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Catalyst: Probability and the birthday paradox

Even when a maths problem seems simple – for example, the chance of two people sharing a birthday – the maths can run counter to our human intuition. Mathematician Lily Serna poses a maths problem to the Clovelly Bowling Club: how many people do you need to gather to get a 50 per cent chance of any two people in that group ...

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Indigenous Australian Activism in 1974

For generations, Aboriginal and Torres Strait Islander peoples have sought to regain custodianship of the land taken from them since the arrival of Europeans in Australia. In the early 1970s, protests and demonstrations signified the beginning of the Land Rights movement. In this clip, Indigenous Australian activist Sam ...

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Calls for recognition of Indigenous Australians

Discover why many Australians believe the time has come to change the Australian Constitution to recognise Aboriginal and Torres Strait Islander histories. This program from January 2012 examines the debate about how this change might be achieved. It looks at the growing call for our constitution to recognise and advance ...

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Four Corners: Surf culture hits Australia in the 1960s

How did surf culture change Australian popular culture? Rock music and the concept of the 'teenager' had arrived in Australia in the 1950s but in the 1960s the surfboard gave rise to a new youth subculture. This clip from 1964 explores conflict in the water and cultural changes that came with the rise of the 'surfie'.

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Four Corners: African American salary disparity, 1968

How does it feel to be paid less than another person doing the same job, because of the colour of your skin? During the 1960s, this was the plight of many professional African Americans who were not paid equally for doing the same work as their white counterparts. Listen to David Dinkins, a New York lawyer, share his experiences.

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Four Corners: Harlem co-op supermarket, 1968

What would you do if you found out that you were being sold inferior groceries, at higher prices, just because of the colour of your skin? Harlem resident Cora Walker explains that this was the situation faced by members of Harlem's African American community in the late 1960s. See how the residents joined together to address ...

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Four Corners: Margaret Valadian interviewed in 1967

What is the role of interviewers who explore social issues? In this 1967 clip from Four Corners, Margaret Valadian is recognised as the first Aboriginal Australian graduate of the University of Queensland. Here, in the middle of the panel discussion she is questioned by Robert Moore about her personal and professional life.

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Foreign Correspondent: Cancun-style tourism

Tourism comes in many forms. Apart from being a holiday destination, Australia is also attracting business people and students. Find out how forecasts of future tourism numbers are made, particularly those from Asia. This clip also describes factors that threaten our tourism industry.

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Reflections on ending the White Australia policy

Why was the abolition of the White Australia policy so important? Steps taken by the Whitlam Labor government in 1973 signalled the end of the legislation behind the policy. Find out which event first led to the new multiracial policy being put into practice. In this clip, you will hear from former prime ministers and ministers ...

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Batavia shipwreck leads to mass murder

In 1629, the Dutch merchant ship Batavia was wrecked off the Western Australian coast near present-day Geraldton. What followed was a tale of mutiny and mass murder on the surrounding islands. Hear from two members of the 1963 expedition that first uncovered the ship's remains, as they visit one of the islands in 2013.

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BTN: Nuclear tests at Maralinga

Can you imagine nuclear bombs being exploded in Australia, over your home? Between 1953 and 1963, the Australian Government led by Robert Menzies allowed Britain to test nuclear bombs in the open air at sites in Australia. These sites included Maralinga in South Australia. It was the land of the Maralinga Tjarutja people ...

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Four Corners: Sukarno's rise to power, 1966

What happens to the fate of individual countries following a world war? After the end of World War II, the Dutch abandon Indonesia, their former colony. This leaves room for a home-grown hero named Sukarno to return from exile and take the reins. The clip shows the swearing in of Sukarno and the flying of the flag of the ...

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For the Juniors: Drawing a floor plan

How do we know what a house will look like before it is built? Discover how house plans work by looking at the design of a house that Hugo's family is going to build. See how a floor plan shows the room layout. See drawings of what the house will look like from different views.

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Sacred fig tree lone survivor video

Warrgamay elder Bill Morganson visits a sacred meeting place for his people - the last giant fig tree in the Herbert River Valley, north Queensland. He explains how trees like this were used by Warrgamay people and why this surviving fig has such value.

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ABC Open: Anzac Day and the unseen costs of war

Discover the unseen costs of war. Many people experience fear, anxiety, bereavement, shock and other forms of psychological trauma that do not end when they return home. Watch this clip as residents of Violet Town in Victoria reflect on the personal cost of war.

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Roman Times: Were ancient Romans slaves to fashion?

What clothing would you have worn to look cool in ancient Rome? Like people today, many ancient Romans felt that they had to follow the latest fashions. Find out why for many men tunics replaced togas, and that in some periods men wore beards and in other times they didn't. See what hairstyle options were available for ...

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This Day Tonight: Germaine Greer and women's liberation, 1972

Discover what it was like for women who spoke up for equal rights in 1970. Germaine Greer's 'The Female Eunuch' was first published in that year. It would inspire many to challenge traditional views of female and male roles. Listen as, in 1970, Greer expresses her ideas and several Australian women and girls say what they ...

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Catalyst: Take the Phi Golden challenge

The golden ratio, Phi: fact or fallacy? What about the Fibonacci sequence? We are told this ratio and its cousin Fibonacci occur everywhere in nature. Let's see which of these claims stacks up when put to the test.

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Pocket Compass, Ep 2: Women's liberation movement

The 1960s was a time of various social and political movements, including the women's liberation movement. The feminists of this movement were fighting for equality and liberation from predefined roles in society. Learn about some of the changes they were fighting for and how feminism has changed over the years.

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Odd and even numbers

Do you know what makes an odd number and what makes an even number? There are a few ways to test whether a number is odd or even. Find out about one method in this video, then see if you can discover at least one other method.