Here's a little taste of the sort of thing to expect when Science on Top returns very soon - on hot days are you better off drinking hot or cold drinks?

Science On Top

SoT Bites 001 - Hot Drinks In Hot Weather

Have you missed us? Looking forward to another season of Science on Top? Here's something to whet your appetite - a story of cute cephalopods, curious scientists and 3D glasses!

SoT Bites 001 - Cuttlefish Watching 3D Movies

Hosts: Ed Brown, Penny Dumsday, Lucas Randall, Ass/Prof Mick Vagg 00:00:48 The switch to agricultural societies 12,000 years ago may have changed how we talk, introducing the 'f' and 'v' sounds. 00:04:58 The cane toad is an introduced pest in Australia, with no real natural predators. Until recently, when a small group of water rats learned how to eviscerate them with surgical precision! 00:06:38 The search for Planet Nine continued this year, and a new hypothesis was proposed: it might not be a planet, but a tiny primordial black hole. 00:11:28 The first ever image of a black hole's accretion disk was revealed this year. 00:15:30 NASA's InSight lander has been trying to drill a heat probe into the Martian surface, but it's been a heartbreaking story of progress and setbacks. 00:19:38 DNA testing has found that the same variety of grapes used 9,000 years ago to make wine are still being used today by some winemakers in France. 00:25:29 Researchers painted cows to look like zebras to find out if they were less likely to be bitten by flies. They were! 00:28:47 Scientists found that rats who had been taught to drive tiny electric cars were 'happier' and less stressed. 00:31:34 Australian scientists have developed an artificial intelligence algorithm that developed a new flu vaccine. 00:36:59 Some people can smell when other people have early stages of Parkinson's Disease. Thanks to the help of one of these “super-smellers", researchers were able to identify volatile compounds produced by sufferers. 00:40:39 A crater on Hawaii's Kilauea volcano has begun to fill up - but with water, not lava. Associate Professor Mick Vagg is a consultant in rehabilitation and pain medicine.

SoT 349: Our Favourite Science Stories of 2019

Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:00:56 As unprecedented bushfires ravage Australia, Forbes published an article declaring koalas are "functionally extinct". And while they do face considerable threats, the situation is not quite that dire. 00:11:38 Chinese scientists have discovered a black hole that, according to our current understanding of black-hole formation, is so large it shouldn’t exist. Called LB-1, the black hole has a mass 70 times that of our sun, three times more massive than previously thought possible. 00:25:11 Parked in space and deactivated since 2017, the LISA Pathfinder spacecraft has long finished it's scientific mission. But it's still making discoveries, detecting dozens of tiny impacts on the spacecraft and giving valuable data about cosmic dust. This episode contains traces of the cast and creators of The Expanse, now on Jeff Bezos' Amazon Prime, talking with engineers from Jeff Bezos' space company, Blue Origin.

SoT 348: Massive Stars Are Fluffy!

Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:01:24 For the first time, doctors at the University of Maryland School of Medicine have purposefully put at least one human patient in suspended animation. This could be a great help to surgeons dealing with traumatic emergencies such as gunshot or stab wounds. 00:10:06 The first geomorphologic map of Saturn's moon Titan has been released. Showing lakes (of liquid methane), dunes (of organic molecule particles) and exposed icy bedrock. 00:12:49 NASA’s Curiosity rover has been analysing the air above Mars’ Gale Crater and found unexpected, and fluctuating, levels of oxygen. 00:20:10 An international team of astronomers have announced the direct detection of water vapor in the atmosphere of Jupiter's fourth largest moon Europa for the first time. This is the strongest evidence yet that liquid water exists beneath the Europa's surface. 00:26:46 Molecular astrophysicist Clara Sousa-Silva has written an article in Scientific American calling for more research into the signatures of gases that could indicate the presence of life on other planets. 00:32:53 Palaeontologists in Argentina have excavated a number of nearly 100 million year old snake fossils. Interestingly, these snakes had hind legs, but not front legs. This episode contains traces of BBC One Breakfast hosts discussing an innovative technique used by the Russian Ministry of Agriculture to boost dairy production.

