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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

54:25

SoT 323: Very Small Frogs

Science On Top ·

2019/03/01

Hosts: Ed Brown, Penny Dumsday, Lucas Randall, Dr Cameron Webb 00:00:58 A review study published in the journal Biological Conservation has found that over 40% of insect species are threatened with extinction. 00:29:06 Queensland has seen record-breaking floods this year, and everyone knows that mosquitoes love water. But what do floods mean for mosquito-borne diseases? 00:36:10 By studying sleepless flies, scientists have identified a gene that puts them to sleep when they need it the most. And

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41:43

SoT 322: Captain's Log

Science On Top ·

2019/02/20

Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:01:48 When researchers from the Max Planck Institute were looking at the teeth of an 11th or 12th century German woman they found tiny bright blue specks. This was a clue that illuminated the role women may have played in the history of book production. 00:09:19 What if plants could be trained just like pet dogs? Spoiler alert: they can! Sort of. 00:12:12 Also, plants can hear you with their ear-flowers. 00:21:29 For spiders, their webs are also

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01:54

SoT Special: 2018 Bloopers and Outtakes

Science On Top ·

2019/02/11

2018 was a big year for science. Is saw the launch of the largest privately built reuseable rocket, the discovery a new organ, and understanding of the wombat's cubic poops. And we talked about all these stories and more on Science on Top. But not everything goes to plan, and this year was no exception! We had all sorts of Skype troubles, we forgot things, we were interrupted by dogs and phones… lots went wrong! But instead of losing the hilarious moments of chaos, we’ve saved them all for our

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36:43

SoT 321: Our Favourite Science Stories of 2018

Science On Top ·

2019/01/15

Hosts: Ed Brown, Penny Dumsday, Peter Miller 00:01:10 There's a planet orbiting star HD26965, exactly where Star Trek creator Gene Roddenberry said Spock's homeworld Vulcan would be. 00:04:16 A fresh analysis of 10 year old data finds the best evidence yet of water vapor venting from Jupiter's fourth largest moon, Europa. 00:05:17 Watch Peter Miller's artistic imagining of life on Europa here. 00:06:11 The oldest example of abstract art, from 73,000 years ago, resembles a hashtag. 00:10:14

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33:05

SoT 320: That's Not A Knife

Science On Top ·

2018/12/22

Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:01:24 The giant tortoise Lonesome George, the last of his species, was possibly as old as 102 when he died in 2012. Now sequencing of his DNA has revealed a number of genes that could give us clues about human life expectancy and particularly cancer. 00:08:10 Research into epilepsy has accidentally led to some exciting new developments in the treatment of depression and mood disorders. This is a serendipitous line of inquiry that came from

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01:13

SoT 319 error

Science On Top ·

2018/12/15

Our latest episode, 319 - Number Five Is Alive, had a pretty major glitch in that Lucas' track wasn't there at all. I realised the mistake shortly after posting it, and thought I had replaced it with the correct version, but obviously it didn't replace the file. I've re-uploaded it and tested it now, it definitely works! So if you had any trouble playing that episode - specifically if it sounds like Lucas is being rude and not talking - then you may have to re-download that file again. Or, you can

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56:37

SoT 319: Number Five Is Alive

Science On Top ·

2018/12/14

Hosts: Ed Brown, Penny Dumsday, Lucas Randall, Jo Benhamu 00:02:27 NASA's InSight probe lands on Mars, with a slew of instruments to analyse what the red planet is made of. 00:17:43 Against all conventional knowledge, mitochondrial DNA is sometimes inherited from the father. 00:28:01 Professor He Jiankui announced he's created the world's first ever gene edited babies using the CRISPR-Cas9 technique. His claims of HIV immune babies are extraordinary, but mired in contention amongst ethical and

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40:02

SoT 318: A Wacky Eukaryote Is Always Fun

Science On Top ·

2018/12/07

Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:01:10 Wombats - the cute, pudgy marsupials in Australia, have cubic poops. Square, angular blocks of poop. But how and why? We may now have a better understanding. 00:08:25 HD186302 is a star 184 light-years from Earth. And it's so similar to our sun, it could be long lost twin. 00:16:49 A team of researchers have studied the genomes of a group of microbes called Hemimastigotes and found that they are so bizarre, they deserve their very own kingdom

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33:25

SoT 317: Darknado

Science On Top ·

2018/12/03

Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:02:00 There's a stream of stars hurtling through our region of the Milky Way galaxy, and they're bringing with them a "dark matter hurricane". It's probably nothing to worry about, though. 00:12:16 For the first time since 1889, the kilogram has been redefined according to a natural constant, instead of a lump of metal in a vault in Paris. The actual mass, for all intents and purposes, remains the same. 00:23:51 Previous studies of Neanderthal

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39:46

SoT 316 - Venoms Are Amazing

Science On Top ·

2018/11/28

Hosts: Ed Brown, Penny Dumsday, Mick Vagg 00:02:13 How serious is the opioid crisis in Australia? What's being done about it, and what new painkillers are on the horizon? Pain Specialist Professor Mick Vagg gives us the run down. 00:22:15 20 million years ago, dolphins had really long snouts - the question is why? What evolutionary pressures led to their evolution, and what caused them to become extinct? 00:28:11 Are chimpanzees selfish? Do they readily cooperate? A study on chimpanzees in the

