Shirtloads of Science

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 second look. 
We dive into honey's beneficial micronutrients, anti-inflammatory properties, and why the nutritional profile can vary dramatically depending on where bees source their pollen. Clare also busts the myth that honey is "bee vomit", revealing the fascinating biology behind how bees actually make honey and why these incredible insects deserve our respect!
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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. Working 1.2 kilometres underground in a converted gold mine in regional Victoria, they're searching for WIMPs - weakly interacting massive particles - in one of the quietest, most interference-free environments on Earth. The lab is being built out now, and further experiments are on the horizon. We may be closer to one of the biggest discoveries in scientific history than we realise.

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 temperatures are quietly reshaping our daily lives, from reducing physical and cognitive productivity, to costing the global economy an estimated trillion dollars annually. But it's not all bleak - Professor Jay highlights that meaningful change is within reach. With the right political action and long-term interventions, we can protect both public health and economic stability - the solutions are already in our hands.

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 benefits. 
We discuss how VILPA is grounded in observational research and the idea of "exercise snacks" which describes quick, accessible moments of effort that add up. The focus is on helping people recognise and maximise these daily opportunities to improve fitness and support long-term health.

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 orbital mirrors to light up Earth's dark side. Brown breaks down why many of these concepts are far less practical than they sound. With over 15,000 satellites circling earth, Brown also examines the promises and downsides of mega-constellations like Starlink, including how they operate and the challenges they pose for astronomers and the environment.
It's a fascinating and critical peek in to the intersection of innovation, risk, and imagination in the new space age.