Environmental scientist Jamie Shulmeister and Tim Flannery taste test the sand on Fraser Island, where grains of sand are different sizes according to the nutrients they contain.
Learn how to describe all the differences between city and country life with the kids of Valencia as your guide
Jacques Hébert becomes a leading voice in calls for the dechristianisation in France.
Wile the Incas held their emperor as all powerful, there were other important tiers in society, including the family.
Three experienced English speakers reveal they change accents and phrases to be understood in different situations.
Colourised archival footage and a French officer's diary reveal the muddy conditions of Verdun's wasteland.
Jim AlKhalili shows how difficult it is to calculate simple sums with the Roman numeral system.
Neil Oliver meets archaeologist Lindsey Simpson, who explains how Vikings in Ireland can be identified by their grave sites and how their bones have worn.
Neil Oliver demonstrates the use of ballistae, the bolt throwers the Celts faced as the Romans sought to conquer Britain in the first century BC.
A quick exploration of the huge variety of plants in the world, from a pine tree that is thousands of years old, to a bamboo that grows 30 metres high in just 90 days.
The class learns about trust, confidentiality and secrets. Program facilitator Bernadette challenges students to consider the ethical boundaries of good secrets versus bad secrets, and the responsibility we all have to protect others from harm.
After a successful revolutionary war, a newly independent America embarked on whole new political system for its people.
The Incas established a huge and well connected empire that was supported by 'roadworks' call the Inca Trail
Sam Willis dines in traditional Uzbek food and notes the similarities to Chinese, Italian and Indian cuisines.
Filmed in ultra slow-motion, 48 collisions are recorded between dancers, boxers, martial artists, gymnasts, football players, wrestlers and street culture enthusiasts.
A French doctor's diary describes the psychological impact of bombing on soldiers and archival footage reveals PTSD suffered by casualties.
Researchers have found the mere act of thinking can create new connections in the brain and neuroplasticity is intrinsic.
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