator on Vital Alsar's crossing of the Pacific, from Ecuador to Australia, in rafts in 1973.
Brian Cox explores NASA's underwater training facility, where people are training to space walk on asteroids, and demonstrates how an asteroid might collide with Earth.
Brian Cox revisits one of his favourite books from his childhood, Stewart Cowley's Spacecraft 20002100 AD, and considers how different it is to reality.
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