SoT 347: Carbonite

Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:01:23 Danuvius guggenmosi was a great ape that lived 11.6 million years ago in southern Germany and it has just been formally described in the journal Nature. But the really interesting thing about this discovery is what it could suggest about bipedalism - our ancestors were walking upright much earlier than previously thought. 00:10:19 Spaceflight is a dangerous endeavour. Astronauts risk muscle atrophy, bone weakness, cardiovascular issues, eyesight disorders, and a host of other ailments. But now, researchers have found another serious health risk: stagnant or backwards blood flow in the internal jugular vein. 00:19:16 Some people who don't like vegetables may have a genetic reason to avoid their greens. (But some people are also just fussy!) 00:25:52 Researchers in Sweden have created a molecule that they claim can trap solar energy and store it for decades. But there isn't a lot of information available about it. This episode contains traces of an ABC News report about a real life "Breaking Bad" situation.

SoT 346: Guinea Pig Guinea Pigs

Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:00:35 Researchers at the University of Richmond taught a group of 17 rats how to drive tiny little plastic cars. The rats found driving to be relaxing! 00:11:28 Why do we like music? It's a question that neuroscientists have wondered about for decades. A paper in the Journal of Neuroscience suggests it's related to learning. 00:18:37 Cows can not only recognise other cows, but they form friendships and bonds that don't align with the social hierarchy of the herd. 00:26:28 Ornithologists in the Amazon have recorded the world’s loudest bird. It's mating call can reach 125 decibels - louder than front row at a rock concert. This episode contains traces of the Have I Got News For You panel discussing the discovery of the world's loudest bird.

SoT 345: Daisy

Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:00:32 A zebra's stripes seem to reduce the number of flies that they attract, so what would happen if you painted a cow like a zebra? Japanese researchers did exactly that, and found a similar result. 00:08:10 An intriguing new hypothesis for Planet Nine is not a planet at all. Two astrophysicists have speculated it might actually be a very small black hole in our galaxy. 00:25:43 By analysing cut marks on bones left by humans between 200,000 and 400,000 years ago, archaeologists have determined that the bones were kept for later consumption. Weeks after the flesh of the animal was eaten, it's believed, the marrow in the bones was still nutritious. This episode contains traces of Boeing Communications' Jessica Landa and NASA Public Affairs' Dan Huot immediately after the successful Pad Abort Test of Boeing's Starliner Spacecraft.

SoT 344: Teeny-Tiny Black Holes

Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:00:34 Snails are a French delicacy that has led to the near extinction, and now revival, of tiny culturally and scientifically important snails in French Polynesia. 00:06:45 3.5 million years ago, something in our galaxy exploded. As more evidence comes in, it's looking like the black hole in the centre of the Milky Way gobbled up some young stars. 00:16:04 The scourge of cane toads continues to spread across Australia. But could a native rodent have learned how to slaughter and eat them? Yes, and they have. This episode contains traces of 12-year-old Tai Poole, host of popular podcast Tai Asks Why, talking with Natasha Mitchell about the importance of curiosity in school.

SoT 343: More Water Rats!

Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:00:29 A new hypothesis in the quest to explain the bizarre dimming patterns of Tabby's Star: could it be a moon getting shredded? 00:18:36 It's a belief that's been widely held since 1971: women who live together sync their periods together. But many attempts to replicate the original study have failed, so why is it still such a prevalent belief? 00:28:13 Take a computer algorithm, teach it to read scientific papers, feed it thousands of journals, and watch it predict future discoveries. This could be a new field of scientific endeavour. This episode contains traces of The President of the United States talking with astronauts Christina Koch and Jessica Meir while they participated in NASA's first ever all-female spacewalk.

