Kilometre-wide erosion gullies eating their way across Australia’s northern landscape are proving likely culprits as the main source of the sediments that are flushed into the Gulf of Carpentaria each year, possibly smothering prawn and barramundi breeding and rearing habitats.
Continue reading Erosion and dams threaten barramundi and prawn fisheries
RMIT University researchers have used nanotechnology to create a pioneering sensor that can precisely measure one of the world’s most poisonous substances—mercury.
The mercury sensor developed by RMIT’s Industrial Chemistry Group uses tiny flecks of gold that are nano-engineered to make them irresistible to mercury molecules.
Continue reading Goanna team finds software bugs before they bite
In July 2009, the Australian Government responded to urgent global calls to use the Southern Hemisphere’s flu season as a catalyst for investigating the severity and global threat of the H1N1 flu strain.
Children with imaginary friends are better at learning to communicate than those who do not have one, according to psychologist Dr Evan Kidd at La Trobe University in Melbourne.
In a study of 44 children, Evan and his colleague Anna Roby showed that the 22 children who had imaginary friends were able to get their points across more effectively when talking.
Two thousand years ago, Roman glass blowers used gold nanocrystals to create vases with brilliant colours ranging from red to purple. Today, gold nanocrystals are being used as catalysts in chemical reactions and may even become high-density data storage devices.
Gold nanocrystals aren’t gold in colour. They change colour as their size and shape change.
Continue reading From Roman nanocrystals to new gold catalysts
Tomorrow’s solar panels could bear an uncanny likeness to Australia’s polymer banknotes.
In fact, the first prototypes of a new kind of solar panel are being printed on the same printing presses that print Australia’s money.
Marnie Blewitt wants to know how a human being is made: how does a single fertilised egg develop into an adult with millions of cells performing a myriad of different functions. It’s the hottest issue in genetics, and one that’s close to her right now as she is expecting her first child soon.
Zenobia Jacobs wants to know where we came from, and how we got here. When did our distant ancestors leave Africa and spread across the world? Why? And when was Australia first settled?
These are difficult and controversial questions. But Zenobia has a deep understanding of time and how to measure it. She has developed a way of accurately dating when individual grains of sand were buried with human artefacts. And that technique is transforming our understanding of human evolution.