Shirtloads of Science

Shirtloads of Science Podcast

Dr Karl’s a curious optimist – a great combination for a science lover. Join him and his guests for weird facts, amazing conversation and remember, it’s never too late for a happy childhood. https://drkarl.com/

When Black Holes collide with professor Geraint Lewis (205)
We are learning more about Black Holes with the latest detection Technology. Prof. Geraint Lewis tells Dr Karl about how we found black hole twins, how we know they are not identical and what it means for Einstein's predictions.  www.geraintflewis.com http://drkarl.com...

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The Universe has a Dark Side with Professor Geraint Lewis (204)
Dr Karl probes Professor Lewis on the latest on Dark Matter. Is it evenly spread ? Are there Dark Halos ? Galactic contact - fact or fiction ? Big questions with the best answers we have at the moment. (Trigger Warning - ep includes Dark Light)  www.geraintflewis.com drkarl.com...

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How Bent is our Universe ? with Dr Jessica Bloom (203)
An episode of colossal proportions on the shape of space. Your mind will be blown in multiple dimensions. Dr Jessica also explains to Dr Karl three ways  the Universe can end. (Trigger warning : none have a restaurant and donuts are mentioned many times)....

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Food for Health with Dr Nick Fuller (202)
Dr Karl visits Dr Nick for a health and diet check-up. In Covid times it is harder to stay in shape. Dr Fuller talks through the basics and what we can do to make healthy changes that last - whatever your age. Twitter: @drnickfuller Website: www.intervalweightloss.com.au More from Dr Nick include Fasting(164), Worst and Best(140), Salt(124), Fads(120), White Drinks(114 ) & Diet(86)...

Top Galactic Neighbourhoods with Prof. Geraint Lewis (201)
Are "Goldilocks" zones overrated ? Can the mediocrity principle be overturned ? What about outer Galactic suburbs - are they the place to be ? Dr Karl and Prof Lewis discuss interstellar Real Estate and the best places to live.   www.geraintflewis.com http://drkarl.com...

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Faster than Light with Prof. Geraint Lewis (200)
Speed limits are painful. So why is there a light speed limit on space travel (299,792km/s) ? Surely we can bend Einstein without breaking the Universe. Dr Karl (antigravity enthusiast) and Professor Geraint Lewis (real scientist) take it to the limit. How fast can we go ?...

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Black Hole Families with Dr Jessica Bloom (199)
Meet the Black Hole family. Dr Jessica Bloom takes Dr Karl through the three we've identified so far. So do they do more than suck ? Was Roger Penrose on the money when he suggested darkness as an energy source? The big questions are discussed in this second dark podcast....

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Black Hole Origins with Dr. Jessica Bloom (198)
Extraordinary discoveries are being made in the galactic darkness. Dr. Jessica Bloom assembles the historical, theoretical and observational data that are causing a rethink of black holes. Why are they at the astrophysical crossroads ?  And Dr Karl estimates our civilization's Kardashev ranking - how advanced are we ? Part 1 of a double black hole podcast. https://drkarl.com/   https://en.wikipedia.org/wiki/Kardashev_scale...

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Entropy with Prof Geraint Lewis (197)
Entropy comes from the Greek word for transformation. It is often used to describe the irreversible evening-out of stuff. In astronomy it is often called "the Heat death of the Universe". Entropy originated with the centuries-old laws of thermodynamics. So how is Entropy holding up? Dr Karl and professor Geraint Lewis put it to the test.  http://www.geraintflewis.com http://drkarl.com...

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Entropy with Prof Geraint Lewis (197)
Entropy comes from the Greek word for transformation. It is often used to describe the irreversible evening-out of stuff. In astronomy it is often called "the Heat death of the Universe". Entropy originated with the centuries-old laws of thermodynamics. So how is Entropy holding up? Dr Karl and professor Geraint Lewis put it to the test.  http://www.physics.usyd.edu.au/~gfl/ http://drkarl.com...

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Shuttle vs Soyuz vs Dragon - Rocket Science with professor Geraint Lewis (196)
2020 is a milestone in space travel. The International Space Station received astronauts from a privately owned mission. So how do the USA's shuttle, Russia's Soyuz and Musk's Dragon stack up ? Doctor Karl and Professor Geraint Lewis review the modern history of human space flight.      http://www.physics.usyd.edu.au/~gfl/ http://drkarl.com...

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How constant is the Hubble constant with professor Geraint Lewis (195)
Ninety years ago we first measured the rate of our expanding Universe. Today our accuracy is better but the new techniques are producing different numbers. Are there gremlins in our measurements or is it the Universe travelling in unexpected ways ?  Dr Karl and Prof Geraint Lewis discuss this huge question. http://www.physics.usyd.edu.au/~gfl/ http://drkarl.com...

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Fast Radio Bursts and Magnetars with professor Geraint Lewis (194)
First observed in 2007, FRBs are becoming a very useful astronomical tool. In 2020,  flashes were analysed and suggested an answer to that age-old question about the Universe. Most of it is unobserved - so where is it hiding ? Dr Karl and Prof Lewis take a walk through the FRBs and Magnetars, the new phenomena making headlines . Drkarl.com   https://theconversation.com/half-the-matter-in-the-universe-was-missing-we-found-it-hiding-in-the-cosmos-138569...

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The concept of Proof with Professor Geraint Lewis (193)
What does "proving" a theory  really mean ? Is there a difference between Scientifically proving or proving it Mathematically ? Dr Karl and Prof Geraint Lewis discuss the meanings of these ideas and how they are applied today. From pandemics to climate change, we depend on solid science - so how do you tell if something has been proved?  http://www.physics.usyd.edu.au/~gfl/ http://drkarl.com...

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Prof. Anita Ho-Baillie and Perovskite Solar Cells (192)
Solar PV Panels have transformed our energy mix in the 21st century. Efficiency is up and costs and carbon emissions are lower.  What next ? Imagine a solar film that squeezes 10% more out of the sun ? Professor Anita Ho-Baillie walks Dr Karl through solar PV and this phenomenal new approach. Barely 10 years in development, is there a Perovskite Solar efficiency race already ?...


Cosmic Rays with Dr Jessica Bloom (191)
They're Cosmic ... but are they Rays ? Dr Karl gets the briefing from a recent University of Sydney astrophysics graduate, Dr Jessica Bloom. Cosmic Rays were found ages ago and still baffling us with more questions. Dr Jessica and Dr Karl go to the ends of the earth on this cosmic quest.      https://drkarl.com/ https://www.facebook.com/astrokitten/photos/...

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Covid-19 - The Tests with Prof Eddie Holmes (190)
Lockdowns are a rational first response to a pandemic but what happens while we wait for a vaccine or treatment to be developed ? Dr Karl joins Prof Holmes in Part 3 of this series looking at Covid-19 tests. What is the difference between them ? Professor of Virology, Eddie Holmes also explains how our immune system fights a virus and why this one has been so hard to beat - so far. @EdwardCHolmes https://drkarl.com/ Note: episode recorded in late May 2020 using data available at the time...

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Covid-19 - The Numbers with Prof. Eddie Holmes (189)
Pandemics are complex so we rely on statistics to manage them. So how come the numbers vary so much around the world? Dr Karl asks Virology Professor Holmes why and also discovers which local factors also affect Covid-19 statistics.  Australia's secret national chook stockpile is revealed and Professor Holmes estimates the rubbery-ness of some well known figures. Note: episode recorded in late May 2020 using data available at the time. @EdwardCHolmes https://drkarl.com/...

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Covid-19 - Viral History withProf Eddie Holmes (188)
Virology and evolutionary biologist Professor Eddie Holmes takes Dr Karl time travelling to visit a deadly virus. Many of today's treatments took thousands of years to develop.  Smallpox proved to be a tough virus to manage but it also taught us how to fight back. From skin scratching to cows, the American Civil War, Baltic mummies and DNA -  Science finally stopped smallpox in its tracks.  @EdwardCHolmes https://drkarl.com/ Note: episode recorded in late May 2020 using data available at the time...

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Covid 19's chemical enemy (187)
A-Prof Alice Motion explores the chemistry and properties of the 29th element for Dr Karl.  This persistent contact killer is amazingly passive (nothing else is needed). We've known of its benefits for thousands of years and yet chrome, plastics and stainless steel prevail in our healthcare facilities. @all_isee @_breakinggood https://drkarl.com/...

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When Stars are born, they Shake (186)
Dr Simon Murphy explains to  Dr Karl the extraordinary behaviour of a star in the early stages of life.  Observed only recently, it widens our understanding of new stars.  https://www.sydney.edu.au/news-opinion/news/2020/03/10/astronomy-new-type-of-pulsating-star-discovered.html http://drkarl.com...

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The Great Attractor (185)
We can't see the Great Attractor but we've measured its presence. We're falling into Virgo and Virgo can't resist its force. Is Dark Energy involved? What is the "zone of avoidance"? Professor Geraint Lewis helps Dr Karl with his homework. http://www.physics.usyd.edu.au/~gfl/ http://drkarl.com...

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The Cosmic Revolutionary's Handbook (184)
Dr Karl & Prof G. Lewis discuss the gaps and guesses that string together our understanding of the Cosmos. So what happens if we find a mistake in one of Einstein's predictions ? It's one of the discussion points in Geraint Lewis' latest book written with Luke Barnes. https://www.booktopia.com.au/the-cosmic-revolutionary-s-handbook-luke-a-barnes/book/9781108486705.html drkarl.comhttp://www.physics.usyd.edu.au/~gfl/...

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Squeezing Stars with Prof Geraint Lewis part two (183)
It's part two of the Neutron star exploration with Professor G. Lewis. He takes Dr Karl layer by layer down to the core. Things are so squashed in there that quantum physics takes over. Escape from the lockdown inside a star where things go subatomic. http://www.physics.usyd.edu.au/~gfl/...

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Squeezing Stars with Prof Geraint Lewis part one (182)
What happens when you squeeze a star ?  Dr Karl gets inside one with Professor G. Lewis. They travel from the subatomic level up with the latest on Neutron Stars. Trigger Warning - Quarks and Bosons are mentioned . It's part one with more from the Neutrons next time.   http://www.physics.usyd.edu.au/~gfl/...

