Dr Alice Roberts takes Les Love though an experiment where they track how long it takes sweet corn to be digested and what the results mean for bowel health.
Sam Willis sees how silk cocoons are processed into fabric in a modern Chinese factory, and discusses the textile's importance in trade.
Scientists explain how Neptune captured its largest moon, Triton, and discuss the satellite's geyser plumes.
The ancestors of the three Seabrook brothers killed at Passchendaele discuss the enduring impact of their deaths on the Australian family.
A dramatisation of James Porter and his gang's escape from Macquarie Harbour prison in 1834.
Jimmy Doherty visits a chocolate factory to learn how cacao beans are transformed into chocolate and what the difference is between white and dark chocolate.
Archival footage reveals the human zoos of the 19th century, where indigenous people from around the world were transported to Europe and put on display.
This short BBC clip offers an excellent backgrounder to humanity's relationship with the moon.
James Watson and Francis Crick discover the structure of DNA takes the form of a double helix.
Physicists discuss the theories of dark matter developed by Fritz Zwicky and Vera Rubin to explain gravitational fields.
Tony Robinson retraces Robert O'Hara Burke and William John Wills' 1860-61 expedition to explore inland Australia.
A reading of William Wordsworth's Composed Upon Westminster Bridge with critics discussing his vision of London and landscape.
Carers wash and dress residents at UK retirement home, helped by teenage volunteers, who gain understanding of elderly.
Using cutting edge imagery and graphics, this clip examines Jupiter's very active and dangerous moon, Io. Suitable for years 5 &
The BBC's Dr Michael Mosley swallows a tiny camera for a tour inside the human digestive system. This clip shows exactly what go
David Williamson discusses how he re-evaluated his idea of Anzacs to write this script.
Whales sharks come to the Galapagos in large numbers at the same time every year. Why they do this is still a mystery. It is not to feed but it could be that they come to the islands to give birth. Yet no whale pups have been seen.
It might sound bizarre, but one of the Galapagos islands is so remote that it has allowed a species of dandelion to evolve independent of other competing species. These dandelions grow so tall that they resemble huge rainforest trees.