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Trumix.com : Podcast : Science and Medicine : Science and Medicine

The Science Show

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Language: English
Category: Science and Medicine / Science and Medicine
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Radio National's science flagship: your essential source of what's making news in the complex world of scientific research, scandal and discovery.


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Science Show - 2008-07-05

Music and the brain It has become known as the universal language, but why is it that music—from Chopin to heavy metal—beguiles us so much? Brain scientist Oliver Sacks explores the origins of our love of music through cases he's written about in his latest book Musicophilia. And we hear from brain biologist Alan Harvey, who has also written about what connects our passion for music with our biology. ...

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[ Sat, 05 Jul 2008 00:00:00 +1000 ]


Science Show - 2008-06-28

The DNA Files - Rewriting Heredity: Environment and the Genome The Science Show presents another program in the series, The DNA Files. This week, Rewriting Heredity: Environment and the Genome. Our genomes are constantly at work, directing such vital functions as eating and breathing. Researchers are starting to understand that everything from diet to air pollution to stress has great influence on how our genomes function and what that might mean for our health. Beginning before birth, the envir...

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[ Sat, 28 Jun 2008 00:00:00 +1000 ]


Science Show - 2008-06-21

The DNA Files - Designing the Garden: Food in the Age of Biotechnology Some say manipulating genes in plants and animals is the solution to world hunger; others say genetically modified organisms are neither safe to eat nor to grow. How do we understand what´s really on our dinner plate? This program, from Sound Vision Production in the United States, looks at the debates surrounding genetically modified food. ...

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[ Sat, 21 Jun 2008 00:00:00 +1000 ]


Science Show - 2008-06-14

Voyage to the Southern Ocean This week on The Science Show Margot Foster takes us on a voyage aboard the Aurora Australis, Australia's research vessel which works in Antarctica. We'll travel from Hobart to the deep Southern Ocean. On board we'll join scientists at work as they sample plants, animals and ocean water. Vast areas of Antarctic waters are described as a black hole of biodiversity knowledge. Very little is known about the ecology. The race is on to learn as much as possible, quickly, ...

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[ Sat, 14 Jun 2008 00:00:00 +1000 ]


Science Show - 2008-06-07

Business leaders discuss climate Scientists and leaders from business and government met in Canberra in May 2008 to discuss the need for action over climate change. Tim Flannery explains the urgency and suggests a radical solution. Tim Costello says climate change is causing poverty and undoing 50 years of development work in the world´s poorest countries. The group discussed the technologies available for saving energy, and the options ahead for reducing carbon output through carbon trading. ...

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[ Sat, 07 Jun 2008 00:00:00 +1000 ]


Science Show - 2008-05-31

Phoenix lands on Mars After the crushing failures of previous Mars missions we now have a winner. Phoenix has defied the odds to land perfectly and will soon begin sampling the sub-surface of the Martian landscape. Jonathan Nally reports on the latest achievements. Oldest fossil vertebrate embryo John Long describes a 380 million-year-old specimen of an embryo connected by the umbilical cord to its mother. The discovery, a new species in itself, reveals advanced reproductive biology comparabl...

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[ Sat, 31 May 2008 00:00:00 +1000 ]


Science Show - 2008-05-24

Thylacine DNA resurrected Genetic material from a 100-year-old pouch young thylacine or Tasmanian tiger at the Victoria Museum was taken and some genes were resurrected in a mouse. The last thylacine died in captivity in Tasmania in 1936. The specimens were stored in alcohol, so the DNA was preserved, although the genes were fragmented. The thylacine DNA was injected into very early mouse eggs. It gets incorporated into the mouse genome and is expressed, in this case, in the bone cells of the m...

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[ Sat, 24 May 2008 00:00:00 +1000 ]


Science Show - 2008-05-17

Hydrogen produced from water using aluminium and gallium Jerry Woodall describes a method of producing hydrogen using water, aluminium and gallium. Natural burial Cremation in a coffin produces 160Kg of carbon dioxide. An alternative is cardboard coffins and biodegradable shrouds. Some are suggesting the establishment of burial grounds in forests, so that decomposing bodies eventually become sequestered into the wood of trees, rather than becoming gaseous carbon dioxide, adding to an already o...