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Stellar tides with Prof Don Kurtz & Dr Simon Murphy (181)
To study the stars, look to the ocean. Water ebbs and flows under the influence of gravity. Astronomers see tides in moons, stars and around black holes. Dr Karl talks with two astrophysicists who recently measured a bulging star with earth-like tides....

A Perfect Poo with prof Claire Collins (180)
A perfect poo has metrics. Dr Clare and Dr Karl describe the best solid expressions. Length, thickness, mass and diet. What makes the perfect poop ?  https://theconversation.com/had-constipation-here-are-4-things-to-help-treat-it-123364...


Einstein, Newton & Frame Dragging with Prof Geraint Lewis (179)
Seventy-five percent can be described by Einstein. The remainder? It drove Albert to question his work till his dying day. Dr Karl and Dr Lewis discuss evidence for the missing theory .  http://www.physics.usyd.edu.au/~gfl/...

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3 doctors on Carbon, the Sun and Xenobots (178)
They're back ! Dr Karl on why carbon dioxide is so insidious in the atmosphere. Dr Alice Motion on the best Instagrams yet of our sun and Dr Jessica Bloom on the rise of bio-robots. The original shirtloads gangsters are in the lab....

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Dr Michael Mann (177)
American climatologist  Michael Mann drew a chart  back in 1999 .   It's called "The Hockey Stick Graph" because of the way it shoots up.  There was no new information in it and it drew on agreed international temperature data.  Like Charles Darwin, Dr Mann dared to publish. His "hockey stick" still makes him a target for fossil fuel lobbyists.  So what happens when a scientist is taken on by powerful interests ?  Dr Karl asks him about the experience....

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Dr Michael Mann (177)
American climatologist  Michael Mann drew a chart  back in 1999 .   It's called "The Hockey Stick Graph" because of the way it shoots up.  There was no new information in it and it drew on agreed international temperature data.  Like Charles Darwin, Dr Mann dared to publish. His "hockey stick" still makes him a target for fossil fuel lobbyists.  So what happens when a scientist is taken on by powerful interests ?  Dr Karl asks him about the experience....

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Hyper Velocity Stars with Prof Geraint Lewis (176)
One star, observed in outback Australia, may hold new clues to dark matter and black holes. It's a milky way neighbour but moving very fast. Prof Geraint Lewis takes Dr Karl on his quest for answers. http://www.physics.usyd.edu.au/~gfl/...

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Corey Tutt - NSW Young Australian (175)
The Young Australian of the Year Award recognises 16- to 30-year-old Australians. It rewards their achievements and contributions. Dr Karl meets Corey Tutt, the NSW winner for 2020. Corey has already made an extraordinary difference with his Deadly Science initiative....

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The Hubble Tension with Prof Geraint Lewis (174)
The Hubble Space Telescope launched in 1990. It is named after the American astronomer who found our universe was expanding. Ninety years on, with much better kit, Hubble’s ideas still hold. The question is how fast are we inflating? This is the Hubble tension and Prof Geraint Lewis leads Dr Karl through the deep space discussion. http://www.physics.usyd.edu.au/~gfl/...

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Cats & "Toxo" - from Kitty Litter to the eyeballs with Professor Justine Smith (173)
What is the science behind warning pregnant women to stay away from cat faeces ? It involves a parasite (called "Toxo" for short)  that migrates between humans and their cats. The risk to unborn children is real and world renowned expert, Professor Justine Smith, takes Dr Karl through the life cycle from Kitty Litter to the eyeballs.https://www.flinders.edu.au/people/justine.smith...

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Does Air Travel have a bigger footprint than clothing ? (172)
Camille Reed reveals the startling environmental and human cost of  fast fashion. From fiber to landfill the damage is colossal. She tells Dr Karl where the money goes and who misses out. Circular Fashion is Camille's response to the crisis.  She has simple and practical ways to make a change for the better.  https://www.australiancircularfashion.com.au/author/camille/ https://www.facebook.com/australiancircularfashion/...

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Ultra-Processed Foods and Drinks and the harm they do. (171) Rpt
A dietary study in Europe reveals a connection between processed foods (and drinks) and cancers. 8 years of research they tried to eliminate factors such as socioeconomic and diet preferences from the data but the link remains strong. What does it mean for you ? Doctor Karl and Professor Claire Collins discuss.  https://theconversation.com/research-check-will-eating-ultra-processed-foods-give-you-cancer-91984...

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Women who Measured the Stars with Dava Sobel (170) Rpt
Edwin Hubble is world famous for his discoveries. Henrietta Swan Leavitt is not. Henrietta was on a team that found a way to measure and classify the universe. They were employed as "human computers" (before the machines existed). Dava's book "The Glass Universe" refers to the half million glass slides Henrietta and other women used to document both the northern and southern skies. An inspiring story of collaboration and discovery....

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Walking After Eating with Kyra Sim (169) Rpt
Dr Kyra Sim treats takes Dr Karl through The benefits of exercise - after eating. @kyrasim...

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Ice Ages with Tas Van Ommen (168) Rpt
We are officially in an interglacial period - between ice ages. Dr Karl talks with Australian Glaciologist Dr Tas van Ommen about the times when Ice sheets were a kilometre thick. What caused them and how long did they last. Understanding our climate history is our best chance for anticipating its earth's future. Recorded in Antarctica...

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Shark spotting with drones (167) Rpt
Dr Karl and AI expert Dean Blumenstein from UTS Sydney discuss the application of drones being deployed on Australian beaches. Can deep learning improve on helicopter surveillance ? Could a drone save someone faster than lifeguards ? How safe in are we in the hands of AI ?...

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Australian Bird Bonding with Prof. Gisela Kaplan (166)
Guardian Australia's 2017 bird of the year was the Magpie. They are notorious for swooping and pecking bike riders so why are they so popular ? Dr Karl joins Prof Kaplan in the cradle of bird life. Australia saved the birds and some of the smartest ones are still here. https://www.panmacmillan.com.au/9781760554200/...

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Stand-up Mathematician, Matt Parker, on Monster Maths Mistakes (165)
When maths goes wrong in the real world , it can cost billions. Dr Karl quizzes Matt Parker on the mishaps with planes, bridges, drilling and PAC-MAN. From unboxing calculators for YouTube to why footballs should be donuts (if you believe the signs), this is Recreational Mathematics. A comedy of errors with some brilliantly told disaster stories. https://www.penguin.com.au/books/humble-pi-9780241360194...

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Fasting - Just another Fad ? Dr Nick Fuller investigates (164)
Dr Nick Fuller investigates the claims behind fasting diets and why today, most of us will end up where we started and feeling Hangry. He and Karl go through a recent study to show how deceptive it can be. It's not willpower that lets us down but something much deeper.  There are proven long-term plans - fasting is not one of them. Twitter: @drnickfuller Website: www.intervalweightloss.com.au...

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Greening the Reef to save the fish with Dr Daniela Ceccarelli (163)
Marine Biologist Dr. Daniela Ceccarelli has been studying the Great Barrier reef for around 20 years. She lives and works there and has uncovered some of the complex relationships between seaweed, algae, fish and coral. One of her surprising discoveries involves the humble Damsel fish. Dr Karl talks to her on Magnetic Island about her research and containing the damage that agricultural run-off and sea temperatures are having on reefs....

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Our most important Sex Organ with Dr Amee Baird (162)
What controls our sex life ? Dr Amee Baird has a tremendous insight into this. As a clinical neuropsychologist, she has studied many people whose sexual behaviour suddenly changed. It remains a taboo subject for many, and so she has written a book about what she has learned. Dr Karl spoke with Dr Amee Baird  in Sydney about her book "Sex in the Brain". https://newcastleneuropsych.com.au/dr-amee-baird/...

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Our most important Sex Organ with Dr Amee Baird (162)
What controls our sex life ? Dr Amee Baird has a tremendous insight into this. As a clinical neuropsychologist, she has studied many people whose sexual behaviour suddenly changed. It remains a taboo subject for many, and so she has written a book about what she has learned. Dr Karl spoke with Dr Amee Baird  in Sydney about her book "Sex in the Brain". https://newcastleneuropsych.com.au/dr-amee-baird/...

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Dr Karl's Random AR Road Trip with Dr Bernie (161)
Dr Bernie probes the Augmented Realities inside Dr Karl's new book. Are the 3D animations impressive ?  Do the walking, talking virtual Karls look amazing on her phone ? Is this the new frontier in science publishing ? https://drkarl.com/books/...

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Dr Karl's Random AR Road Trip with Dr Bernie (161)
Dr Bernie probes the Augmented Realities inside Dr Karl's new book. Are the 3D animations impressive ?  Do the walking, talking virtual Karls look amazing on her phone ? Is this the new frontier in science publishing ? https://drkarl.com/books/...

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The Thai Cave rescue with hero anaesthetist Dr Richard Harris (160)
2019's Australian of the Year Award was most unusual, shared between two extraordinary people - Veterinary Surgeon, Craig Challen and Anaesthetist Richard Harris. They were pivotal in the rescue of a Soccer team trapped in a cave deep in the mountains of Thailand. In this special 50-minute podcast Dr Richard Harris takes Dr Karl through that extraordinary cave rescue during the South-east Asian Monsoon. https://www.penguin.com.au/books/against-all-odds-9781760890957...

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Space Archaeology with Dr Alice Gorman (159)
Dr Alice Gorman is an internationally recognised leader in the emerging field of space archaeology. So how do you create a job like that?  It begins with rubbish. Dr Alice takes Dr Karl back to the fundamentals of preservation and how to sort space junk from the keepers.  @drspacejunk....

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Unboiling an Egg with Prof Colin Raston (158)
How do you un-boil an egg?  A Professor of Chemistry showed what was possible and won an Ig-Nobel Prize. It's all about the structure of proteins and how you fold them....

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Fire Tornados - How Jason Sharples used Maths to predict fire behaviour (157)
Firestorms attacked Australia's Capital City in 2003. Four people died. Dr Karl meets Prof Jason Sharples. His analysis has altered the world's understanding of fire. In certain conditions fires jump, dance and then go their own way . https://www.unsw.adfa.edu.au/our-people/associate-professor-jason-sharples https://en.wikipedia.org/wiki/Navier%E2%80%93Stokes_equations https://www.youtube.com/watch?v=5H1eVy6O3Fo https://en.wikipedia.org/wiki/2003_Canberra_bushfire...

