Alan Davies and Marcus du Sautoy visit the UK's National Physical Laboratory, where Mark Oxborrow takes them through an experiment that demonstrates how prime numbers exist in nature, and the Riemann hypothesis.
In 1886 the Aboriginal Protection Board helps draft HalfCaste Act in Victoria, forcing Indigenous people off reserves and to assimilate with Europeans. As reserves close, Indigenous people are forcibly moved to Lake Tyres Mission.
A look at a few of the different minibeasts that live around a pond, including grasshoppers, ants and ladybugs. The narrator asks open ended questions that allow students time to answer for themselves.
Behind The News visits a mail centre to see how letters are sorted and delivered, learns what impact the internet is having on the postal service, and how online shopping is increasing package deliveries.
Historian Hamish MaxwellStewart gives Neil Oliver a tour of the Port Arthur convict settlement, revealing the detailed records of prisoners, and visiting the panopticon prison and solitary confinement cells.