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27:24

SoT 315 - It's Just Gas, Dear

Science On Top ·

2018/11/23

Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:01:10 When a newborn baby smiles, there's always some spoilsport ready to tell you it's not a genuine smile, it's just a reflex. But new research finds that infant smiles are a lot more complex than that. 00:07:34 For the first time, astronomers have observed the clumps of gas orbiting the supermassive black hole in the center of our galaxy using four large telescopes linked together. The observations are in extremely high detail and reveal super

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33:11

SoT 314 - Sensitive New Age Gorillas

Science On Top ·

2018/11/15

Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:01:11 It's an old computer trick, but a gyroscope on the Hubble Space Telescope has been fixed - with a shake and a reboot. 00:08:22 The tiny worms in dung beetle brood sacks - which are sexually transmitted - are beneficial for the beetle larvae. 00:14:33 Polychlorinated biphenyls - better known as PCBs - are industrial chemicals that have been banned in most countries for decades. But their legacy remains and has dramatic consequences for orcas

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39:06

SoT 313: Live With Dr. Pamela Gay

Science On Top ·

2018/11/06

Hosts: Ed Brown, Penny Dumsday, Lucas Randall, Dr. Pamela Gay 00:00:58 What happens when octopuses are given ecstasy? They get... cuddly. 00:07:23 Gene Roddenberry got it right, there IS a planet orbiting the star 40 Eridani. That's where the Star Trek creator said the planet Vulcan would be, homeworld of the pointy-eared logicians. 00:10:23 The Japanese space agency, JAXA, has had a spacecraft orbiting the asteroid Ryugu since the end of June this year. It has now deployed three of its four

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38:38

SoT 312: Below The Spider Haemorrhage

Science On Top ·

2018/10/06

Hosts: Ed Brown, Jo Benhamu, Kirsten Banks. 00:03:03 Wiradjuri astronomer Kirsten Banks tells us all about Aboriginal astronomy - from emu eggs to moon halos. 00:13:20 The conventional wisdom that taking a low dose of aspirin every day can improve health and delay dementia in the elderly is unfounded for most people, according to the largest and most comprehensive clinical trial conducted in Australia. 00:25:44 Many infections in humans of antibiotic-resistant bacteria have been traced to the

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01:00:37

SoT 311: The 2018 Ig Nobel Prizes

Science On Top ·

2018/10/03

Hosts: Ed Brown, Penny Dumsday, Peter Miller, Ross Balch. 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 rollercoaster medicine to Voodoo in the workplace! You can watch the award ceremony here. 00:03:13 MEDICINE PRIZE went to two Americans, Marc Mitchell and David Wartinger, for using roller coaster rides to try to hasten the passage of kidney stones. 00:09:41 ANTHROPOLOGY PRIZE went to an international team for

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28:34

SoT 310: Faster Than Lightning

Science On Top ·

2018/09/26

Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:02:34 Archaeologists working in the Blombos Cave in South Africa have discovered what could be the world's oldest drawing - from 73,000 years ago. 00:10:40 Surfers have long believed that nearby dolphins are a good sign that there are no sharks around. But new research suggests that's not the case, as attacks on dolphins have increased in line with rising ocean temperatures. 00:19:33 The mirror test is an attempt to measure self-awareness in

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35:06

SoT 309: It's Not Surf 'n' Turf

Science On Top ·

2018/09/19

Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:02:22 The exciting family of planets less than 40 light years from Earth could each have 250 times more water than Earth, according to a new study. 00:11:09 Not just a meat-eater, the bonnethead shark is the first species of shark to be determined omnivorous. 00:17:49 Someone drilled a hole on the International Space Station. Was it sabotage? Space madness? We don't yet know. 00:26:35 As the planet-wide dust storm settles, the Opportunity rover

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37:17

SoT 308: The Universe Does Exist

Science On Top ·

2018/09/13

Hosts: Ed Brown, Penny Dumsday, Lucas Randall, Dr. Carolyn de Graaf 00:03:09 A large study has identified 35 genes that can influence you take up marijuana use. The study also also found links between those genes and other drug dependencies, as well as ADHD, autism and depression. 00:13:31 Scientists at Johns Hopkins Bloomberg School of Public Health has found that microorganisms in colder climates darken themselves to capture more heat and improve their chances for survival. 00:18:45 String

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50:50

SoT Special 25 – Dr. Morgan Cable

Science On Top ·

2018/08/31

Dr Morgan Cable is a planetary scientist and astrobiologist at NASA's Jet Propulsion Laboratory. Her work is primarily focussed on developing technologies and instruments for spacecraft searching for organic molecules and biomarkers in our solar system. She was the Assistant Project Science Systems Engineer for the Cassini Mission, and is currently working on numerous projects to Europa and Enceladus. Ed and Lucas caught up with Dr. Cable to discuss the exploration of the Saturn system, the Jupiter

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26:05

SoT 307: Honest, Dishonest, Or Delusional

Science On Top ·

2018/08/21

Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:00:56 We're hosting Dr. Pamela Gay for a talk, Q&A session and live show in Melbourne on Wednesday 10 October! Tickets $20 from scienceontop.com/live All proceeds go to the non-profit Astronomical Society of the Pacific. 00:02:06 A study finds that smaller dogs lift their legs higher when they pee. Could they be lying, and trying to fool other dogs? 00:09:30 After a delayed first attempt, NASA's Parker Solar Probe has been successfully launched on a

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390 results

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