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Fire Tornados - How Jason Sharples used Maths to predict fire behaviour (157)
Firestorms attacked Australia's Capital City in 2003. Four people died. Dr Karl meets Prof Jason Sharples. His analysis has altered the world's understanding of fire. In certain conditions fires jump, dance and then go their own way . https://www.unsw.adfa.edu.au/our-people/associate-professor-jason-sharples https://en.wikipedia.org/wiki/Navier%E2%80%93Stokes_equations https://www.youtube.com/watch?v=5H1eVy6O3Fo https://en.wikipedia.org/wiki/2003_Canberra_bushfire...

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What and where is Life? (156)
The discovery of a planet beyond our solar system was rewarded with a share of the 2019 Nobel Physics Prize. Thousands more exoplanets have since been discovered but is there life out there? Rocket propulsion Scientist Dr Rachel Brachman and astro-chemist Dr Michael Malaska join Dr Karl to scope how and where to start looking for signs of life beyond Earth.  https://solarsystem.nasa.gov/scientist-for-a-day/home/ https://eyes.nasa.gov/ https://projectpanoptes.org/ @WATSONpstar...

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What and where is Life? (156)
The discovery of a planet beyond our solar system was rewarded with a share of the 2019 Nobel Physics Prize. Thousands more exoplanets have since been discovered but is there life out there? Rocket propulsion Scientist Dr Rachel Brachman and astro-chemist Dr Michael Malaska join Dr Karl to scope how and where to start looking for signs of life beyond Earth.  https://solarsystem.nasa.gov/scientist-for-a-day/home/ https://eyes.nasa.gov/ https://projectpanoptes.org/ @WATSONpstar...

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Life Out There - the new science of Astrobiology (155)
2019's Nobel Physics prize was shared by three Astrophysicists: Jim Peebles for his Big Bang cosmology plus Michel Mayor and Didier Queloz for their discovery of exoplanets. To discover life out there, we need Astrobiologists. Rocket propulsion Scientist Dr Rachel Brachman and astro-chemist Dr Michael Malaska are turning their talents towards biology and the search for extra-terrestrial life....

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Vaccination Saves us - with Dr David Isaacs (154)
Polio, smallpox, measles, whooping cough - the list goes on.  Vaccination has saved more human lives than other treatments. Dr David gives Dr Karl the facts on our biggest medical miracle - training our immune system to fight deadly invaders....

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Sand Talk with Tyson Yunkaporta (153)
Dr Karl embraces Sand Talk. The first Australians have been exchanging complex concepts this way for 60,000 years. Climate Change and the nature of Time can both be discussed (in Sand Talk).Tyson Yunkaporta and Dr Karl share traditional wisdom and science. https://www.bookdepository.com/Sand-Talk-How-Indigenous-Thinking-Can-Save-World-Tyson-Yunkaporta/9781925773996...

Sand Talk with Tyson Yunkaporta (153)
Dr Karl embraces Sand Talk. The first Australians have been exchanging complex concepts this way for 60,000 years. Climate Change and the nature of Time can both be discussed (in Sand Talk).Tyson Yunkaporta and Dr Karl share traditional wisdom and science. https://www.bookdepository.com/Sand-Talk-How-Indigenous-Thinking-Can-Save-World-Tyson-Yunkaporta/9781925773996...


Space Operations with Dr Michelle Lucas (152)
Space Exploration needs teams of specialists on the ground. Dr Michelle Lucas has been in Space Operations most of her working life. Dr Karl discovers the joys of the detailed jobs that put astronauts in space....

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NASA Flight Director Matt Abbott (151)
July 2019 marked 50 years since the Apollo moon landing. Days later, Chris Kraft, a visionary behind Mission Control and Nasa's first flight director died aged 95. Dr Karl talks with Matt Abbott - a flight director for 40 shuttle missions. Matt worked on the ISS Robotic arm and is now fine-tuning mission control for the upcoming Orion missions - returning to the moon and beyond. @Aquarius_Flight...

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Kate Cole on protecting yourself from Silicosis (150)
Silicosis is a deadly lung condition. It is an occupational disease traditionally associated with stone masons and miners. Today new generations are at risk. From workers on infrastructure to home handy-persons cutting concrete, fine particles of silica can be inhaled without the right protection. Kate Cole tells Dr Karl how to stay safe....

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Kate Cole on protecting yourself from Silicosis (150)
Silicosis is a deadly lung condition. It is an occupational disease traditionally associated with stone masons and miners. Today new generations are at risk. From workers on infrastructure to home handy-persons cutting concrete, fine particles of silica can be inhaled without the right protection. Kate Cole tells Dr Karl how to stay safe....

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Kate Cole Silicosis Science and History (149)
Digging big holes is dangerous work. Silicosis is a cumulative and sometimes fatal disease resulting from breathing in certain types of dust from broken rocks. Kate Cole is Occupational Health and Hygiene Manager for the new Sydney Metro. She talks with Dr Karl about the history and science of dust diseases....

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Kate Cole Silicosis Science and History (149)
Digging big holes is dangerous work. Silicosis is a cumulative and sometimes fatal disease resulting from breathing in certain types of dust from broken rocks. Kate Cole is Occupational Health and Hygiene Manager for the new Sydney Metro. She talks with Dr Karl about the history and science of dust diseases....

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The Rust that Kills Breakfast (148)
Romans used Red Dog sacrifices but could not stop it. Decades ago Science slowed the red fungi with new strains of cereal crops. Food security is back in the headlines and the battle is not over according to Professor Robert Park. Winds continue to spread deadly spores that kill the wheat crops we rely on. [email protected]

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The Lancet diet with Dr Kyra Sim (147)
Dr Karl and Dr Sim work through a Diet that balances the needs of farmers, ecologists and your body to find a natural balance. The diet (published in the Lancet) is meant to challenge us towards a sustainable and healthy future....

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Autism is so diverse that researchers need a spectrum (146)
Dr Karl talks with University of Sydney researcher Marilena Demayo about the complex process of identifying and unravelling autism. @MMDeMayo...

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Eat your way to Happiness (145)
Research is showing that "Happy" meals are real. Not only do you feel better at the dinner table, those  feelings are long lasting. Also you can amplify the good effects by how you dine. Spoiler Alert - fast food is not the answer. http://healthyeatingquiz.com.au/...

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3 Doctors on Carbon, Black Holes and Car Keys (144)
How to make Graphene at home, how to visualise a Black Hole and the accidental Car Key immobiliser. Doctors Karl, Alice and Jessica with the latest....

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The Symbiology of Corals and how it might save them (143)
It's 20 years since our first modern Global Coral Bleaching event. Now they are regular, harder and faster. A deadly trio of climate change conditions are killing corals. Dr Emma Camp, a Marine Bio-geochemist, is at Ground Zero on Australia's Great Barrier Reef. She might have discovered some micro-biological interactions that could throw corals a lifeline.  @emmafcamp https://emmafcamp.com/...


Data Visualisation with Dr Emi Tanaka & Dr Karl (142)
Statistics are essential today.They are complicated and easy to misinterpret. Clearly communicated results can make a world of difference to new ideas. Dr Emi and Dr Karl discuss smart ways to reveal your data. http://soapboxscience.org/soapbox-science-2019-sydney/...

Happiness formula with Dr Lisa and Dr Karl (141)
Happiness can be measured. Today it is thought to be composed of 3 elements. Keep them in balance and you might feel a lot better. This podcast with Dr Karl and Dr Lisa might put a smile on your face. http://soapboxscience.org/soapbox-science-2019-sydney/...

The Worst (and Best) Diets of the year (140)
41 recent Diets have been ranked by US Health professionals. Dr Nick Fuller takes Dr Karl through the top and bottom of the chart. Is there a new Number One this year ?  Will it be the 5/2, Keto, Dash or Mind ? Before you start your next diet, listen to this Podcast.  Twitter: @drnickfuller Website: www.intervalweightloss.com.au...

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The Landfill that ate Cranbourne (139)
Dr Gavin Scherer tells Dr Karl of an Environmental catastrophe that engulfed a brand new Australian suburb. How did it happen? What did it take to fix? A blow by blow account of what it takes to undo decades of bad choices.  http://bit.ly/2JZqXmi...

PFAS, Will they be around forever ? (138)
The PFAS family of chemicals were Jet-Age wonders. Now some of them are biohazards that can cause cancer in high concentrations. PFAS are proving very hard to contain and break down. Dr Gavin Scherer has the job of finding them and making them safe. https://www.aecom.com/au/pfas/ https://www.epa.nsw.gov.au/...

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Walking after Eating may be very good for you (137)
Dr Kyra Sim treats takes Dr Karl through The benefits of exercise - after eating. @kyrasim...

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Eat more of these foods (136)
Tongue to tail, our bodies need this more than ever. The science is absolute - hearts, brains, bodies, guts - this works. It's affordable, tasty and we all need more of it. Bananas, popocorn and high cocoa dark cholocate ? Professor Claire and Dr Karl both have upped their fiber intake. http://healthyeatingquiz.com.au/...

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Drilling for Clues with Dr Tas van Ommen (134)
Geology reveals deep history. For recent history , 1 to 2 million years, glaciology has answers. The bubbles buried in ice in Antarctica are like a time machine for our atmosphere. Earth's Ice Ages are out of kilter and we need to know why. Dr Karl and Dr Tas van Ommen talk about the next 4 Antarctic summers of drilling required to discover what is really going on....


Our Ice Ages with Dr Tas van Ommen (133)
We are officially in an interglacial period - between ice ages. Dr Karl talks with Australian Glaciologist Dr Tas van Ommen about the times when Ice sheets were a kilometre thick. What caused them and how long did they last. Understanding earth's history is our best chance for anticipating its future....

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Insects, Cinema and Chemicals (132)
In the 60's the Green Revolution promised to feed the world. It succeeded with huge productivity gains, new products and profits. Now we are discovering a legacy. Plus More than 40% of this species are declining and a third are endangered. Plus does you body smell different while watching certain movies. Dr Alice Motion and Dr Karl discuss....

Wastewater Science with O3 (131)
Did you know the atmospheric layer that shields us can also clean dirty water ? Meet 3 MegaKennies. Scientists who know about ozone and how to use it.  Australia's largest music festival site produces a Megalitre of waste per day for a few weeks each year. They have a plant that ticks all the environmental boxes. Dr Jake O'Brien, Ben Kele and Guy Scott explain.   https://researchers.uq.edu.au/researcher/16984...


