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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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Catalyst: Advances in nuclear power technology

Imagine our world if nuclear power generation could be made safer. Discover how Chinese scientists have developed a new nuclear reactor that reduces the chances of the reactor overheating to the point of meltdown. To do this the pebble bed reactor uses advances in technology to replace the traditional water-cooled system. ...

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Four Corners: Increasing threat of megafires

Many scientists believe we are already experiencing megafires and that they will continue to increase in the future. In this clip you will hear from Australian scientists at the forefront of fire research. Discover what they have to say about the causes, projections, and consequences of an increased megafire threat.

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Planning and writing

How do you write? Do you get an idea and jump right in and start writing, or do you plan and think about your idea before you start? Everyone has their own writing style that works for them. Watch Lili Wilkinson talk about how she writes, and the importance of editing and being flexible with your original plan.

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Building a weather satellite

Designers and engineers improve upon existing products all the time. How important do you think it is to update and enhance something like a weather satellite? Can you think of some other objects that could be improved upon?

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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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Editing with Alice Pung

In addition to being a writer, Alice Pung has experience as an editor. What was the advice her own editor gave her when she started editing other people's work? Alice believes that good editors ask writers good questions. How else can editors help writers? Next time a friend or classmate asks you to give them feedback on ...

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Getting satellite design right

Is it a good idea to build a complex and expensive machine without carefully checking the design first? This animated clip describes some of the steps NASA took during the design review process for the development of a new satellite. Can you think of any other steps in design reviews?

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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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Interviews With 10 Australian Authors, Ch 8: Experience colonial Australia with Tom Keneally

Thomas Keneally likes to put himself in the shoes of figures from history, whether it's as a member of the SS or an Indigenous man treated unjustly, and ask ‘What would I have done?' In this interview he discusses why he was drawn to the Jimmie Governor story and the significance of the looming Federation of Australia.

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How to Build Stories, Ep 4: Exploring genre and setting of your story

Every genre has different rules. But once you know them, you can choose which rules you want to break. Find out how you can mix and match genres to create unique, interesting stories!

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For good measure

If you had to measure the rain level for the whole globe, how would you go about it so you could have as accurate a reading as possible? Rain gauges are great for measuring rain in small areas, but why might they not be as good for measuring large areas? Watch this video to see how the Global Precipitation Measurement (GPM) ...

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Kindred spirits: dancing our identity

Who are we and where do we belong? What and who decides our identity? People often ask these questions, and some may seek to discover the answers to them. In his dance piece entitled 'ID', choreographer Stephen Page explores what makes us similar, what makes us different and what gives us a sense of belonging. The clip ...

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Eugene von Guérard: 'North-east view from the northern top of Mount Kosciusko' 1863

In this landscape Eugene von Guérard blends topographical accuracy with the grandness of a mountain top view which he witnessed in 1862 as a member of a geographical survey led by scientist Georg von Neumayer. The artist has taken some liberties with the depiction of the boulders in the foreground to demonstrate the enormous ...

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How to Use Scratch: Changing the costume of your Sprite

Make your Sprite look its best by learning how to change its costume.

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Differences between writing a picture book and a novel

As a writer, what are some of the things you have to consider when writing a picture book as opposed to a novel? Think of the differences in format, layout and work processes. Why does Lili Wilkinson think it is harder, in some ways, to write a picture book? What makes it easier in other ways?

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David Malouf on short story writing

Some writers can write a short story in one sitting, whereas for others – like David Malouf – it can sometimes take a bit longer to figure out where a story is going. Watch as David explains that although writing is about an "enthusiastic rush", it is also about patience.  Have you ever written a story that you didn't know ...

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Aboriginal Cultures, Ch 1: Introduction to culture with Aunty Julie

What does culture mean to you? We all have a culture we identify with, whether it's linked to our nationality, ethnicity, religious beliefs or language. For Aboriginal and Torres Strait Islander peoples, culture plays an especially significant role. Why do you think this is? Think about what happened to Aboriginal Country, ...

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Can you hear the famous rhythm?

Beethoven was a composer who lived about 200 years ago. Have a listen as the orchestra plays one of his most well known pieces of music. Do you recognise it? Can you hear Beethoven's famous rhythm being repeated in the music?

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Interviews With 10 Australian Authors, Ch 2: Draw with Bronwyn Bancroft

How do you draw a giant rainstorm? Bronwyn Bancroft loves Australian nature. She knows how to paint the weather, the land, and the animals. In this interview she speaks about what it's like to live in a country town when a storm hits.