Returning to Australia, Sam does something he could never have done before - he delivers a perfect speech in front of his class on his African journey.
Contains images of drugs. A look inside the dirty and grimy labs where ice is often made.
Shaun Micallef meets students at Brigham Young University and discusses aspects of they Mormon lifestyle and faith.
Australia is the world's second largest user of ice and half is smuggled in from China.
Coastal engineer Jose Borrero describes how the phenomenon of drawdown, where the sea retreats from the shore, would have warned people that the impending arrival of the 2004 Indian Ocean tsunami.
*Aboriginal and Torres Strait Islander viewers are advised that the following program contains images and voices of deceased per
This clip is a good discussion starter and argues that developed nations may be less impacted by global warming than other natio
This clip highlights a few recent weather disasters that have been blamed in part on global warming. What are some man made products adding to green house gases? How can these be reduced?
Far out in the Pacific, the islands of Palau hold secrets that could upset our understanding of human evolution. Mysterious bone
This short BBC clip offers an excellent backgrounder to humanity's relationship with the moon.
The origin and then modern significance of Charles Darwin's theory of natural selection is discussed.
Researchers have found the mere act of thinking can create new connections in the brain and neuroplasticity is intrinsic.
In an experiment, the host's senses are manipulated to make his brain think he is having an out-of-body experience.
Scans of brain activity reveal decisions can be predicted even before a subject is conscious of them.
A reading of William Wordsworth's Composed Upon Westminster Bridge with critics discussing his vision of London and landscape.
Charles Perkins takes action to prevent five-year-old Nancy Prasad's deportation to Fiji in 1965.
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.
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