Antarctic Krill, Bubbles and Whales with Dr Gwen Fenton (130)
As the Christian world marks almost 2,000 years of Easter, Dr Karl searches for million-year-old air bubbles. The Chief Scientist for the Australian Antarctic Division, Dr Gwen Fenton, outlines why it will take 4 antarctic summers to drill for air that will answer fundamental questions about Climate Change, plus Krill and the fish that Dr Karl stopped eating.http://www.antarctica.gov.au/...

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Dean Ahern Antarctican Allrounder (129)
To operate at the earth's extremities you need a special skillset. Dean has been a professional chef,  mining machine operator and martial arts instructor. Dr Karl discovers how this produces rock solid members of our Antarctic support team. Dr Karl traveled south to Casey research station as part of the Australian Antarctic Program. @AusAntarctic...

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Prof Suzie and Jordan Digging in the Antarctic Dirt (128)
Antarctica has virgin soil which is frozen most of the year. Inside are some of the most hardy and unusual life forms including Tardigrades. RMIT Professor Suzie Reichman and PhD Student Jordan McCarthy are studying the local species and to trying to answer how they survive and how tolerant they are to human occupation. Dr Karl traveled south to Casey research station as part of the Australian Antarctic [email protected]_lab @AusAntarctic...

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Antarctic support with Sharon Labudda (127)
For every Scientist in Antarctica at least 5 support staff are needed. Dr Karl meets one of them. Sharon Labudda. She's in logistics but will turn her hand to fixing engines, carting supplies or getting scientists and their experiments done safely. Dr Karl also gets a lesson in how to speak Antarctican. What's a Yellow Hagg, the AAD, a Deezo or an FTL? Dr Karl traveled south to Casey research station as part of the Australian Antarctic Program. @AusAntarctic...

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How Antarctica is melting with Dr Ben Galton-Fenzi (126)
If you want to know how Global Warming works, ask a Glaciologist. Dr Karl talks with  Dr Ben Galton-Fenzi about his measurements on the Totten Glacier - one of the fastest flowing in Antarctica. His measurements, models and predictions are rewriting the timetable for ocean level rises. Dr Karl traveled south to Casey research station as part of the Australian Antarctic Program. @AusAntarctic...

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Dr Karl, Dr Alice and Antarctica (125)
Dr Karl gives Dr Alice a first hand report on Antarctica in February 2019. So how is climate change affecting the area ? Who are the scientists and what are Australians like living in our coldest territory ? Dr Karl traveled south to Casey research station as part of the Australian Antarctic Program @AusAntarctic...

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The Salty Truth with Dr Karl & Nick Fuller (124)
We all need Salt, but too much makes you sick. Too much for too long kills you. So how much is enough and which foods have it ? Dr Nick busts FIVE common Myths to help you toward a simple lower-salt lifestyle plan. Feel  better and you're likely to lose some weight. Twitter: @drnickfuller Website: www.intervalweightloss.com.au...

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Damien Manuel on CyberWar (123)
Dr Karl probes Damien Manuel from Deakin University on the foundations of modern Cyber warfare. From Stuxnet to Brexit, Trump16 and IIWAM, our Digital space is being warped and manipulated. Part 2 on Dr Karl's 2019 Cybersecurity podcast....

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Damien Manuel on spotting Cyber Warriors (122)
Dr Karl probes the Director for Centre for Cyber Security Solutions, Damien Manuel, on digital safety. Smartphones, Digital health records, Credit Cards, Huawei and the most common types of cyber warriors. Update your shields in 2019 because smart refrigerators can launch DDOS attacks. Karl and Damien discuss the telltale signs and what to do....

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Saving lives with a drop of Blood Plasma (121)
Dr Karl meets Daniel Alexander. Daniel donates blood plasma every second week. Find out how his particular blood can save the lives of babies. His body chemistry is rare and he's one of oly 150 Australians currently supporting this vital program. Blood is central to life and our immune system. Donating in Australia https://www.donateblood.com.au/...

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Not-so-super Foods- Dr Nick Fuller & Fads that Fail (120)
Imagine something that would undo all the bad stuff you put in your mouth. Now that would be a Super Food. Superfoods do not exist and Dr Nick Fuller takes Dr Karl through recent claims.  Twitter: @drnickfuller Website: www.intervalweightloss.com.au...

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Spotting sharks with drones - Dr Karl & AI expert Dean Blumenstein (119)
Dr Karl and AI expert Dean Blumenstein from UTS Sydney discuss the application of drones being deployed on Australian beaches this summer. Can deep learning improve on helicopter surveillance ? Can a drone save someone from drowning faster than lifeguards ? How safe in are we in the hands of AI ?...

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Deep Neural Networks - The growth of Artificial Intelligence (118)
Two decades in and the 21st century being swarmed by digital services - both wanted and unwanted. Dr Karl discusses how we've got here - and where we're going with AI expert, Dean Blumenstein from UTS Sydney. When deep neural networks have lifetimes of human learning inside, Are we heading towards a safer space ?...

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Science Olympics ? They exist ! (117)
Meet Rebecca Whittle, an Australian Teenage Gold medallist in the 2018 Science Olympics. Rebecca was part of a four-member team representing us at the International Earth Science Olympiad. While sports dominate media, it is brain power that will provide for our future. Discover more and the games set for Adelaide in 2019. asi.edu.au amt.edu.au https://www.facebook.com/AustralianScienceOlympiads...

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The Antarctic Treaty and Space Law (116)
An aspiring space diplomat tries to determine space law using the Antarctic Treaty. Both were set in the Cold War but the times have changed. Compare and contrast with Dr Karl and Annie....

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Annie Handmer - Australia's first Space Diplomat (115)
In the next decade, specialist jobs will be created for the first time. Annie Handmer is ahead of the game as a "Space Diplomat". If junk from the sky kills your satellite or pollutes your land then space law applies. You need representation but who to call ? Discover how innovation and passion fuel a fresh generation of innovators....

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White Drink Scams . Dr Nick Fuller lifts the lids with Dr Karl (114 )
A whole new drink category has sprung up in your supermarket. The Labels say "Milk" - but what's really inside ? On the internet you'll find all kinds of nice things being said, but some of these products have hidden health hazards - like loss of bone mass, weight gain and bad cholesterol buildup. Some are just lousy value for money. Dr Nick lists the healthy and economical choices for every diet. Twitter: @drnickfuller Website: www.intervalweightloss.com.au...

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Ultimate organic cleaner, Enzymes & Mongolia (113)
Is the ultimate cleaning compound a human byproduct ? What if Evolution was part of an experiment ?  Can a Virus kill Bacteria ? Plus Dr Karl reports on his recent visit to Mongolia....

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Highlights from the Ignobel & Nobel prizes (112)
Dr Karl & Dr Alice bring you some of 2018's remarkable innovations. A process that transformed manufacturing and surgery, the "Deborah" Number and why a team of researchers went to a Post Office to investigate Male Erectile Disfunction.  https://twitter.com/DoctorKarl...

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Guidelines for relief of Lower Back Pain (111)
7% of the listeners to this podcast will be affected by attacks of lower back pain. For both men and women it is a debilitating condition. Worse still, some prescriptions result in death. Professor Chris Maher challenged orthodoxy in a 2018 Lancet article with a set of treatment guidelines. Dr Karl helps decode the article for you. https://www.nps.org.au/ http://sydney.edu.au/medicine/people/academics/profiles/christopher.maher.php...

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The day Ergonomics took a dive with Prof Chris Maher (110)
You are qualified and experienced. An invitation comes to speak at an international conference. Your research questions 30+ years of practice. Which path do you choose ? You know most of your audience will walk away disappointed. If you're Prof Chris Maher you follow both the Scientific Method and Hippocratic Oath. Is it evidence based ? Is it subject to independent testing ? Does the practice harm patients ? That day Ergonometrists walked away unhappy but it was a victory for patients in pain. Dr Karl and ...

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The Chemistry and Science of Eating (109)
Obesity, Diabetes and Heart Disease are ruining the lives of otherwise healthy people. Many of us are at risk through uninformed choices. Doctor Karl consults dietitian Dr Kyra Sim and analytical chemist Dr Yvette D'Entremont for the latest. Did you know your lungs play a huge role in weight management ?...

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How does a maths teacher become an Australian Local Hero ? Meet Mr Woo (108)
Eddie Woo is Head Teacher Mathematics at a government high school in Sydney, Australia - and a whole lot more. He is someone with a gift for teaching and is now internationally regarded for the lessons he posts online with his woo tube channel. https://misterwootube.com/...

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Meet Astro Kirsten with 60,000 years of stargazing experience (107)
Kirsten Banks recently graduated from Sydney University. She has a deep passion for space and astronomy and writes on her twitter page "I won't be the next Brian Cox, I will be the first Kirsten Banks! Proud Wiradjuri woman ". Discover an entirely different view of the heavens from an Indigenous Australian. https://twitter.com/astrokirsten?lang=en...

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Artificial Intelligence and the people problem (106)
A.I. is already surrounding us. The internet, cars, courts, recruitment agencies. Already serious issues are surfacing. For instance removing prejudice is proving very difficult. The data sets we train our devices with are imprinting our own society back into the system. Author Ellen Broad leads Dr Karl inside the machine with her book "Made by Humans : The AI Condition". https://www.mup.com.au/books/made-by-humans-electronic-book-text...

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The future of Everything with Tim Dunlop (105)
Inequality. How dangerous is it ? Are our democracies fair ? Author Tim Dunlop says even the Ancient Greeks didn't trust their democracy to popularity contests.  They recognised human weakness and used alternatives. Tim also has a convincing explanation of how privatisation fails and why hope exists. Dr Karl and the future of everything with Tim Dunlop. https://www.newsouthbooks.com.au/books/future-everything/...

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How to illuminate your big idea (104)
Dr. Katerina Kimmorley co-founded Pollinate Energy, a solar startup,  in Bangalore India. She's since helped expand that business to three more cities, cutting carbon and transforming lives. What drove her from Sydney to the the London School of Economics and the Clean Energy Finance Corporation ? Dr. Kimmorley tells Dr Karl - (and is at the Sydney Spark statup festival). https://www.eventbrite.com.au/e/the-role-of-women-entrepreneurs-in-tackling-climate-change-tickets-49158532494 http://sparkfestival.co/...

