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Radio National: Stand and deliver: public speaking and democracy

Have you ever heard the words 'Friends, Romans, countrymen, lend me your ears'? They come from the great orator Mark Antony talking about the death of Caesar in Shakespeare's play 'Julius Caesar'. Listen to this audio interview with classics scholar Dr Kathryn Welch to find out what we can learn from the first public speakers, ...

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Water-powered engine theories need hosing down

This ABC article by Dr Karl addresses the question: will we one day be able to power cars with water? The chemical reactions involved in the formation and decomposition of water are described. Energy transformations are explained. A very useful resource to get students thinking.

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Water found on the moon

Scientists have confirmed the presence of water on the moon. Rather than occurring in rivers or lakes, water is found sparsely mixed amongst rocks. It's suggested the water came from comets, or the combination of incoming protons with oxygen. Jonathan Nally described the latest experiments where spacecraft will be sent ...

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Chemicals on the Great Barrier Reef

This program deals with a range of human impacts on the Great Barrier Reef. Herbicides from land runoff have been traced to algae and sea grasses in river mouths and coastal zones along the Great Barrier Reef. Effects include retardation of photosynthesis and growth of corals. Other pressures on the reef include high water ...

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Lakes in Antarctica

Scientists are not complacent. We still have a lot to learn about the water cycle. The discovery of glacial lakes under the ice in Antarctica actively transporting water between reservoirs was a surprise. These lakes can be up to 3km beneath the ice sheets. The pressure of the ice above helps to melt the ice, forming lakes. ...

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Choleric waters still run deep with disease

With 884 million people globally not having access to clean drinking water, it comes as no surprise that cholera keeps on killing. Dr Karl explains arguably the most important medical discovery of the 20th century. An excellent resource for the understanding of why cleanliness of water is fundamental to the control of infectious ...

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Killer cholera begins where other diseases end

This ABC article by Dr Karl continues his examination of the causes, effects and treatments for cholera. A good explanation of how the body responds to the disease cholera and when healthy, maintains a balance in its absorption of water through the digestive system. The historical background to developing treatment for ...

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Solar thermal electricity

This program gives an update on research into solar thermal electricity. Liddell Power Station in the Hunter Valley, NSW is a hybrid power station using solar energy to pre-heat water and so reduce the use of coal and the production of carbon dioxide. Some scientists claim that harnessing the solar heat in an area 50km ...

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Plane Truths

In this ABC article or podcast Dr Karl provides statistics about comparative safety of different modes of travel and then justifies why flying is so safe.

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WA students compete in US BioGENEius challenge

Yasmin Soliman and Kayla Mizzi are the two high school students who are finalists from Western Australia for the BioGENEius challenge in Atlanta Georgia. Both girls share their research and enthusiasm for science. Download the audio or view the transcript of this ABC radio interview.

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Science student of the year Western Australia 2008

This friendly chat helps to break down some stereotypes about scientists. Jacinta Delhaize travelled to Chile and work at the Gemini South Observatory in the Andes Mountains. She talked about her experience with high school students and for this received the Science Student of the Year award in 2008. Her PhD researches ...

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Cholera's prevention preferable to its cure

This ABC article by Dr Karl describes in detail aspects of how water balance occurs with some interesting examples of when things go wrong. He then outlines the disease, cholera and how it is associated with bacteria carried by water and the disruption to our water balance. Dr Karl looks at the causes and effects of cholera ...

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Space telescopes and servicing Hubble

This radio interview gives examples of how improvements in technology have influenced astronomy. The Space Shuttle Atlantis is paying a service call to the Hubble Space Telescope, repairing, replacing and deploying new equipment. Jonathan Nally describes the mission and looks at other large telescopes in orbit now, and ...

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Radio National: The Awabakal language of the Newcastle area

The Awabakal language, once common in the area now known as Newcastle, was almost 'lost'. It is being brought back to life using old texts and translations left by an early missionary. In this audio clip, listen to a discussion about the importance of reconstructing the Awabakal language and the challenges this poses.

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Radio National: Teaching Aboriginal languages in schools

Would you like to learn another language? This audio recording features a number of Aboriginal and non-Aboriginal Australians discussing both the teaching of Aboriginal languages in schools and the benefits that this teaching offers all Australians.

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Microwave explosions

This ABC article and podcast by Dr Karl describes how superheated water can be produced by heating in a microwave and the dangers. This program could be a useful resource when studying the particle theory of matter.

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Radio National: Using the word 'you' in English

Have you ever wondered why we use the word 'you' to refer to both one 'you' or many of 'you'? Or have you ever heard anyone refer to many of 'you' using the once grammatically incorrect word 'youse'? This program considers the words we use when we are talking to each other face to face. It also looks at the use of the word ...

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Radio National: Ways of talking

The ways that people talk can reveal much about themselves, and can also cause strong responses in listeners. Julian Burnside reads from his book 'Word watching' about the controversy over the pronunciation of the letter 'h', and how the pronunciation of words starting with 'h' has changed over the centuries. He suggests ...

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Heywire: Sporting Volunteers

Sport is a way of life for many Australians. Often all we see are the players on the field, but have you ever thought about what is involved behind the scenes? Jarvis Holt from Kurraca, Victoria, was a finalist of the 2012 Heywire storytelling competition for young people. Listen as he explores the whole army of people ...

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Heywire: At home in the country

What is the best thing about living on a farm out in the countryside? What is the worst? How does where you live make you the person you are today? Listen to Jane Gould from Boort, finalist of the 2012 Heywire storytelling competition for young people, talk of the connectedness she feels to the land on which she lives.