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

The Nobel Prize in Physiology or Medicine 2014 was awarded with one half to John O'Keefe and the other half jointly to May-Britt Moser and Edvard I. Moser "for their discoveries of cells that constitute a positioning system in the brain".
The Nobel Prize in Physics 2014 was awarded jointly to Isamu Akasaki, Hiroshi Amano and Shuji Nakamura "for the invention of efficient blue light-emitting diodes which has enabled bright and energy-saving white light sources".
The Nobel Prize in Chemistry 2014 was awarded jointly to Eric Betzig, Stefan W. Hell and William E. Moerner "for the development of super-resolved fluorescence microscopy".
A team of scientists took soil samples at 596 sites across New York’s Central Park. They analysed the soil samples an discovered 167,000 different kinds of microbes, the vast majority of which were unknown to science.
The characteristics of a previous mate can affect the attributes of a fruit fly's offspring. Even if the previous mate is not the genetic father of the offspring.
Researchers at the Wake Forest Institute for Regenerative Medicine in Winston-Salem, North Carolina are developing artificial penises developed from a patient's own cells. The team is hoping to receive approval from the US FDA to begin human testing the lab-grown penises within five years.

Direct download: SoT_0164.mp3
Category:general -- posted at: 3:39pm AEST

The Ig Nobel Prizes honour achievements that first make us laugh, then make us think. We take a look at this year’s winners: from banana peels to people dressed as polar bears!

PHYSICS PRIZE
A team from Japan for measuring the amount of friction between a shoe and a banana skin, and between a banana skin and the floor, when a person steps on a banana skin that's on the floor.
Banana peel slipperiness wins IgNobel prize in physics

NEUROSCIENCE PRIZE
Scientists from China and Canada for trying to understand what happens in the brains of people who see the face of Jesus in a piece of toast.
University Of Toronto Researchers Find ‘Seeing Jesus In Toast’ Phenomenon Perfectly Normal

PSYCHOLOGY PRIZE
A team from Australia, the UK and the US for amassing evidence that people who habitually stay up late are, on average, more self-admiring, more manipulative, and more psychopathic than people who habitually arise early in the morning.
THE DARK TRIAD: People Who Love The Night Have Psychopathic Traits

PUBLIC HEALTH PRIZE
A number of scientists from the Czech Republic, Japan, the USA and India for investigating whether it is mentally hazardous for a human being to own a cat. Turns out it can be, if you get infected with our old friend Toxoplasma Gondii.
Parasite makes men dumb, women sexy

BIOLOGY PRIZE
A team from the Czech Republic, Germany and Zambia for carefully documenting that when dogs defecate and urinate, they prefer to align their body axis with Earth's north-south geomagnetic field lines.
Dogs align their bodies along a North-South axis when they poop
Do Dogs Line Themselves Up With the Earth’s Magnetic Field to Poop?

ART PRIZE
Three scientists from Italy, for measuring the relative pain people suffer while looking at an ugly painting, rather than a pretty painting, while being shot [in the hand] by a powerful laser beam.
ITALY: Beautiful art eases pain

ECONOMICS PRIZE
ISTAT — the Italian government's National Institute of Statistics, for proudly taking the lead in fulfilling the European Union mandate for each country to increase the official size of its national economy by including revenues from prostitution, illegal drug sales, smuggling, and all other unlawful financial transactions between willing participants.
In Italy, prostitutes and illegal drugs could shrink the deficit

MEDICINE PRIZE
A team from the USA and India for treating "uncontrollable" nosebleeds, using the method of nasal-packing-with-strips-of-cured-pork.
The Bacon Tampon: Doctors Find Salt Pork Stops Nosebleeds

ARCTIC SCIENCE PRIZE
Scientists from Norway, Germany, USA and Canada for testing how reindeer react to seeing humans who are disguised as polar bears.
Svalbard Reindeer: Thriving Again on the Tundra

NUTRITION PRIZE
Scientists in Spain for their study titled "Characterization of Lactic Acid Bacteria Isolated from Infant Faeces as Potential Probiotic Starter Cultures for Fermented Sausages."
Pooperoni? Baby-Poop Bacteria Help Make Healthy Sausages

Direct download: SoT_0163.mp3
Category:general -- posted at: 2:24pm AEST

Professor Stephen Hawking has written a preface to a book, and his comments have gotten a little misinterpreted. Katie explains why the Higgs boson is absolutely not in any danger of destroying the world.
A study of Spinosaurus bones has determined the sail-backed dinosaur had adaptations to make it better suited to swimming than running. This study suggests that Spinosaurus may have been the only known swimming dinosaur. And plesiosaurs and icthyosaurs were technically not dinosaurs. Neither were pterodactyls. In fact Everything You Were Taught As a Child About Dinosaurs Is Wrong.
A very small number of people who get the flu vaccine still get the flu. And while there are a number of factors that could be responsible for this, a team of immunologists suggests one important factor could be the gut microbiome.
The standard medical advice for patients with back pain wanting to have sex is to try spooning. But the first ever scientific experiment on the matter has shown that advice could be very wrong.