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Bill Bailey & Dr Karl on the Ascent of US (103)
Two Polymaths share stories from the past few Millennia.  Bill reveals his DNA profile and links to European History. Karl on Empires and psychopaths. Who said the week should be 7 days long ? How Unready was Ethelred ? Many of Bill Baileys tour dates are sold out. Dr Karl had Laryngitis at the time of recording and has recovered....

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Quantum Computing and the The Slow Giants (102)
Prof Patrick Hayden from Stanford Uni continues his talk with Dr Karl on Quantum Supercomputers. Many of the experiments being tried are based on confirmations of Astrophysical theories. It's where Macro meets Micro. We are approaching the limits of binary and a leading physicist gives some bold guestimates of how soon and where we will see the first Quantum applications....

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Quantum Supercomputing (101)
Prof Hayden from Stanford Uni briefs Dr Karl on the next generation of computing. Prof Hayden from Stanford Uni briefs Dr Karl on the next generation of computing. As we approach the limits of Silicon, new ideas are being tried and tested. As with the mid 20th Century transistor, the next step is in the hands of Physicists - and they say the supercomputer for the 21st century will be Quantum. So what does that mean ?...

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When Galaxies Collide (100)
30 minutes with Dr Karl and prof Lisa Harvey-Smith will turn your head around. What is our place in the Universe? Recorded live at a function for prof Lisa's "When Galaxies collide" book this is a roller coaster ride through physics, chemistry and our stellar heritage. Where was the gold in wedding rings made ?  https://lisaharveysmith.com/...

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The 300 million year old Killer we are still learning about (99)
They're 300 million years old. They're almost invisible and they are deadly. Cubozoa, Box jellyfish or Irukandji, are both the smallest and the most venomous jellyfish in the world. There are more than 50 species and Dr Karl joins Lisa-ann Gershwin on her hunt for more. When Box jellyfish fire their stingers, the pain and other symptoms are collectively known as Irukandji syndrome and it can kill. But something as thin as pantyhose can save your life - how does that work ? http://lisagershwin.com...

Fight Fat with Science (98)
95% of Diets fail & Dr Fuller knows why. It's not only what you eat but how and when. He takes Dr Karl on a neuronal , hormonal and intestinal journey plus he latest science on maintaining a healthy balance. We are hardwired for hard times and so it takes smarts to beat the snacks that pump us up.  www.intervalweightloss.com.au...

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Science Degrees - What are they Good For ?
What careers open up for Physics graduates? What if you add a PhD in Chemistry? Meet Sydney University graduate Dr Michelle Deaker talking with Dr Karl about her journey. She started with some entrepreneurial spirit and then added an eye for opportunity. Dr Michelle turns research and ideas into products and then takes them to market. Her Australian venture capital portfolio includes a world-leading vaccine Nanopatch, a watch for tracking dementia patients and a new diagnostic in oncology.  Got a new idea f...

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Longitude - Our gateway to the fourth dimension (96)
Longitude was maritime history’s greatest scientific breakthrough. Dr Karl discovers why  with Kevin Sumption and James Hunter from the Australian National Maritime Museum in Sydney. What connects Lieutenant James Cook to the early computers ? Extraordinary nautical tables and accurate clocks. From these innovations space exploration was possible. (from 2016)...

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Laughter is Infectious - How can we use it for good ? (95)
International Public Health Workers witness human tragedies daily. Sometimes they get sick too. Alanta Colley has many tales to tell of years abroad. She talks of the parasites she's been infected with,  parasites she's seen and even more she's read about. Does Tragedy + Time = Comedy ? Dr Karl & Dr Alice test the formula....

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Avian Intelligence with Professor Gisela Kaplan (94)
The original "AI" could be Avian - and from Australia. Professor  Gisela Kaplan with Dr Karl of her research on why Australian birds are smarter than their Northern cousins. NOTE = Professor Kaplan is highly qualified with vast experience treating wild birds. Do NOT attempt her methods at home. The talons of birds of prey can result in serious injury....

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In a changing climate, what is native ? (93)
Since European settlement in Australia, the ecology has been continuously disrupted as species have been moved. Naturalist Tim Low is interested because some species have thrived while others have have failed. Kookaburras, snakes, Redback Spiders and flying foxes. What can we learn from them in a changing climate ?...

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Ultra-Processed Foods and Drinks - what harm can they do ? (92)
A dietary study in Europe reveals a connection between processed foods (and drinks) and cancers. 8 years of research they tried to eliminate factors such as socioeconomic and diet preferences from the data but the link remains strong. What does it mean for you ? Doctor Karl and Professor Claire Collins discuss.  https://theconversation.com/research-check-will-eating-ultra-processed-foods-give-you-cancer-91984...

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What is Real ? (91)
Three Cases cracked by Three Doctors. From Floppy Hats, to Firebirds, The Dark Knight and the Broken Escalator Phenomenon. Doctor Karl is joined by Alice and Jessica as the explore the science behind three observed phenomena. The fire carrying birds of Northern Australia, the dark orbiter that will not die and why people brace themselves when there is no apparent danger. (from 2017)...

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Why Great physics is Messy with Dr Helen Czerski (90)
Dr Karl and Dr Helen - talking about .World's longest echo, how to photograph the molecules inside an explosion, Oceans, Coffee rings and climate change. Physics today is "messy" and "complex" and she loves it. (from 2017)...

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The "E" in STEM - Dr Karl & Dr Kanga talk Engineering (89)
Meet Dr. Marlene Kanga, president of an international governing body looking after 2 million engineers. Our future depends on innovation. The creative application process is what Engineering is all about. She talks with Dr Karl of the value Engineers bring to society, which areas attract female engineers, and what Australia can do to catch up with other leading nations....

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Randomistas - they've won wars, healed the sick and helped us learn (88)
They have won wars, healed the sick, saved us money, helped us spend money and helped us learn. We have been running Randomised Trials for more than 200 years in medicine, business and government. There is no simpler or more powerful tool for finding out what works. Hear how radical researchers have overturned conventional wisdom time and again with a simple test....

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Dark Matter Quest (87)
So you want to solve the Dark Energy conundrum ? Then you need to be patient. It'll be clumpy, relativistic and you'll be seeing double at times.  It will take you to Chile and Germany. Dr Karl explores Dr Lewis's quest for a universal holy grail....

DIET is a 4 Letter word - but it doesn't have to be (86)
95 % of diets fail. By middle age you will try over 60 diets and 19 times out of 20 you will not lose weight. Australia is now the 5th fattest nation on earth (ahead of the UK). Join Dr Karl & Dr Fuller from Sydney University and a plan that is friendly to the human condition . Fad diets will fail. On average we will spend more than 30 years on diets during our lifetime. With a $60 billion weight loss industry, do they really want you succeed? www.intervalweightloss.com.au...


Galactic Archaeology (85)
Prof Geraint Lewis takes you back to the birth of our stars. He uses Optic fibres, Robotic observations, Grisms, Hermes and Galah. It all happens at the AAT using 2DF. All these terms are explained wonderfully. This is the art of looking at what's not there. (Warning this podcast may contain Backronyms)....

How to get a PhD in Whale Watching ? (84)
Meet one hardworking Sydney Uni student, Vanessa Pirotta. She works with a boat and a drone. Off Sydney (and in Antarctic waters) she has developed a health profile of migrating whales without touching them. Whales have a 12 month gestation cycle. They synchronise with the seasons. From the tropics to the roaring 40's marine mammals have a story we must listen to....

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Top 10 researcher in the World (83)
When Nature magazine published the top 10 researchers of 2017 there was one Australian. A radio astronomer ? no.  A paleontologist? no. She is a professor of Molecular Oncology working with the "the Post-Truth Initiative". Doctor Karl interviews our world leading researcher on how she beat fake science. "Seek and Blast" is the software she helped develop in her spare time. An uplifting story on beating the cheats....

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The Aussie Space Program - it's Hypersonic (82)
Hypersonic space injection is different. It's fast like a Kangaroo, Air breathing like a lungfish and reusable like a keepcup. UQ's Professor Michael Smart takes Dr Karl through an Australian development that could jumpstart the space program downunder. It has been part of a research program spanning 30 years and Hypersonics could be ready to fly in 5 years says Professor Michael - (with an injection of money)....

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Dangerous Diet Supplements (81)
Dr Karl and Dietetics Professor Claire Collins measure popular weight-loss supplements against the scientific literature. She finds one supplement you could easily overdose on. She finds another that has only ever worked in Japan. How much actual evidence is there ? Save your money and Listen. Proven and affordable solutions are here....

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Synaesthesia - What is the fragrance of a slamming door (80) ?
Dr. Karl gets a synaesthetic diagnosis for his night-time flashes. To fully understand he will need to learn new concepts like "Graphemes", "Prosody" and  "Multi-modal Cortices". 4% of humans are synaesthetic  according to recent surveys. Are you one too ? Listen in and take the test. Fridge Magnets and Children's TV could have life-long effects and it may explain the phenomenon of Auras....

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Phone Porting - a new form of fraud (79)
Thieves are getting smarter so Home and Car thefts are decreasing. Now mobile phones are being targeted.  Crooks don't want your handset. There is something far more lucrative if they can get it - your authenticated digital identity. Dr Karl talks with a fraud detective about how this can happen, the telltale signs of when it is happening to you and what to do. Phone Porting is one of the new forms of fraud. We have simple practical advice from experts to keep you safe....

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Stealthy Critters (78)
Infrared Invisibility from Polar Bears, Secret Elephant Sounds and Tentacle Camouflage....

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Superheavy Elements pt 2 (77)
Before the Space Race there was a race to find and name new elements. Atom smashers and reactors were the tools to make new super-heavy metals - unknown on earth. Who leaked the announcement of two new radioactive elements on a Children's Quiz show ? Transfermium wars - What were they ? Who died getting Einsteinium ? Chemistry World journalist and author, Kit Chapman, tells Dr Karl about the people behind the unpronounceable names with big atomic numbers at the bottom of the table and the race that is still...