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[ Sat, 17 May 2008 00:00:00 +1000 ]


Science Show - 2008-05-10

Research funding in Australia Vicki Sara argues the Australian Research Council needs to have its funding quadrupled. She says the ARC´s situation is similar to it´s position a decade ago. Australia is losing people to better paying positions aborad. Post doctoral fellowships and PhD scholarships are offered at $20,000. This compares with marketplace positions easily 5 times this level. The result is people leave universities and move away from research. Tertiary education is in decline. Vicki...

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[ Sat, 10 May 2008 00:00:00 +1000 ]


Science Show - 2008-05-03

Australian sea floor expands Australia is 2.5 million square-kilometres larger following the United Nations recognising Australia´s claim to more of the sea floor around the continent. Australia doesn´t own the fish in the water, but it is responsible for the sea floor. Some trenches go to a depth of 10 kilometres below the surface. Tim O´Hara describes some of the animals which live at these depths. The Loh down on science - Scent of a stripper Sandra Tsing Loh discusses pheromones, how th...

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[ Sat, 03 May 2008 00:00:00 +1000 ]


Science Show - 2008-04-26

Hydrogen production from algae Conventional hydrogen production is expensive. A cheaper method involves using algae. The algae live in a series of ponds. Hydrogen is collected as it bubbles to the surface. An advantage is microalgae can be located on non-arable land and don´t compete with food production. Nuclear fuel pellets found in a German garden In February 2007, fuel pellets were found in the garden of a private home. Forensic science helped determine the material´s origin. They were...

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[ Sat, 26 Apr 2008 00:00:00 +1000 ]


Science Show - 2008-04-19

Galactic clusters Clusters of galaxies are the largest gravitationally bound systems in the universe. Some are 1015 solar masses. That´s 1,000,000,000,000,000 times the mass of the sun. Christine Jones describes how and why galaxies cluster. One famous cluster is the bullet cluster. Death Star Dan Evans has found two galaxies merging. Each hosts a supermassive black hole. One is sending out a jet of particles. This contradicts the earlier idea that black holes only swallow matter. Oscillati...

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[ Sat, 19 Apr 2008 00:00:00 +1000 ]


Science Show - 2008-04-12

Prospects for coral reefs Charlie Veron looks at threats to the Great Barrier Reef. The crown of thorns starfish and sediment runoff pale compared to the looming threats of warmer and more acidic seas. Ten Questions Science Can't Answer (Yet!) Michael Hanlon discusses some of the questions in his book, questions which science has not yet come to grips with, or has chosen to ignore. He argues quite plausibly that dogs can have a sense of humour. He has some new suggestions for current dilemmas ...

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[ Sat, 12 Apr 2008 00:00:00 +1000 ]


Science Show - 2008-04-05

Green at work Bernie Hobbs describes the ABC´s attempt to reduce consumption and waste. Quantum dots and nanowires Quantum dots are small particles of nanometre scale. They are typically 10 nanometres in diameters. The dots physical properties change at this level. Nanowires act as laser cavities. Just as with nanodots, physical properties at the nano scale are quite different. Applications include lasers for optical communications and night vision. Gene Radar Nano technology in energy ...

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[ Sat, 05 Apr 2008 00:00:00 +1000 ]


Science Show - 2008-03-29

Humans - built for long-distance running? Daniel Lieberman is interested in what makes the human body look the way it does. His passion is running. There are features over our whole body which help us to run well. One is the toes. Short toes help running. Tendons in the leg act as springs. These evolved around 2 million year ago. The bum tenses with every stride, preventing the trunk from pitching forward. There are features in the spine, neck and head. These all make us good long-distance runne...