Direct download: SoT_0162.mp3
Category:general -- posted at: 11:34am AEST

The Common Octopus, or Octopus Vulgaris, is the most studied of all octopus species. But all that studying has found so many differences between some, which could mean the Common Octopus is possibly as many as ten different species.
Why coffee has caffeine: An international team of scientists has sequenced the genome of Coffea canephora, one of the main sources of coffee beans. By analysing its genes, they were able to reconstruct how coffee evolved to make caffeine.
The availability of camera-phones and an increased mainstream interest in photography has led to the discovery of new insect species and behaviours. And the metadata stored with digital photographs provides a wealth of information for modern naturalists.
Engineers at Hong Kong Polytechnic University have created a fabric knitted with electronic circuits that can be worn, washed, stretched, and even shot!

Direct download: SoT_0161.mp3
Category:general -- posted at: 2:34pm AEST

Sean Elliott joins us to talk about the origins of life and his upcoming Melbourne Fringe show, Rough Science: Life.
Cobi Smith joins us from CERN to talk about her Melbourne Fringe show, Delusions of Slander.
The mystery of the ‘Wandering Stones’ of Death Valley may no longer be a mystery. Researchers have used video cameras, GPS units and a weather station to document and track how these large rocks move along the dry lake bed.
Researchers at the University of Ottawa have done a really cool experiment with bichirs – a kind of fish that has gills and lungs. Bichirs have been known on occasion to walk on land – although somewhat awkwardly. But these researcherswere looking into the evolution of walking limbs. Essentially how our ancestors first crawled out of the ocean and became land-dwellers
Russia’s infamous ‘space sex geckos’ did not survive their microgravity mating experiment. It is believed the heating equipment failed and the lizards froze to death.

Direct download: SoT_0160.mp3
Category:general -- posted at: 4:27pm AEST

About ten years ago an entomologist at the University of Colorado found 250 forgotten boxes in a storage cupboard. Inside were 13,000 grasshopper specimens collected more than 40 years ago, which provide a fascinating insight into climate and other environmental changes in that time.

A chance observation has led to the discovery that the blood of certain abalone has antiviral properties, which could lead to better treatments for the herpes simplex virus.

The vitamin K injection at birth helps prevent newborn babies from severe intestinal or cerebral bleeding. A small but growing number of parents are declining the shot, and the anti-vaccination movement seems largely to blame.

Drilling through 800m of ice has enabled scientists to find the first solid evidence on life in a subglacial lake. Yes, there’s bacteria there too.

Giant panda Ai Hin has possibly demonstrated a learned behaviour - she pretended to be pregnant in order to get special treatment!

Direct download: SoT_0159.mp3
Category:general -- posted at: 10:11pm AEST

Mother turtles and their newly hatched babies talk to each other underwater, and scientists in Brazil have managed to record them.

Taking antibiotics to kill ‘bad’ bacteria can be a good idea, but such disruptions to the gut microbiome can have long-term consequences for our health, and could even be making us fat.

The widely held belief that magpies steal shiny objects seems to be myth-busted. Instead, they seem to avoid new objects regardless of shininess.

Analysis of bones from King Richard the Third reveal that the last King of England to die in battle lived the good life. The samples indicate the King drank up to a bottle of wine each day.

Direct download: SoT_0158.mp3
Category:general -- posted at: 11:40pm AEST

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.
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 body. Nobody has ever seen it, and we didn’t even know about it until just recently.
Grizzly bears will eat an extraordinary amount of food before going into hibernation. In humans, this would be a recipe for diabetes but it isn’t for the bears. Turns out there’s a protein called PTEN that’s responsible – and the trick is reducing its expression only in fat cells.
What do you get when two scientists sequence their gut microbiome for a whole year? An amazingly detailed dataset that documents the changes our bodies go through during illness, travel and dietary changes.
Being strangled during sex might be unfortunate, but being eaten by your mate afterwards would also be weird. Another reason to be glad you’re not an octopus.

Direct download: SoT_0157.mp3
Category:general -- posted at: 1:52pm AEST

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 stacks up against the rest of the world - both in scientific accomplishments and in investment. She talks about ways to motivate scientists to engage with the public, and also how to encourage the public to take an interest in science. And she answers that burning question: just how much is Australian politics like going on a date with a homeopath?

Direct download: SoT_Special__014.mp3
Category:general -- posted at: 9:29pm AEST

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 electric bacteria - bacteria that eat and excrete electrons.

The Rosetta spacecraft is approaching its target, comet 67P/Churyumov-Gerasimenko, and its latest photos reveal the comet to be, well, rubber-duckie shaped. The comet could be two bodies joined together, and this could make the planned deployment of a lander a bit complicated.

A well-preserved, complete fossil skeleton of the largest known microraptorine - a flying non-avian dinosaur - has been found in China. Called Changyuraptor yangi, the dinosaur was about 1.3 metres long and weighed 4kg. And it had four wings!

Scientists at Dartmouth College are looking at a parasite commonly found in cat poo, Toxoplasma gondii, in an attempt to develop a cancer vaccine. When infected by 'Toxo', the human body produces cytotoxic T cells that cancer would normally shut down.

And what happens when you put snakes in microgravity? In the ultimate Snakes On A Plane experiment, scientists found snakes either attack themselves or tie themselves in knots.

Direct download: SoT_0156.mp3
Category:general -- posted at: 9:46pm AEST