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Foreign Correspondent: Dams and dolphins on the Mekong?

If the Lao Government's plans are realised, nine hydropower dams will be built across the Mekong River in Laos, and more across its tributaries. The government wants the country to become the 'battery of Asia'. With this dream comes a host of issues. Listen to reasons why the World Wildlife Fund (WWF) suggests hydro-dam ...

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Pocket Compass, Ep 4: History of Indigenous rights in Australia

You may have heard of the 1967 referendum that granted Aboriginal and Torres Strait Islanders some rights in Australia, but how did Indigenous rights evolve from there? Many, like the Black Power activists, believed the referendum didn't go far enough, especially in relation to land rights, and their causes gained prominence ...

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How do robots work?

Ever wondered how robots work? Watch as students and Robogals members Claire and Stefan introduce you to one of their robots. What does Claire say about robot languages? And what does Stefan say about how the robot knows what's in front of it?

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BTN: Tsunamis

Discover what powerful force triggers a tsunami. In this clip you will see the damage caused by tsunami, and find out why it occurred. Learn about what is happening on the ocean floor and the connection between tsunamis, earthquakes, volcanoes and tectonic plates. See how a warning centre is working to keep people safe ...

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Thinking about the design process

Watch as UNSW student and Blusat member William Frohlich talks about the design process. What are some of the important things to consider before you start to make a project? Why does William say it's important to be flexible with your designs? Design your own obstacle course for your family using objects from around your ...

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Catalyst: What are modular farms?

Modular farms are flexible and self-contained systems that allow you to grow herbs and vegetables without the need for soil or sunlight. What are some advantages of modular farms? What may be some of the disadvantages?

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Catalyst: Growing avocados

Demand for certain kinds of food changes with time as people's tastes change. Avocados were not always popular, but in recent years their popularity has increased so much that supply cannot keep up with demand. Learn how stem cell scientists at the University of Queensland are leading the way in research that could cut ...

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BTN: Calculating area using locust plagues

How many locusts in a plague? Find out just how big the threat of locusts can be and how farmers try to prevent the plagues from getting out of control. This clip provides context for a combination of area, area units and rate problems.

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ABC News: Planning for growth in Sydney

Sydney is already Australia's largest city but the outlook is for an increasing population and continuous growth. Looking toward the planning horizon of 2031, a recent government plan has pleased some sections of the community, but it is not without its critics. In this clip from March 2013, see how the state government ...

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Evolving English: Where do new words come from?

What do you think the term Spanglish might mean? Or Chinglish? Or Franglais? Our language is constantly changing and one way in which it does so is by 'borrowing' words from other languages. In this clip, learn about our evolving language.

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Emma Boyd: 'The quail shooter' 1884

In this work Emma Boyd depicts the landscape near her home, ‘The Grange', in Victoria. See how the landscape dominates the single human figure? What do you think this suggests? What is the artists trying to say by creating this sense of scale?

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Welcome to Bonegilla Migrant Camp

Following World War II, the Australian government was eager to increase the country’s population. The war reminded Australians that their small population would not withstand an enemy invasion. Further, a larger workforce was needed to develop the postwar economy. European people, many displaced by the war and the spread ...

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Catalyst: Tsunami prevention in the Pacific

By investigating sediments and debris left by devastating tsunamis throughout history, Japanese scientists are making discoveries that change the way we understand disaster prevention in the Pacific. Watch as research teams examine rocks and mud layers; create digital simulations of past tsunamis; and investigate the seabed ...

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The House In Session, Ep 4: The rules that guide the House of Representatives

Annabel Crabb explains some of the rules that guide the House of Representatives – also known as the Lower House – where Members of Parliament argue about and vote on new laws for Australia. Why would a politician hold paper over his or her head when speaking in the Lower House? What happens when all the clocks in the building ...

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The House In Session, Ep 5: Writing amendments in the Senate

The Senate’s job is to "check the work" of the House of Representatives and make sure the laws they’ve made are fair. But what happens when the Senate and the House of Representatives disagree? Annabel Crabb explains the process of writing and approving amendments; the rituals of official business; and how the Lamson tube works.

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Sciencey: Five things you need to know about climate change

Find out how carbon dioxide makes the Earth warmer, how oceans store heat and the way we can see climate history in ice. What are the consequences of changes in the global climate? What can we do as individuals and communities to stop these negative changes?

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Comparing fuel consumption

Is it more fuel efficient to drive or fly between two places? Watch this clip and learn how to calculate the answer. What are the various factors that need to be taken into account? This video was made using the American measurement of gallons per hour, American firgures for the average number of passengers in a car and ...

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MathXplosion, Ep 1: Magic 9s

Follow these simple calculations to illustrate the special properties of the number 9. Pick your favourite number between 1 and 9 and multiply that number by 3. Add 3 to your answer. Multiply the result by 3. Treat your two-digit answer as two separate numbers and add them together. No matter what number you pick to start ...

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BTN: New Zealand's earthquakes

Damaged buildings, flooded roads, and crashed cars! No, it's not a bad dream; it's actually the aftermath of an earthquake in Christchurch, New Zealand, in 2011. Find out about what causes earthquakes, the damage they cause, and why Christchurch was rocked by two quakes within six months. This clip includes footage of earthquake ...

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BTN: What is debating?

Well, come along to round six of the 2015 National Schools Debating Championships to find out! What are the rules of debating? And what are the speakers judged on? As BTN reporter Carl Smith explains, in order to make a good argument, you need to try to prove that your ideas are right and your opposition's ideas are wrong. ...