Australia's first parliament introduces dictation test to exclude nonwhite immigration to Australia.
Neil Finn reveals how playing at house parties established the way Crowded House wanted to connect with their audience.
This clip looks at how we see colour using the example of a rainbow.
Scientists explain the difference between regular and irregular moons, the effect of gravity on a moon's orbit, secular acceleration and Phobos' death spiral towards Mars.
This clip explains the difference between regular moons and irregular moons in our solar system and how they move in a gravitati
Dutch are experts in controlling surging seas and rivers, and are developing cutting-edge technologies to deal with climate chan
Tony Robinson goes underground in Wales to see how hurriers, the children who worked in coal mines, fared during the Industrial Revolution.
Germany surrendered unconditionally to Field Marshall Foch in a rail carriage in Compiegne at 5am on November 11, 1918. But they agree
Arnold's SelfDependence is linked to Dover Beach, or the poet's thoughts on growing up to his reflection on change.
Residents read Wordsworth's Composed Upon Westminster Bridge and critics discuss his vision of London and landscape.
A reading of William Wordsworth's Composed Upon Westminster Bridge with critics discussing his vision of London and landscape.
Physicist Max Tegmark uses a waterfall analogy to explain how black holes work, how the event horizon is the point of no return, and what it would be like to go through one.
Physicist Douglas Leonard explains the relationship between black holes and the sun, and reveals how the Hubble Telescope helped discover a black hole where sun had gone supernova.
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.
David Attenborough introduced us to some amazing flowering plants and the complex relationship they have with pollinators.
Plants need the right balance of nutrients to survive - and some have become carnivorous to ensure they get what they need.
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Michael Moore meets National Rifle Association president Charlton Heston to discuss America's gun culture and the shooting death of a sixyearold girl by one of her classmates.