Shirtloads of Science

When Robbie Williams announced he had been diagnosed with s curvy earlier this year, Professor Clare Collins was relieved… why?! Because he was bringing attention to a major issue arising from the use of the popular class of weight loss medications, GLP-1s. Professor Collins joins me on Shirtloads to discuss how  nutrient deficiencies have increased among those using these medications. Clare agree...

In mid-2026, a swarm of AI agents coordinated a cyberattack on Hugging Face, a platform where machine learning communities can collectively work to improve AI models and capabilities. This breach happened without human supervision. Friend of the show and science communicator Dr. Petr Lebedev brings us up to speed on what is now being referred to as the first true AI safety incident. A crucial conv...

Science writer and journalist Marcus Chown returns for a shorter, more philosophical chat. When Einstein first proposed gravitational waves, atoms hadn't even been discovered, so who knows what the next century holds? We dig into the strange idea of the universe's "mathematical twin," and discuss the Standard Model of physics - a brilliant framework, but riddled with holes. www.marcuschown.com

Science writer and former astrophysicist Marcus Chown joins us to discuss the elusive graviton - the theoretical particle behind gravity.   In this chat we dig into the four fundamental forces of nature, why gravity is so uniquely hard to pin down, and why detecting a graviton would require a detector larger than Jupiter. Marcus also unpacks string theory, the only framework that manages to fold g...

A bonus episode straight from the audience at Geraint Lewis' book launch for "The Shortest History of Reality." Listeners fire off some big questions: where do we sit with the 95% of the universe we can't explain? What is dark energy? Why does time feel so different experientially? Along with other questions concerning the Theory of Everything, whether light really has a speed, what happens to our...

Join us for a special live episode of Shirtloads of Science, recorded at Willoughby Library for the launch of Professor Geraint Lewis' new book, "The Shortest History of Reality" - a compelling journey tracing the evolution of humanity's understanding of reality. In this live session, Geraint touches on a number of deep and puzzling concepts concerning reality (according to an astrophysicist) - fr...

Motor journalist Toby Hagon returns to Shirtloads of Science for round two on electric vehicles. Toby shares how he got into motoring journalism and what the job really involves. We break down 400V vs 800V batteries, charge cycles, and the reality of battery degradation, decode WLTP vs NEDC ratings, and marvel at just how powerful EVs really are. evcentral.com.au outbacktravelaustralia.com.au evce...

Motor journalist Toby Hagon joins Shirtloads of Science to talk all things electric vehicles. We break down the often-confused difference between kilowatts and kilowatt-hours, compare EVs against petrol cars on performance, energy use, and cost, and explore everything from single to quad-motor setups. Toby unpacks AC vs DC charging and battery basics, looks at how servicing costs stack up, and sep...

Associate Professor Anai Gonzalez-Cordero joins us on Shirtloads to explore the remarkable world of stem cells and how they can develop into almost any cell in the human body! She explains how her team is using stem cell technology to better understand and develop potential treatments for inherited retinal diseases, including Stargardt disease and Usher syndrome. We also discuss her work at the Ch...

What if evolution isn't just about the survival of the fittest? Rowan Hooper, senior editor at New Scientist, joins Shirtloads to discuss his new book  Togetherness - a challenge to the idea that nature is defined purely by competition. From the fig and wasp's ancient partnership to the mycorrhizal fungal networks threading through forest soils, Hooper makes a compelling case that relationships an...

This conversation was originally recorded and published in November, 2024. In light of Richard's passing, we wanted to share it again because his insights remain as inspiring and relevant as ever. We extend our deepest condolences to his family, friends and colleagues.

Dr. Ann Jones joins me to chat about her hilarious new What the Duck? series, Nature's Most Wanted , which dives into the wild world of criminal animals. We investigate some of nature's strangest case files… a duck caught speeding (twice), drug-addicted parrots, an underwear-nicking cat, drunk elephants, and heavyweight hamsters! A funny look at the surprising ways animals collide with the human r...

Marine Ecologist Assoc. Professor Alex Campbell takes us into the wonderful, under-appreciated world of seaweed and makes the case that it might be one of our most powerful allies against climate change! We dive into seaweed's evolutionary history and the troubling decline now underway: as ocean temperatures rise, marine organisms are shifting toward the poles at a rate of over 60km per decade to...