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Superheavy Elements pt 1 (76)
Before the Space Race began there was a chemistry race - the hunt for new elements. The Russians may have organised the periodic table but it was the Americans that began filling in the blanks. These heavy elements could not be found in nature, you had to create them in cyclotrons and reactors. Chemistry World journalist and author, Kit Chapman, tells Dr Karl about the people behind the 20 or so unpronounceable names at the bottom of the table. In this podcast we count up from atomic number 93. Who wrote a ...

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Skinny Tea - Is it Real ? (75)
Lose weight by drinking special Tea - that sounds easy... but is it good ? Dietetics professor Clare Collins, takes Dr Karl through seven Botanical tinctures that make this claim. Snake Oil or Science ?   http://theconversation.com/science-or-snake-oil-do-skinny-teas-boost-weight-loss-87353 https://www.newcastle.edu.au/online-learning/moocs/the-science-of-weight-loss...

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The Dark Side of the Universe with Prof James Green (74)
The stars at night are only a fraction of what we know should be there. So where are all those missing bits from our universe? This is a lifelong quest for Professor James Green from Colorado University in Boulder. Since his student days, he has been designing payloads for NASA rockets (and the Hubble space telescope) looking at invisible stuff. So how do you see in the cold black soup of space? What is a Sounding Rocket?  Why do Wimps beat Macho's ? These and many more questions are answered in Dr Karl's l...

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BioHacking pt 2 (73)
What would a biohacked future look like ? What would stop Supervillians creating seceret labs ?  Who polices the Cyborgs ? What is the controversial 5th pillar of biohacking ? Doctor Karl and Australia's most famous biohacker discuss....

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BioHacking pt 1 (72)
Imagine visiting a doctor in the not too distant future. Afterwards she sends off data to a local gene lab to give your body a small upgrade. This is the world of biohacking. A place where biololgy is being controlled and shaped to our will - just like we have mastered computers. This episode bounces from In-Vivo to In-Silico and back again, visits the Last Universal Common Ancestor and involves a real human cyborg. Doctor Karl and Mr Meow Meow (Australia's most famous biohacker) explain this brave new worl...

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The Source of Life, Fish and podcasts (71)
Doctor Alice on Interstellar Chemistry. Doctor Karl answers the vital question "Do Fish Drink?". Dr Almost Jessica on where it is best to listen to podcasts.  A Deep edition. The Shirtloads podcast Team back for 2018....

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Balancing your Diet (70)
Doctor Karl takes the Healthy Eating Quiz followed by a dietary checkup with Professor Claire Collins. Have you tried being Flexetarian ? 24 minutes of simple, healthy, free and inspiring suggestions. For maximum effect take the quiz before the podcast and compare your score with the Doctors.  healthyeatingquiz.com.au...

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What is Real ? (69)
From Floppy Hats, to Firebirds, The Dark Knight and the Broken Escalator Phenomenon. Doctor Karl is joined by Alice and Jessica as the explore the science behind three observed phenomena. The fire carrying birds of Northern Australia, the dark orbiter that will not die and why people brace themselves when there is no apparent danger....

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Understanding Econobabble (68)
Econobabble is an invented language that deliberately obscures what you think words describe. Words like "unemployment" and "subsidy" are simple at first glance. Wait till you find out what they really mean ! Are you wasting your time looking for certain jobs, investing your savings in the wrong place or voting against you best interests? Are your definitions up to date? 1962, William S. Burroughs suggested that language could be a virus in his book "The Ticket That Exploded". This 30 minute podcast might b...

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Secret Astronomy - Tara Murphy and the explosive discoveries of 2017 (67)
August 17 2017 will go down in in Astrophysics history . A LIGO event triggered a 50 telescope 24 hour 360 degree operation which yielded astronomy gold.  Prof Tara Murphy was at ground zero when the results came in but she would have to be patient for the ripples to show up on Australian Radio Telescopes. In the data was the solution to a Cold war mystery. A compelling first hand account of a new frontier of discovery....

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Euthenasia - Our moral and ethical dilemma (66)
If every death was a good death, then euthenasia would be widespread. Today most countries ban it. Why? Professor Linda Shields has unearthed some of the reasons and they are within living memory. She is a Professor of Rural Health and has written of an under-reported genocide.  One-third of a million disabled people (adults and children, male and female, physical and intellectual)  were killed during the Nazi regime and the people who did that killing were nurses. Her book is Nurses and Midwives in Nazi Ge...

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The Ins and Outs of the Ketogenic Diet (65)
Dietitian, Care Collins gives Dr Karl a full 360 on a diet that is getting researchers pumped up. Imagine a menu that stimulated the blood brain barrier, made you think you were full early and might starve cancer cells. Sounds good but there are dangerous side effects in the long term. Ketogenic is a medical diet, is difficult to stick with and may actually have no long term weight loss benefits....

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The Mulder and Sculley of Food (64)
We are what we eat. Organic, low fat, pesticide-free, High Fibre ; Consumers pay extra for foods with health benefits like these. But when food is packaged, how do you know what is really inside ? Welcome to the world of Food Fraud. This Shirtloads podcast stars two British Scientists who have investigated and written about it in their book "Sorting the Beef from the Bull". Bio-Geo-Chemist Richard Evershead and Biologist Nicola Temple expose food criminals with forensic science. (first podcast in 2017)...

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Marine Biology Adventures (with Dr. Helen Scales) (63)
Marine biologist, diver and author Dr Helen Scales takes Dr Karl deep beneath the waves to share her passion for the ocean. Helen talks about the secret life of molluscs (shellfish). Hear about ‘clacking’ oysters, the legend of the Golden Fleece (sea silk) and a creature resembling a pinecone crossbred with a slug. There’s maths in the spirals, slave trading in the cowrie and just imagine a Harry Potter golden snitch of the sea… it’s real and plays an incredibly important role....

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It's Summer (in the southern hemisphere) What time should you Water your plants ? (62)
Dr Karl and Dr Alice put their heads together to discuss the latest research into hairy leaves and burning plants?  Dr Karl’s amazing fruit and veggie classification system. What do killer kangaroos have to do with sleeping in an unfamiliar bed? And, if you talk to dogs (like Dr Alice does) there’s an experiment you might just want to try. Listen up as two Doctors tackle these and more. (First Podcast in 2016)...

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The Return of the Worm in Medicine (61)
Dr Michael has found some fascinating new applications and treatments using worms. From gut health, treating Coeliac disease and healing chronic wounds - there's relief to be found in our tubular friends. Join Dr Karl with Dr Michael Smout (from the Australian Institute of Tropical Health & Medicine) at James Cook University. If words like bile, kilodaltons and cysts put you off - stick with this - it's an uplifting tale of research that could make us feel a lot better....

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How to save the world in 20 minutes (60)
Dr Karl takes up the challenge of saving the world . Joining him are fellow doctors Derek Muller and Petr Lebedev. All three are in the Science communication business. So how do we convince the world to act on climate change ?...

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Madagascar with Dr Karl (59)
The people of Madagascar have fascinating stories. Did you know the first settlers came from South East Asia ?  That some of their traditions are almost 2,000 years old ? That 90% of Madagascan flora and fauna are found nowhere else on earth. Dr Karl and local guide Lala Harivelo takes us on a cultural tour of the world's 4th largest island....

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How to talk Science in 2017 - Masterclass with Bill Nye (58)
Bill Nye is a household name in the United States. Former Engineer for Boeing, he has a real knack of explaining things. On the panel are Peter Lebedev (investigating how YouTube videos could be made better) and Tom Gordon from Sydney University (resident science communicator at the School of Physics).  Clear and accurate communication is fundamental to Science. In 2017, how do you counter beliefs that are ultimately harmful to others and the world at large ? Fascinating discussion....

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Women who measured the stars (57)
Edwin Hubble is world famous for his discoveries. Henrietta Swan Leavitt is not. Henrietta was on a team that found a way to measure and classify the universe. They were employed as "human computers" (before the machines existed). Dava's book "The Glass Universe" refers to the half million glass slides Henrietta and other women used to document both the northern and southern skies. An inspiring story of collaboration and discovery....

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Cyber Security Architecture - How does it keep us safe (56)
How do you repel Cyber Espionage ? Architecture says Dr. Barry - The carefully designed structure of things like networks, software and the organisations around them. The latest wave of attacks is Ransom-ware. Dr Karl finds out how to avoid being held hostage. Dr Barry also gives Karl a bunch of tips for keeping your files secure at home and atwork. How often should you update your operating system software? Data backups - how many and where ? Wifi security, Script Kiddies and more....

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Karl, The Universe & Everything - Book Preview (55)
Jules Faber, Illustrator and Cartoonist, talks with Dr Karl about the creative process using "Karl, The Universe & Everything" as a case study​​.  They talk the science of illustration - and the illustration of science. Why do some images speak louder ? Do cartoonists talk a primal language ? Jules is president of Australian Cartoonists' Association and Karl will also give you a preview of some of the hot stories in his latest book ""Karl, The Universe & Everything". Shameless self publicity ? You be the ju...

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Penetration Tester talks about being Naughty with Dr Karl (54)
How do stock exchanges, nuclear power plants or the military check their computer security ? They hire penetration testers - Cyber security experts who secretly test both IT and organisational security. Dr Karl gets the low-down from Chris Gatford, director of a company called Hacklabs. You will not believe how some places make it easy to get inside....

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Land on a Comet ? No worries says Aussie Engineer Warwick Holmes (53)
We rarely get to hear "insider" stories of extraterrestrial discovery. Doctor Karl meets Warwick Holmes - Australian Avionics Systems Engineer on Rosetta. He worked on the Philae mission (the one that  orbited the comet) seeking the chemical signatures of life. He gives us a blow by blow account of extraterrestrial exploration in the 21st Century. How do you test hardware to fly by the sun and withstand comet dust? How does a lad from South Australia land the best job on earth ? Beam us up Warwick ! First P...

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Busting Gravity with Space Historian Amy Shira Teitel (52)
Self-described ‘professional space history nerd’ Amy Shira Teitel and Dr Karl talk about spaceflight before NASA.  Her book ‘Breaking the Chains of Gravity' covers cutting edge rocket planes like the X-15 (and its surprising link with tractor seats), the team of seamstresses making high-altitude balloons to send to the edge of space, and how paper plates inspired the engineering of early spacecraft. Extraordinary, intimate stories from a time almost lost from in space-age literature. First podcast in 2016....