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[ Sat, 29 Mar 2008 00:00:00 +1000 ]


Science Show - 2008-03-22

One laptop per child It was the ambition of Kevin Rudd during the last election and it is the plan being realised by Nicholas Negroponte of MIT. The only way Professor Negroponte can realise his dream is by having cheap laptops, costing $100, or eventually, less. How is this done? And what difference do these computers make in the villages of Africa, South America and Asia? Professor Negroponte, founder of the Media Lab at MIT and author of the bestseller Being Digital, talks to an audience in B...

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[ Sat, 22 Mar 2008 00:00:00 +1000 ]


Science Show - 2008-03-15

Solid light Solid light describes a method of obtaining a phase transition in light. At a critical point light crystallises. This form of light was not predicted! It is a new exotic state for light. Despite some precursor experiments, the idea is to create a system where this effect can be observed. This would consist of a trap where a single photon reacts with a single atom. Quantum Entanglement Quantum entanglement is a strange telepathic link which allows particles to influence each otherÂ...

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[ Sat, 15 Mar 2008 00:00:00 +1000 ]


Science Show - 2008-03-08

Metal ions in proteins potential cause of disease Copper-containing proteins play important roles in organisms ranging from bacteria and yeast to plants and animals. The objective is to understand the properties and biological functions of wild type copper-zinc superoxide dismutases (CuZnSOD) and to understand why mutant human CuZnSOD proteins cause familial amyotrophic lateral sclerosis. Gut microbes The average person has 1.5Kg of gut microbes. They affect biology and health. Abnormalities i...

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[ Sat, 08 Mar 2008 00:00:00 +1000 ]


Science Show - 2008-03-01

Cell phone that reads Ray Kurzweil describes a cell phone or mobile phone that can take a picture of text and then reads the text. It´s for blind and dyslexic people. Virtual tools to teach children with autism Children with autism had their communication skills improved when they played with virtual tools. Justine Cassell is trying to determine why children with autism can learn better from a machine than they can from people. New approaches to gene therapy In 1975 David Baltimore was awa...

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[ Sat, 01 Mar 2008 00:00:00 +1000 ]


Science Show - 2008-02-23

Science under George W. Bush David Baltimore explains why US President George W. Bush has been unkind to science. While enormous amounts of money have gone into defence, funding for health research has decreased by 10%. Scientific findings have been ignored. Scientists have been muzzled. Science has been little mentioned in the current presidential campaign. Science funding in Ireland and the potential and ethics of animal cloning Ireland has a plan to double the number of PhDs. The country i...

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[ Sat, 23 Feb 2008 00:00:00 +1000 ]


Science Show - 2008-02-16

Balancing Nature 4 - New Zealand Census of Antarctic marine life Michael Stoddart describes Australia´s involvement in the census of Antarctic marine life and what the census hopes to achieve. The census is designed to allow more accurate monitoring of the oceans which are thought to be changing quickly. The data may also help confirm whether the oceans of Antarctica are a biological hotspot, an area from where species are thought to evolve. Mesothelioma diary 4 Jim Holmes continues the di...

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[ Sat, 16 Feb 2008 00:00:00 +1000 ]


Science Show - 2008-02-09

Balancing Nature 3 - The Philippines Tasmanian Tigers Catherine Medlock describes the Tasmanian Museum´s collection of young Thylacine, or Tasmanian Tigers. The museum has 5 of the nine specimens in existence. They were extinct on the mainland 5,000 years ago and were only found in Tasmania until more recent times despite reports that they are sighted from time to time. Nevertheless, there is no evidence they persist. The last Thylacine died in the Tasmanian zoo in 1936. Tasmanian Museum ...

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[ Sat, 09 Feb 2008 00:00:00 +1000 ]


Science Show - 2008-02-02

Balancing Nature 2 - Vietnam Some of the richest and least explored forests on the planet are to be found in the mountainous heart of central Vietnam. Aside from recent discoveries of new orchids, butterflies, and snakes, several new mammal species have been discovered, such as the antelope-like saola, the large antlered muntjac and several doucs, or 5-coloured monkeys. Yet despite commitment for preservation by local authorities, this population of threatened species is at risk from illegal log...

