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PODCAST

Science On Top

The Science on Top Team

The Australian podcast about science, health and technology news. Join Ed Brown and his panel of co-hosts each week as we talk about the latest and coolest research and discoveries in the world of science. We"re joined by special guests from all over the science field: doctors, professors, nurses, teachers and more.

science natural sciences

All Episodes

43:26

SoT 157: The Cephalopod Happy Ending

Science On Top ·

2014/08/22

The Rosetta space probe has finally arrived and is currently in orbit around the comet 67P Churyumov-Gerasimenko! Rosetta is now officially the first spacecraft to rendezvous with a comet.A previously unknown tribe of humans has emerged from the rainforest in Brazil and made contact with a settled indigenous community. They are believed to have fled illegal loggers and drug traffickers, but some have already contracted influenza.Newly discovered crAssphage could be the most common virus in your

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0:00

SoT Special 014 - Science In Australia

Science On Top ·

2014/08/10

At our 150th episode celebration earlier this year, we were fortunate to have Dr. Krystal Evans address the audience to talk about science in Australia. Dr. Evans is a medical researcher at the Walter and Eliza Hall Institute where she is working on Malaria treatment and developing a vaccine. She is a leading advocate for science and technology, and was a founding member and Chair of the Australian Academy of Science’s Early and Mid Career Researcher Forum. In this talk she looks at how Australia

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42:33

SoT 156: Rubber Duckie Comet

Science On Top ·

2014/07/31

Steve Nerlich from the Cheap Astronomy podcast gives us an update on the roller-coaster life of the ISEE-3 space probe. It was alive, then it died, then it was resurrected then it seemed dead but now it may be still alive again! Paleontologists have discovered the fossilised remains of one of the world's first known predators that lived in the sea around 520 million years ago. The fossils were detailed enough to show some of the brain structures. Researchers at UCLA have found eight types of

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35:21

SoT 155: The Grumpiest Mouse

Science On Top ·

2014/07/26

Twenty-seven months ago the "Mississippi Baby" stopped HIV treatment and was believed to be free of the virus. Unfortunately, that changed this month when test showed the virus is back. It had gone into hiding and the now four-year-old girl will face years, possibly her whole life, on antiretroviral therapy. A scientist at a CDC research centre found a cardboard box containing six vials of the smallpox virus in a storage room. The vials are believed to have been left there since the 1950s, and there

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58:49

SoT 154: Epic Pie Fights

Science On Top ·

2014/07/16

We’re not comfortable being bored, according to a study published in the journal Science. The paper suggestedpeople would rather give themselves electric shocks than be left alone with their thoughts. Where humans detect colours via three receptors in our eyes, the mantis shrimp have twelve. And a new study indicates six of those detect five different wavelengths of ultraviolet light. The mantis shrimp has adapted “nature’s sunscreens’ – mycosporine-like amino acids – and turned them into

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59:54

SoT 153: Electric Cats

Science On Top ·

2014/07/11

The announcement earlier this year that the BICEP2 team had discovered gravitational waves is now mired in controversy. Dr. Alan Duffy joins us to explain why 'the biggest announcement' is now probably meaningless. In 2012, Facebook manipulated the newsfeed of 689,003 users as part of a psychological experiment. The company claims it was able to alter the moods of some users, but the study's methodology and ethical concerns have drawn widespread criticism. The electric eel - described by one

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43:24

SoT 152: A Brain The Size Of A Walnut

Science On Top ·

2014/06/29

Koalas will cuddle specific tree types during summer heatwaves to cool down. Hugging the right tree can reduce a koala's body temperature by almost 70 per cent. Researchers have sequenced the genome of Eucalyptus grandis, a common type of gum tree. And this genetic blueprint, according to the researchers, could help design more powerful and efficient jet fuels. The project took five years and involved 80 scientists from 18 countries. A 36 year-old space probe, mothballed by NASA, has just been

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34:20

SoT 151: So Cute I Want to Puke

Science On Top ·

2014/06/14

A study suggests hurricanes with 'female' names have killed more people than 'male' names. But it's MUCH more complicated than that. Men are more likely than women to report severe pain after major surgery. But Women are more likely to complain after minor surgery. Because reasons. A tiny tick trapped in a droplet of amber more than 15 million years ago appears to have been infected with a bacteria similar to the one that causes Lyme disease in humans. The oldest known pair of trousers has been

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41:05

SoT 150: Several Moonwiches

Science On Top ·

2014/06/09

Greenland is more vulnerable to melting than we thought, and the West Antarctic ice shelf is melting much faster and is now 'unstoppable'. The Great Red Spot on Jupiter is shrinking and changing shape. The top 10 new species of 2013 have been announced. Some of them are cute. The first farm to supply insects for human consumption has opened, but faces regulatory, engineering and cultural hurdles. Jupiter's moon Ganymede has layers of ice and water beneath its surface. NASA calls it a 'moonwich' but

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33:30

SoT 149: Going FODMAP Free

Science On Top ·

2014/05/28

The Australian researcher who provided the best evidence for non-celiac gluten sensitivity has now done more extensive research. He now believes gluten may not be the culprit after all. Polar bears, the largest land predators alive, have many genetic tricks they have developed to help them survive on an extremely high-fat diet. Ratites - flightless birds like emus, ostriches and rheas - have long been thought to have evolved from a single flightless ancestor. But now new research made with the

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45:48

SoT 148: Birdie Feet Marks

Science On Top ·

2014/05/26

Man-made electromagnetic noise is affecting migratory birds. But it's not wi-fi, microwaves or any of the usual culprits - just good old fashioned AM radio. US scientists have developed artificial DNA - X and Y base pairs - which then replicated with the normal G, A, T and C molecules when the cell divides. This could pave the way for new methods of developing drugs and other chemicals. Or Godzilla. A study with mice involving exercise, electric shocks and drugs have given new insights into how

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40:27

SoT 147: Exxonmobillium

Science On Top ·

2014/05/21

Microbes from lakes in the French Pyrenees thrive on the fungus that has been linked to a dramatic decline in amphibian populations. A new spider species has been found in the Namibian desert, and it does cartwheels to escape predators. Rats and mice show increased stress levels when handled by male researchers rather than women, potentially skewing study results. The average height of British soldiers fighting in the First World War was 168cm. Today the average height for men of the same age is

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42:22

SoT 146: It Hides My Face

Science On Top ·

2014/05/10

Evolutionary biologist and author of Sex, Genes & Rock 'n' Roll Professor Rob Brooks joins us to talk beards, monogamy and evolution. Beards seem to be popular now, but we may be approaching 'peak beard', where beards are so common they lose their novelty appeal. Do babies cry at night to stop their parents having more babies? Evolutionary biologist David Haig thinks they may be unintentionally sabotaging their parents' sex lives. A ten year, worldwide project has finally sequenced the Tsetse fly

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31:34

SoT 145: This Is Not My Office

Science On Top ·

2014/05/04

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.

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56:27

SoT 144: Fetch Me My Big Hammer

Science On Top ·

2014/04/27

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

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35:27

SoT 143: Little Rats Sneezing

Science On Top ·

2014/04/18

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

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45:08

SoT 142: It’s Like an Old Teddy Bear

Science On Top ·

2014/04/12

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

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28:35

SoT 141: The Sun, the Stars or by Magnetic Compass

Science On Top ·

2014/04/06

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!

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51:32

SoT 140: Dick Cheney or The Penguin?

Science On Top ·

2014/03/26

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

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37:32

SoT Special 013 - Gravitational Waves and Cosmic...

Science On Top ·

2014/03/24

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.

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