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Natalie Batalha pt 2 (51)
From 2009 to 2013, the Kepler Space telescope looked for exoplanets. It stared unblinkingly at a patch of sky which Dr Batalha had selected hoping to find potential life supporting planets in the Goldilocks zone. Then something bad happened. Find out what can go wrong and how Dr Karl’s mind was blown to astronomical proportions....

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Natalie Batalha pt 1 (50)
From 2009 to 2013, the Kepler Space telescope looked for exoplanets – planets outside our solar system. It stared unblinkingly at a patch of sky which Dr Batalha had selected hoping to find not just exoplanets, but exoplanets in the Goldilocks zone. Find out what happened, what can go wrong and how Dr Karl’s mind was blown to astronomical proportions....

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SOFIA Studying the Birth of Stars from a Flying Telescope (49)
SOFIA is the Stratospheric Observatory for Infrared Astronomy. Some German astronomers have made a one hundred inch telescope that picks up infrared. They bent it and shrunk it so that it fits into a NASA provided 747 Jumbo Jet. Dr Karl was lucky enough to be taken up for a ride. He spoke with Oliver Zeile about the engineering that keeps the telescope focused and on-target, and with Melanie Chavance who is studying the birth of stars in our nearest galaxy....

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How We Got Into Science (48)
Team Shirtload confesses all when they chat about how they got into science. Was it the nifty lab coats? Being able to use big words with authority? For Karl it has something to do with coathangers in the long grass. But for all it was about the beauty of the logic inherent in the scientific method. Great book recommendations as well....

The Fiery Death Plunge of Spacecraft Cassini (47)
On the 15 September, 2017, after a long and happy life, the spacecraft Cassini will do (or did, depending on when you listen to this) a suicide plunge into the atmosphere of Saturn, the ringed planet. This episode is a repeat, originally released in March 2017.  Dr Linda Spilker has been with NASA's Jet propulsion Lab since 1977. Her work spans Voyager missions and the current Cassini mission. With 40 years of exploration experience, enjoy our extended edition of Shirtloads. Also find out how Australia may ...

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How good is Coffee ? Prof Clare Collins & Dr Karl (46)
Of all hot beverages, Coffee may be the healthiest. It is loaded with antioxidants and beneficial nutrients and it may even lower the risk of some nasty diseases. Dietitician Prof Clare Collins & Dr Karl go through the mounting Scientific evidence. Importantly Professor Collins also goes through the risk factors for some and who should avoid it altogether. Shirtloads of Espresso Science this week....

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Life on Titan, Space Agencies and Hangry (45)
Dr Alice has a look at possible life but not as we know it on Titan. Close to but not quite, Dr Jessica on Australia's place the future shape of Space Agencies. And Dr Karl on how hungry can make you angry and irrational....

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Dr Lucie & Dr Karl at 15 million degrees (44)
Dr Lucie Green is a Solar Researcher. She studies our natural power source – that Great Nuclear Reactor in the Sky, the  Sun. Come along for the ride with me, Dr Karl, as Dr Lucie helps discover how fusion works, why the light we see is ancient (as old as we are), how to tell if there's an astronomer in your car, and the best place to view planet alignments and magellenic clouds. Shirtloads with Dr. Karl is Out Of This World  - with added physics....

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Science + Quiz = Comedy National Science Week 2017 (43)
To celebrate National Science Week in Australia, we all got together under the umbrella of the Sydney Science Festival to have a fun night called SquizCo – in other words, Science Plus Quiz = Comedy. We had two teams of top-notch scientists battling it out in an Arena of Knowledge and Wits under the watchful eye of host and fellow Sleek Geek Adam Spencer, with Dr Karl as the Brains Trust....

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Why Great physics is Messy with Dr Helen Czerski (42)
Dr Karl and Dr Helen - talking about ..World's longest echo, how to photograph the molecules inside an explosion, Oceans, Coffee rings and climate change. Dr Helen Czerski describes Physics today as "messy" and "complex" and she loves it....

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Spider Webs, The Shape of Eggs & On The Road with Bertha Benz (41)
In this episode - just about, almost on-the-verge of becoming Doctor Jessica on the physics of chemical bonding in spider's silk and how it might help us to build better stuff. Dr Alice on computer modelling predicting the shape of eggs. Dr Karl tells us about the first road trip by car....

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Ultra Marathon AstroPhysics with Professor Lisa (40)
Making sense of the Heavens above is extreme science. Add radio telescopes and that becomes multi dimensional. Then apply stresses that destroy 4 wheel vehicles in the desert and you have this week's Shirtloads guest.  Dr Karl and Professor Lisa (Harvey-Smith). Radio astronomer and Ultra Marathon Runner who quit formal schooling aged 11. Unique in the science fraternity and she is focused on big Science. In her own words "There are no Bigger questions than the ones being asked by astronomers. Where do we co...

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Mice in Space, Battery & Plane Travel, Blue Pigment (39)
This week the team are all in the wild blue yonder. Dr Alice talks about mice pups and space and burying sperm deep under the lunar surface. Dr Karl dreams of carbon free plane travel and passengers making space for the lightest element in the universe. And just about a fully formed Dr Jessica on making the newest blue a physical reality....

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White Coffee & Meringues - Prof Claire Collins on the foamy Science of proteins (38)
What makes white coffee so foamy and delicious. That delightful crunch when you bite into the perfect meringue. Scientifically they're both made of the same stuff - protein.  Prof Claire Collins takes us on a journey beyond the taste buds to find the perfect foam for coffee and the prime meringuine making conditions. There is Science behind our recipes and with these tips you will do better.  Dr Karl and Prof Collins are here to help....

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Con Artists, Cold Spots and Stradivarius violins (37)
Things are not always how they seem: Dr Karl explains how to be buff, good looking and scientifically believable in order to con the gullible. Almost Dr Jessica explains how a statistical quirk could look like a collision with another universe. And Dr Alice explains that how that wine you're drinking could taste better in another bottle while listening to your favourite violinist playing a Stradivarius that may or may not sound better than an ordinary violin....

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Climate Science Debate (36)
Why has Climate Science become so contested ?  Dr Karl discusses with two authors. Dr Christopher Wright has written about the past 30 years of Climate Change in "Climate Change, Capitalism and Corporations: Processes of Creative Self-destruction". And Dr Michael Mann, the US researcher who published the hockey stick graph with his latest "The Madhouse Effect : How Climate Change Denial Is Threatening Our Planet, Destroying Our Politics, and Driving Us Crazy"....

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Dr. Michael Mann & the Hockey Stick Graph. (35)
This podcast is about Science and a chart. Team leader, Professor Michael Mann, drew it 20 years ago using good science. It's been named "The Hockey Stick Graph" because of the way it shoots up. It had no new information. Instead it drew on an international scientific consensus. The issue was that it suggested that humans had already changed our climate. The other problem was the clarity with which it expressed those man-made forces. You didn't need to be a scientist read or understand it. Dr Michael Mann,...

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The Artificial Uterus, Schroedinger's Cat & Bacteriophages (34)
Blue Sky Science. This week the lamb in a bag - Dr Alice on the research that may help save premature babies.  Almost Dr Jessica with a cat in a box wanted dead and/or alive. And Dr Karl on the viruses that eats bacteria - maybe there is a future for humans despite antibiotic superbugs....

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Food Fraud Forensic Science (33)
We are what we eat. Organic, low fat, pesticide-free, High Fibre ; Consumers are charged extra for foods with health benefits like these. But when food is packaged, how do you know what is really inside ? Welcome to the world of Food Fraud. This Shirtloads podcast stars two British Scientists who have written all it in "Sorting the Beef from the Bull". Bio-Geo-Chemist Richard Evershead and Biologist Nicola Temple. Dr Karl talking with the "Mulder and Sculley" of the food fraud forensic world....

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Natural Nukes, Pulsars and Lithium-ion Batteries
Natural Nukes - Dr Karl explains how the earth created a nuclear reactor billions of years before we figured out how. Extreme gravity, relativistic rotation speeds and could-have-been alien lighthouses - almost Dr Jessica explains the strange science of the Pulsar. Plus Dr Alice on things that shouldn't go boom - the Lithium-ion batteries that power all our devices....

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Xiuhtezcatl Martinez - Climate Change Activist (31)
From the age of six, Xiuhtezcatl has been out to improve our world. He worked locally to get pesticides out of parks, coal ash contained, and fracking moratoriums. He has addressed the General Assembly at the United Nations in New York. He is currently a plaintiff in a youth-led lawsuit against the US federal government for their failure to protect the atmosphere for future generations.  On a brief visit to Australia he talks with Dr. Karl on how to achieve meaningful change as a youth activist....

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Ayahusca, Number Stations, Silk Stops Bullets (30)
Dr Alice is talking about Ayahusca a South American hallucinogen that may help depression and other mental disorders, nearly Doctor Jessica exploring number stations and the secret messages that haven't stopped despite the end of the Cold War and Dr Karl on whether the silk handkerchief in your top pocket will stop bullets....

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Marine Permaculture (Brian von Herzen) (29)
Imagine cooling down 2,300 km of Barrier Reef along the Australian coast using renewable energy. Mind-blowing, right? Dr Brian Von Herzen has such a plan. It's part of a bigger picture that he calls Marine Permaculture - using nature to restore habitat in the oceans. It is a project he has been working towards for over a decade including demonstrations off Hawaii.  Dr Karl discussed Dr Brian's vision in Queensland earlier this year. The audio quality varies as it was recorded on location....

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Dinosaurs, Dinner & Descendants (#28)
Dinosaur Love - What drove them to sex ? Dr. Alice reports that there may be hints in a distant relative. Test Tube Meat ? The cost of manufactured protein will come down says Almost Dr. Jessica. Plus Dr. Karl on Animal Families. They can have kids from different fathers in the same litter. They're not twins. What are they and Why?...

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SOS_26 Space Junk, FRB & a Fab new Forensic Tool
Imagine laying a sheet of smart film on a masterpiece like "Starry Starry Night". Without contaminating the surface, you can lift off chemical signatures. Discover what paint Van Gogh used, what drugs he might have been taking and even if he was suffering from a recognisable disease. Dr Alice has the story plus Dr Karl on the growing rubbish dump above our heads and (almost) Dr Jessica on those one-off intergalactic tweets called FRBs - what are they ?...