I'm joined by Dr Nick Fuller to dissect the long-term effectiveness of weight loss medications and why lasting results do actually require more than medication alone. Nick explains why evidence-based behavioural weight management programs remain the first-line approach to weight loss built on three key pillars: diet, exercise and sleep (did you even know that sleep plays a big role in regulating h...

This episode I'm joined by Dr Peter Lee, Head of Research at Microsoft, to explore the ideas shaping the future of technology. Leading 14 research laboratories globally and overseeing a research and development program that receives more than 10% of Microsoft's overall budget, Dr Lee shares his journey to the top of one of the world's largest innovation engines. From AI tools transforming early ca...

In this episode, we speak with Dietmar Müller about the "Boring Billion", a seemingly quiet period in Earth's deep history that may have been crucial for the evolution of complex life. Drawing on his latest research, Müller explains how plate tectonics, passive continental margins, and volcanic outgassing shaped Earth's slow carbon cycle and gradually oxygenated the oceans during the mid-Proterozo...

Astronomer and soon-to-be Dr. Kovi Rose joins us to discuss his newly published Nature Astronomy paper on one of the universe's newest mysteries: strange repeating flashes of radio waves and X-rays coming form deep within our galaxy! His team's discovery of ASKAP J174 has helped identify the source as a pair of stars orbiting each other, with a white dwarf pulling or accreting material from its co...

Professor Clare Collins returns to the pod to answer a common question: does coffee raise your blood pressure? We also discuss how genetics influence whether you're a fast or slow caffeine metaboliser, the beneficial phytonutrients found in coffee, why decaf still has health benefits, and when people with high blood pressure may need to be more cautious with their intake. nomoneynotime.com.au

Friend of the pod Professor Clare Collins returns to dive down into the sticky depths of the surprisingly powerful world of honey - far beyond being "just a sugary liquid". From the hallucinogenic "mad honey" of the Rhododendrons to the science behind medical-grade honey dressings that can heal wounds days faster than conventional treatments, Dr. Clare explains why this ancient food deserves a sec...

What is the universe actually made of? Particle physicist Theresa Fruth join us at Shirtloads to explore one of science's greatest unsolved mysteries - dark matter! Making up roughly 85% of the universe, yet appearing in none of our known particles, dark matter is invisible, elusive and almost certainly the reason the universe (and us!) exist at all. Theresa and her team are hunting for it anyway....

Professor Ollie Jay, a leading expert in heat and health, returns to Shirtloads to discuss the growing toll of climate change on human wellbeing and global economics. Insights drawn from the latest  Lancet Countdown report show that over half a million people die from heat-related causes each year, and a million more from fossil fuel pollution - deaths that are largely preventable.  Rising tempera...

In this episode, we speak with Professor Emmanuel Stamatakis about Vigorous Intermittent Lifestyle Physical Activity (VILPA) - short bursts of high-intensity movement built into everyday life, like walking briskly or carrying groceries. With only a quarter of adults exercising regularly, his research highlights how incidental activity, when done with enough intensity, can offer meaningful health b...

We're living through the great Space Boom and with great innovation comes a lot of whacky ideas... Astronomer and Associate Professor Michael Brown from Monash University joins me to discuss stupid things in space.  The conversation dives into some of the more bizarre and ambitious ideas circulating the space industry, from firing villains and radioactive waste in to the sun to deploying giant orb...

In this episode I sit down with Professor Conny Aerts, a pioneering mathematician and founding figure of astroseismology, who reveals how scientists are "listenting" to stars to understand what's happening deep inside them. From oscillating stars to solar sunquakes, she explains how sound waves can measure the sun's size, age and activity.  Beyond the science, she shares her remarkable journey fro...

We're scared to say the D word! But why is talking about death such a taboo? Dr. Hannah Gould, a cultural anthropologist at the University of Melbourne, joins me to discuss the topic in the wake of the release of her new book 'How To Die in the 21st Century'. The discussion dives in to the modern experience of dying, from the pressures of having a 'good death' to the reality of overly medicalised,...