Karl Stefanovic explains how the Great Barrier Reef is a product of the Ice Age coming to an end and raising water levels 10,000 years ago.
Albert Wiggal shows Brendan Moar the kind of rafts the Bardi people would have used to travel and fish around One Arm Point in the Kimberley region.
Geomorphologist Grant Pearce takes Emma Johnston scuba diving in Piccaninnie Ponds and Kilsbys Sinkhole on South Australia's Limestone Coast.
Tim Flannery meets Shark Bay Marine Park's Dave Holley to learn how some of the earliest forms on life, stromatolites, have managed to survive in Shark Bay for billions of years.
Linguini realises how useful Remy is and decides to keep the rat in his kitchen.
Chloe Watts meets former builder John Beech, who now develops video games that allow players to create their own levels and share them with a community.
Coastal geomorphologist Rob Dr Rip Brander shows Brendan Moar what happens to his heart rate when caught in a rip current.
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.
Arthur Calwell orders deportation of Asian wartime refugees but Indonesian O'Keefe family resists.
A true icon of Australian suburbia, but one that should rightly be called the Toyne's Hoist! Committed to his invention throughout war and personal tragedy, Gilbert Toyne patented the enduing design, manufactured and marketed it decades before Lawrence Hill's hoist arrived. Toyne's legacy was to invent one of the most practical, labour-saving devices to grace Australian backyards in 20th century - his galvanised-metal, rotary clothes hoist.
Graeme Clark's bionic ear (or cochlear implant) is a neural prosthesis designed to produce hearing sensations by electrically stimulating nerves inside the inner ear of profoundly deaf patients. It consists of a receiver-stimulator that is surgically placed under the patient's skin behind the ear, and an external sound processor that sits behind the ear, similar to a hearing aid.
The toilet really came into its own in the 20th century, making it the most important fixture in our homes. Now, the dual flush toilet saves up to 67 percent water per flush. It's the handy work of Bruce Thompson and colleague Steve Cummings, who invented the system, with the help of a government grant, while working for bathroom product company Caroma.
William Henry Bragg and his son, William Lawrence Bragg, were the pioneering scientists who invented X-ray crystallography. It was William Lawrence who developed Bragg's Law, which - when combined with his father's newly-invented spectrometer - enabled scientists for the first time to observe the atomic structure of our physical world. The Nobel Prize-winning father and son team radically changed the world, with their invention paving the way for new discoveries in chemistry, space exploration a
From the harsh outback to warzone frontlines and Olympic champion podiums, the Akubra hat has adorned Australian heads for over a century both here at home and around the world. The Akubra success lies in the efforts of hat maker Benjamin Dunkerley and his ingenious fur dressing invention. Dunkerley's partnership with Stephen Keir built the Akubra empire that continues today.
Filmmaker Damon Garneau travels to the US to discover the marketing ploys used to disguise sugar in so-called healthy drinks.
Dr Giles Yeo speaks with an exam stress expert and learns about some coping and study strategies which may reduce anxiety and stress.
The talent spend their first morning on the cotton fields of Bangladesh. They dress as the locals do and spend the morning picking cotton for Bangladesh's garment industry.
How much does the worker, Yasmin, earn a day? How does this compare to wages in Australia? How does it compare to the cost of a t-shirt in Australia? What are the conditions like for these workers?
This experiment shows how your physical posture can affect your thinking. Watch the video then try a power pose for yourself, did it make you feel different?