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[ Sat, 02 Feb 2008 00:00:00 +1000 ]


Science Show - 2008-01-26

Balancing nature: Australia Wiping out Australian species While tracking the introduction of an African grass which has become a significant problem in the Northern Territory, ecologist Gary Cook discovered that from the 1920s to 2000, 84 species of grasses and legumes were intentionally introduced to Australia. In official documents he found that in some cases these introductions appear to have been part of a plan to wipe out Australian species: not just plants, but animals as well. Hot an...

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[ Sat, 26 Jan 2008 00:00:00 +1000 ]


Science Show - 2008-01-19

The Garrison Keillor of Chemistry Peter Agre comes from the permafrosted precincts of the mid-Western USA celebrated every week on A Prairie Home Companion. He calls himself a kind of atomically charged Garrison Keillor His approach, though laconic, was good enough to score him a Nobel Prize - and he tells his life story in a Deakin Lecture of relaxed charm and scientific acuity. Peter Agre - my life in science Peter Agre´s public lecture My life in science traces the unusual story of his own...

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[ Sat, 19 Jan 2008 00:00:00 +1000 ]


Science Show - 2008-01-12

Saving Nemo The speakers in today´s forum describe how the changing climate is affecting coral. We´ll hear about the effect of green zones where fish are protected. There´s the latest research on sharks and concerns for their future. And do fish larvae stay close to home or do fish protected in one region actually influence the populations of the same species in other neighbouring regions. ...

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[ Sat, 12 Jan 2008 00:00:00 +1000 ]


Science Show - 2008-01-05

Meltdown Daniel Grossman takes us to both ends of the Earth, to gain firsthand accounts of the latest research on the state of the world´s ice cover in this new era of climate change. He takes us on a global tour from the massive ice sheets of Greenland and Antarctica, and the sea ice of the far north and south, introducing us to leading scientists in the field. We hear about the implications of melting ice the world over and it´s implications for the world´s ecosystems, its wildlife and cons...

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[ Sat, 05 Jan 2008 00:00:00 +1000 ]


Science Show - 2007-12-29

Alfred Deakin Innovation Lecture Are we missing out on the full benefits of science and technology because of outdated ideas about copyright and patenting? Could the key to feeding the world be locked up in a company fridge somewhere? Open-source software has transformed the internet, underpinning the phenomenal growth of Google, Ebay and YouTube. What can science learn from this revolution? In our rush to protect intellectual property, have we damaged our capacity to deliver solutions for the c...

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[ Sat, 29 Dec 2007 00:00:00 +1000 ]


Science Show - 2007-12-22

Mesothelioma diary part 2 Dr Jim Holmes, a rural psychiatrist, presents a second extract from a Science Show diary on what it is like to receive a diagnosis of mesothelioma. Since his first broadcast, two weeks ago, Dr Holmes has sung in the choir at the University of Sydney despite having only one working lung, has sung in a performance of Messiah, and has flown to Britain to say goodbye to relatives. Krill Krill are kept in tanks at the Australian Antarctic Division in Hobart. The aim is to ...

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[ Sat, 22 Dec 2007 00:00:00 +1000 ]


Science Show - 2007-12-15

Corals and crustaceans in distress A ten-year study has concluded and appears as the cover-story in the latest edition of the journal Science It brings together the two great threat to coral reefs; ocean warming and acidification. The threat is much greater than previously thought. Coral reefs only prosper if carbonate ions are present in the water at the right concentrations and this only happens with carbon dioxide in the atmosphere at levels under 450 parts per million. Millions of other spec...

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[ Sat, 15 Dec 2007 00:00:00 +1000 ]


Science Show - 2007-12-08

Mesothelioma diary Jim Holmes is a doctor of psychiatry. He received the diagnosis of his mesothelioma while attending a patient. This is his story. Lichens Dolerite boulders as found in the Lake St Clair Cradle Mountain National Park in Tasmania can support up to 30 species of lichens. Lichens are a combination of alga and fungus. The fungus and alga never occur alone. They are only found together as a lichen. The combination is specific. The alga makes the food from photosynthesis. The home ...

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[ Sat, 08 Dec 2007 00:00:00 +1000 ]





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