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• TLF-IDM015732

Imagine if we could control the weather. Find out how scientists are already at work making clouds rain when and where they want. It's called cloud seeding. Watch this clip to understand how cloud seeding works, and where it is being used in Australia.

• TLF-IDM015397

Imagine what would happen if a deadly fish disease found its way into Australia's biggest river system. Watch this clip to learn more about a disease threatening the ecology of the Murray-Darling River. Scientist, Professor Richard Whittington, explains that the disease could be the final straw for an endangered Australian ...

• TLF-IDM018361

Artificial lighting methods have changed with the invention of new lighting technologies designed to be more energy efficient and to reduce the use of resources. Since electricity has been used as an energy source, incandescent and fluorescent globes and, more recently, light emitting diodes (LEDs) have been used in our ...

• TLF-IDM018034

Ever since Mark Twain's 'Adventures of Huckleberry Finn' was published in 1884, books for teenagers have come under close scrutiny by adults concerned about their appropriateness for younger audiences. Why are some adults so worried about what teenagers read? Are they right to be concerned? Explore the tricky topic of censorship ...

• TLF-IDM017806

Questions of morality are frequently probed by writers. F Scott Fitzgerald explores the human propensity for deceit in one of the most intriguing characters in 'The great Gatsby', Jordan Baker. This clip from 'Books and arts daily' on Radio National is one in a series of eight.

• TLF-IDM015730

Imagine you were walking down the street and found a wallet full of money. What would you do with it? Ethics is the branch of philosophy that explores the concepts of what is right and wrong. In this episode of Q&A, a group of panellists respond to the axing of ethics classes in New South Wales schools. As you watch, explore ...

• TLF-IDM015808

Explore with the Surfing Scientist team what happens when metals are heated and cooled. Find out what happens to a metal ring when it is immersed in extremely cold liquid nitrogen. What do hinges on the Sydney Harbour Bridge have to do with all this? Find out.

• TLF-IDM015382

Can you imagine seeing porpoises leaping out of the water in a river near you? Sounds unlikely, doesn't it, but that's what people living along the banks of the Yangtze River in China often used to see. These Yangtze finless porpoises are now rapidly disappearing. Find out why and what Chinese scientist Professor Wang Ding ...

• TLF-IDM019128

You may have heard about the cannabis plant and its use as the drug marijuana. But did you know it has two main varieties, one of them commonly called hemp? See how hemp differs from its 'cousin'. Find out more about the characteristics of hemp that make it a 'green' crop with plenty of potential.

• TLF-IDM018573

When Ruth Park wrote 'The Harp in the South', little did she know the storm of controversy it would cause. But why did it cause such outrage? And how did it go on to become one of Australia's best-loved novels? To find out, we need to go back in time � or just watch this clip!