Science On Top
The Australian Podcast putting Science on Top of the agenda

The world's longest continuously running lab experiment, The Pitch Drop, finally drops for the ninth time.

Cephalotes ants can glide to nearby trees when they find themselves skydiving. Also they use their heads as shields.

The most Earth-like exoplanet yet has been discovered, just 10% bigger than our planet.

We all know malaria is spread by mosquitoes, but in 1995 in Taiwan there was an outbreak that spread throughout a hospital without any mosquito assistance.

Direct download: SoT_0145.mp3
Category:general -- posted at: 11:22pm AEST

Continental drift could have been started by a massive meteorite impact 3 billion years ago.

Fossilised daddy longlegs reveal the arachnids had an extra pair of eyes 305 million years ago. And weren't cute then, either.

A new study suggests that even if there was liquid water on the surface of Mars billions of years ago, there wasn't enough atmospheric pressure to keep it liquid for long.

The UK Government has stockpiled over £500m worth of the antiviral drug Tamiflu. A study now finds that the drug would have little to know effect on the spread of influenza or the duration of flu symptoms. According to medical journalist Ben Goldacre, this finding is symbolic of substantial transparency issues within the pharmaceutical industry.

Ten world-class violinists tested expensive 'Old Italians' - Stradivarius and del Gesu violins - against modern, much cheaper instruments. The modern instruments were overwhelmingly preferred.

Direct download: SoT_0144.mp3
Category:general -- posted at: 10:16pm AEST

We have six basic facial expressions, but computer software has shown we combine them to display hybrid emotions, like 'happily surprised' or 'angrily surprised'.

Scientists have long suspected that Saturn's sixth largest moon, Enceladus, held large amounts of water beneath its icy surface. But now gravity measurements have found a large ocean below the southern polar region.

Genetic modification could allow us to grow plants that are more easily broken down to make biofuels and paper.

Contrary to a lot of media reporting, rats might not be completely off the hook when it comes to spreading the Black Death.

On April 21st, NASA plans to crash a recent lunar probe, LADEE, into the moon.

Direct download: SoT_0143.mp3
Category:general -- posted at: 8:53pm AEST

A woman with a bone disorder has had her cranium replaced with a 3D printed one, and shows no sign of rejection.

Skeletons unearthed last year from a burial ground in London may suggest that the Black Death plague was spread via the air, not tick bites from rats.

The rubber hand illusion is an old trick where your brain is fooled into thinking a rubber hand is your own. Psychologists in Italy have now made people believe the hands were made of marble. Because Italy.

Could the Permian extinction, the largest mass-extinction on Earth, have been caused by the farts of single-celled microbes?

Obakata, lead researcher in the STAP papers, found guilty of fabricating data. And an acupuncture trial gets undue media attention.

Direct download: SoT_0142.mp3
Category:general -- posted at: 9:27pm AEST

Giant pythons in Florida's everglades can navigate vast distances, and we're not sure how.

For the first time ever, an asteroid in our solar system has been discovered with a ring system.

Dark chocolate is good for you, but it's the bacteria in your gut that make it so.

Astronomers have discovered an icy body with an orbit so big it never gets closer than 12 billion kilometers from the Sun!

Direct download: SoT_0141.mp3
Category:general -- posted at: 3:18pm AEST

The most comprehensive infrared search of our skies has found no trace of "Planet X", the mythical giant planet on the edge of our solar system.

The troublesome Western Corn Rootworm is developing a resistance to the genetically modified corn designed to thwart it.

British archaeologists have found what they say is the world's oldest complete example of a human being with metastatic cancer.

Tracing human migration across the pacific 3,000 years ago is tricky, but tracing the chickens they brought with them might be a better method.

Climate For Change is a exciting grass-roots activism movement starting up in Melbourne, Australia. Katerina Gaita joins us to explain what they're doing and how you can be part of it.

Direct download: SoT_0140.mp3
Category:general -- posted at: 9:49am AEST

Last Monday, astronomers announced what has been described as "the biggest thing since dark energy" - detection of gravitational waves from the afterglow of the big bang. We got astronomer Dr. Alan Duffy from Swinburne University on to tell us what that means, and what it says about the very early stages of our Universe.

Direct download: SoT_Special_013.mp3
Category:general -- posted at: 1:46pm AEST

More controversy over stress-induced stem cells, as co-authors call for the retractions of the papers.

An aluminium suit could enable divers to travel to depths of 305 meters, move around and collect samples.

A giant virus has been discovered in 30,000 year old Siberian permafrost. It's big and it eats amoebas.

An Australian team is working on a project to clear space junk with a powerful ground-based laser.

A study of how men and women perceive each other's mathematics skills suggests that both men and women unconsciously - and wrongly - believe women are 'bad' at maths.

Direct download: SoT_0139.mp3
Category:general -- posted at: 4:57pm AEST

More studies finding no evidence of 'wind turbine syndrome', plus a discussion on dealing with climate change deniers.

Could enough wind turbines reduce the force of hurricanes? Maybe, but it would need A LOT of turbines.

In 2011 a 6 - 9 million year old whale graveyard was discovered at Cerro Ballena (Whale Hill) in Chile. But with time running out, researchers turned to a digital method of preserving the environmental context in 3D.

A thin, stretchy, electric membrane moulded to a patient's heart could be the next stage in health monitoring.

Direct download: SoT_0138.mp3
Category:general -- posted at: 11:29am AEST

Vaccines might not need to be kept cold to the extent previously thought. This could make vaccinations in third world countries cheaper and easier.

The oldest crystal on Earth has been dated and found to be 4.4 billion years old. This means the Earth had developed a crust very early on, perhaps only a few hundred million years after formation.

What's the best way to count whale populations? It could be from space.

To learn about how humans and dogs process sounds and emotions, researchers had to train dogs to lie still in an fMRI machine. Which is amazingly cute.

The fourth new species of an Australian marsupial with bizarre sexual behaviour has been discovered. These rodent-like animals actually disintegrate during their marathon sex-fests.

Direct download: SoT_0137.mp3
Category:general -- posted at: 11:22am AEST