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Swimming with Bacteria (and Dr Matt Baker) #27
Bacteria are more like submarines than fish. They have propellors and motors. This is one of the extraordinary discoveries that Sydney researcher Dr Matt Baker has been part of. In fact he has gone deeper and is looking inside the different motors bacteria species have. What powers these micro machines ?  How they are made ? His stories of life at a micron level are almost beyond belief....

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Gravitational Waves Part 2 (SoS_25)
What discovery deserves to be the biggest of the 2016? We say Gravitational Waves and the LIGO team. Einstein said they were theoretically possible a hundred years ago and this story is so big it'll is worth two podcasts. Welcome once again Professor Geraint Lewis from the School of Physics at Sydney University....

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What is so BIG that ... ?
LIGO - Laser Interferometer Gravitational Wave Observatory was the detector. It has found the most elusive of all cosmic vibrations. One hundred years ago Einstein said they were possible - so mind-bending he changed his opinion twice. A mathematician in the WWI trenches confirmed their theoretical existence and then ... Well this story is so big it'll take two podcasts. Welcome to our Shirtloads "Gravitational Wave Special Part One" and the Associate Head for Research at the School of Physics, Sydney Univ...

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SOS_23 Planets, Poison and Poverty
Searching for other habitable planets, looking for medicines inside deadly poisons and pushing poverty (and wealth) to the limit. A Shirtloads Planet Earth 2017 health check....

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Prof. Claire Collins - 5 Simple foods that might save your life
Cholesterol is a waxy, fat-like substance that your body needs. When you have too much in your blood, it can build up on your artery walls. Too much cholesterol puts you at risk for heart disease and stroke, two leading causes of death. Prof. Claire Collins has 5 simple changes to your diet - that may improve your life and beat these notorious killers....

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Science Talk on Birds, Planets & the Doomsday Clock (21)
Doctors (Karl, Alice & Jessica almost) Talk about the Chemicals you may find on new Planets, a new way to breed endangered birds and why has the Doomsday Clock started ticking again ?...

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Dr. Linda Spilker knows lots about Saturn (you'd swear she's been there). Well she has - virtually.
Dr Karl's Shirtloads takes you to where Water-Ice is rock, salty Geysers blow (just like earth's underwater Hydrothermic jets) and the prospects for life in our own Solar System are tantalisingly close. Dr Linda Spilker has been with NASA's Jet propulsion Lab since 1977. Her work spans Voyager missions and the current Cassini mission. With 40 years of exploration experience, enjoy our extended edition of Shirtloads. Also find out why you should put September 15th in your diary and how Australia may play a v...

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Science Talk = Zealandia, Autism and the Soap we had to ban
Planets are popping up everywhere but what about that new Continent on Earth - Why has it taken us so long to find it ? Which part of the human brain is revealing a relationship with Autism .... and why did we have to ban a certain type of soap ? Surely something as simple as soap can't be that bad ? Dr Karl, Dr Alice and Dr (almost) Jessica discuss the latest....

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Ben Goldacre - Fact Checking Scientist
"Fake News" was 2016's word of the year (according to the Macquarie Dictionary). Can "fake news" make you sick ?  Doctor Karl meets a fact-checking scientist. Ben Goldacre reviews articles in medical Journals. Ben is "Senior Clinical Research Fellow" at the Center for Evidence-Based Medicine at Oxford University and he says there are reasons to be concerned. (His Dead cat is a professional member of the American Association of Nutritional Consultants - proof that fancy titles means nothing.)...

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Science Talk #17 - Tickles. The Moon and why our Clocks need leap seconds.
Dr Alice talks about Tickling and why brain researchers are so interested in it - (did you know there are professional Rat Ticklers ?). Dr Jessica reports on the latest evidence of the origin of our moon. Doctor Karl on why we keep on adding leap seconds to our clocks - what is going on....

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The "E" in STEM - Dr Karl & Dr Kanga talk Engineering
Meet Dr. Marlene Kanga. She is about to become president of an international governing body looking after 2 million professionals. Our future depends on innovation and the creative heart is Engineering. She talks with Dr Karl of the value Engineers bring to society, which specialties are attracting female engineers and what Australia can do to catch up with some of the leading nations....

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Science Talk - 2016 Highlights
Karl, Alice and Jessica choose and discuss their top 4 Scientific discoveries of 2016. Astronomy, Biology, Computer Science, Physics and more. But there is one breakthrough they all agree on (and it has an Australian connection). Listen and find out....

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Warwick Holmes - the Rosetta Mission's Aussie Avionics System Engineer
We rarely get to hear "insider's"  stories of extraterrestrial discovery. Doctor Karl meets Warwick Holmes - avionics systems engineer on the Rosetta mission that orbited comet seeking the chemical signatures of life. He gives us a blow by blow account of extraterrestrial exploration in the 21st Century. How do you test hardware to fly by the sun and withstand comet dust. How does a lad from South Australia land the best job on earth ? Beam us up Warwick !...

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Science Talk #13
Three Doctors (almost) - with Dr Karl's report on his expedition to see the Great Barrier Reef coral spawn . Dr Alice on why morning sickness may be good 4 U and how ear-worms work. Plus Dr Jessica (almost) on the physics of the ponytail....

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Shirtloads of Science Ep 11 with Dr Alice
Dr Alice reports on "open source pharma" for malaria, Dr Karl on space nation #3 - China. Dr Alice on Australian Budgerigars and the traffic control of drones. How Diet is the new highway to human development and is your brain tricking you into making bad choices ? 2017 New Year resolution advice from Shirtloads...

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Space Historian
Self-described ‘professional space history nerd’ Amy Shira Teitel joins Dr Karl to talk about spaceflight before NASA in her book ‘Breaking the Chains of Gravity’. Hear about cutting edge rocket planes like the X-15 (and its surprising link with tractor seats), the team of seamstresses behind the launch of high-altitude balloons to the edge of space, and how paper plates inspired the engineering of early spacecraft. Tune in for extraordinary, intimate stories from a time that is often forgotten in space-age...

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Science Talk
Dr Alice has been shark hunting in the Arctic waters (i.e. through scientific papers) and discovered the oldest vertebrate in the world is at least 272 years old. Meanwhile, back on the land, why are two scientists riding a roller coaster holding a bag with an artificial kidney and stones? Dr Karl is considering a ‘fusion’ breakfast after hearing that spicy food may be good for your health. Fruit salad with chilli anyone? And why does the Zebra finch sing a different song to its eggs just before they hatch?...

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Marine Biology Adventures
Marine biologist, diver and author Dr Helen Scales takes Dr Karl deep beneath the waves to share her passion for life in the ocean. Helen talks about her new book ‘Spirals in Time’ on the secret life of shells. Hear about ‘clacking’ oysters, the legend of the Golden Fleece (sea silk) and a creature resembling a pinecone crossbred with a slug. There’s mathematics in the spirals of shells, slave trading in the history of the cowrie shell and just imagine a Harry Potter golden snitch of the sea… it’s real and ...

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Science talk : Movie releases of a chemical kind, exercise and coffee
Dr Alice is back in the house for science chat and she’s got popcorn for Dr Karl! But wait, why? They are talking movies and the science behind knowing what’s going on in a film by measuring the chemicals released by the audience. Who knew there could be a link between ‘The Hunger Games’, the Amazon rainforest and being able to diagnose medical conditions? Find out what happened in the case of the ‘poisoned pants’ and what’s the best time to exercise to lose weight? They ask the big questions about coffee –...

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Nutrition, Dietetics and Your Toilet Bowl
Clare Collins is a Professor in Nutrition and Dietetics at the University of Newcastle. She joins Dr Karl for a colourful conversation about your toilet bowl and what it can tell you about your health. Don’t be shy, listen up and discover what weird colours you should not see, and what they could mean. Got green poo? There’s an explanation. How about ‘cappuccino’ wee or purple pee? You’ll be surprised. Find out when to see your GP and what to show and tell. Perhaps you’ll take away Dr Karl’s new mantra: ‘wh...

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Science talk: Watering plants, the first night effect and talking to dogs
Dr Karl and Dr Alice put their heads together to discuss the latest research into well… all sorts of stuff! What do hairy leaves have to do with burning plants? Is Dr Karl’s fruit and veggie classification (serve it with ice-cream it’s a fruit, with gravy it’s a vegetable) scientifically accurate? And what exactly do killer kangaroos have to do with being unable to sleep in an unfamiliar bed? Listen up as the Doctors tackle these questions and more. And, if you talk to dogs (like Dr Alice does) there’s an e...

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The Quest for Longitude
Maritime history’s greatest scientific breakthrough was working out longitude, the distance (measured in degrees, minutes, and seconds) of how far a point is, either East or West, of the Prime (Greenwich) Meridian. Dr Karl unravels this discovery with Kevin Sumption and James Hunter from the Australian National Maritime Museum in Sydney, as they talk about the history of navigation and their 2016 exhibition, Ships, Clocks and Stars: The Quest for Longitude. Hear about extraordinary nautical instruments, dif...

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The Open Source Malaria Project
Over 200 million people are infected with malaria every year. Dr Alice Williamson, research chemist, lecturer and science communicator at the University of Sydney talks to Dr Karl about her work with Open Source Malaria. This is a worldwide drug discovery project that shares all data and results (no patents please!) in an incredible collaborative effort to tackle the disease. Hear about the problems encountered, Alice’s work in the lab, the thrill of working together with high school and undergraduate stude...

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The Kepler Mission Scientist: Part 2
Part Two reveals what happened when one, and then two (!!) of the Kepler Spacecraft reaction wheels went to lunch, how the news almost drove Dr Karl to whiskey, and how the engineers found a brilliant solution and continued on with Kepler Mission 2. A jaw-dropping discussion about the discoveries made, including potentially habitable earth-sized planets, the inconstancy of stars, and the probability of finding evidence of life beyond planet Earth....

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The Kepler Mission Scientist
Dr Karl looks to the stars to kick off his new podcast with NASA Ames research astrophysicist Dr Natalie Batalha, the Kepler Mission Scientist. From 2009 to 2013, the Kepler Space telescope looked for exoplanets – planets outside our solar system. It stared unblinkingly at a patch of sky which Dr Batalha had selected hoping to find not just exoplanets, but exoplanets in the Goldilocks zone. Find out what happened, what can go wrong and how Dr Karl’s mind was blown to astronomical proportions....

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