SoT 342: Grumpy, Hungry, Wanting Chocolate

Hosts: Ed Brown, Penny Dumsday, Lucas Randall, Peter Miller 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 the benefits of pizza to the temperature of French postal packages! You can watch the award ceremony here. 00:01:16 MEDICINE PRIZE which was awarded to Silvano Gallus, for collecting evidence that pizza might protect against illness and death, if the pizza is made and eaten in Italy. 00:08:26 MEDICAL EDUCATION PRIZE was won by Karen Pryor and Theresa McKeon, for using a simple animal-training technique — called “clicker training” — to train surgeons to per[form orthopedic surgery. 00:13:54 BIOLOGY PRIZE went to a team with members from Singapore, China, Germany, Australia, Poland, USA, and Bulgaria for discovering that dead magnetized cockroaches behave differently than living magnetized cockroaches. 00:19:20 ANATOMY PRIZE was award to two Frenchmen for measuring scrotal temperature asymmetry in naked and clothed postmen in France. 00:24:11 CHEMISTRY PRIZE Went to a team from Japan, for estimating the total saliva volume produced per day by a typical five-year-old child. 00:27:30 ENGINEERING PRIZE was won by Iranian Iman Farahbakhsh, for inventing a diaper-changing machine [for use on human infants. 00:30:54 ECONOMICS PRIZE went to three researchers from Turkey, the Netherlands, and Germany for testing which country’s paper money is best at transmitting dangerous bacteria.. 00:36:42 PEACE PRIZE went to an international team of seven researchers, for trying to measure the pleasurability of scratching an itch. 00:40:40 PSYCHOLOGY PRIZE was awarded to German Fritz Strack, for discovering that holding a pen in one’s mouth makes one smile, which makes one happier — and for then discovering that it does not. 00:46:17 PHYSICS PRIZE was won by seven researchers from the USA, Taiwan, Australia, New Zealand, Sweden, and the UK for studying how, and why, wombats make cube-shaped poo.

SoT 341: The 2019 Ig Nobel Prizes

Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:00:33 The large holes in T-Rex's skull might not have been for muscles, but thermoregulating blood vessels according to a paper published in the Anatomical Record. 00:06:13 An Australian team has developed a flu vaccine they believe could be the first human drug to be completely designed by artificial intelligence. 00:18:49 A team at Howard Hughes Medical Institute is painstakingly building a detailed map of a mouse brain - one neuron at a time. This episode contains traces of Andrew Lund for 9News Australia, reporting on the naming of RRS Sir David Attenborough.  

SoT 340: They Look Snarly

Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:00:47 After a British teenager went blind, media reports came thick and fast about the dangers of a junk food diet. But was he just a fussy eater, or was there a lot more to it than the headlines suggested? 00:07:50 Is climate change making spiders more aggressive? Well, yes - but only one species was studied and not aggressive in way that you'd expect. 00:20:39 After a spectacular wall collapse last year, a crater on Hawaii's Kīlauea volcano was left empty. And now it's starting to refill, but not with lava. 00:27:31 Could the search for extra-terrestrial life be easier if the aliens glowed? Under the right circumstances, bioluminescence could help us find life on other worlds. This episode contains traces of KHON2 News' Brigette Namata and Justin Cruz discussing the teenager who went blind from junk food.

SoT 339: Sauce Is Key

Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:00:26 Tiny, often-overlooked "cryptobenthic" fish are much more plentiful than we realised, and could therefore explain how reefs can thrive despite a lack of nutrients. 00:08:30 Astronomers using NASA's Chandra X-ray Observatory data have been able to measure how fast five supermassive black holes are spinning. One was spinning faster than 70% of the speed of light! 00:17:26 A new analysis of skull fragments found in Greece is leading archaeologists to reassess how and when the earliest humans moved out of Africa, suggesting it could have been as far back as 210,000 years ago. 00:25:12 The media loves to proclaim the dangers of our obsession with smartphones, but there may actually be some evidence to support curbing our digital immersion. This episode contains traces of Rice University anthropologist Cymene Howe talking about a plaque commemorating Okjokull, the first Icelandic glacier lost to climate change.

SoT 338: Hidden Bottoms

Hosts: Ed Brown, Penny Dumsday, Lucas Randall, Jo Benhamu 00:00:26 A seemingly successful treatment of a nasty genetic disease would not have been possible without zebrafish. 00:10:52 It may seem counterintuitive, but a strain of virus linked to the common cold has been used to treat patients with a type of bladder cancer. 00:20:44 Fast Radio Bursts - the strong blasts of radio waves from distant galaxies - have mystified astronomers since they were first detected in 2007. But now for the first time, an FRB has been traced back to its host galaxy, 3.6 billion light years away! 00:33:39 Psychologists have conducted a large survey of nearly 2,000 volunteers to determine which animals and insects people are most afraid of, and most disgusted by. Perhaps unsurprisingly, it didn't go well for spiders. This episode contains traces of astronaut Buzz Aldrin talking about the meaning of the Apollo 11 moon landing.

SoT 337: Fear-Relevant Non-Slimy Small Animals

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.

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