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.
After a full day working like Victorians, modern families experience the pain and uncertainty of working like in 1886 London.
David Attenborough describes the conditions that formed the Gobi Desert and some of the characteristics of the environment.
Harrison reveals how alchemists tried to turn lead into gold, and holds a competition between two children to see who can pan the most fool's gold.
Student writes an essay on courage and bullying in an effort to complete year 10.
Marcus du Sautoy shows how the Ancient Egyptian number system worked, and the problems with it, and reveals that binary is documented in the 1550 BC Rhind Mathematical Papyrus.
A team of researchers investigate the relationship between Malaysian giant ants and the rainforest trees they live in.
An description of the New Year festival celebrated by the Dai people who live in Sichuan Banang in southwest China.
See a Simulcam in action as virtual and 3D cameras work in unison with CGI technology to help James Cameron see what will appear on the big screen.
Marcus du Sautoy takes Alan Davies to Paris to see the Grand Arche, a representation of a fourdimensional cube, or tesseract.
James Watson and Francis Crick discover the structure of DNA takes the form of a double helix.
Shaun Micallef joins two Mormon missionaries in Fiji as they work in the community, going on a home visit and joining a work party.
Sam Best and his family needed to come up with daring new approaches to help Sam progress socially as he grew older.
David Williamson discusses how he re-evaluated his idea of Anzacs to write this script.
A reading of William Wordsworth's Composed Upon Westminster Bridge with critics discussing his vision of London and landscape.
Residents read Wordsworth's Composed Upon Westminster Bridge and critics discuss his vision of London and landscape.