Unexpected Elements

This week the Unexpected Elements team has travelled Down Under to sunny Sydney where we discover some wonderfully Australian science with the help of some wonderfully Australian panellists. First, we discuss the surprising American origins of Australia’s iconic marsupials and Marnie gets up close and personal with Pez the Tasmanian Devil. We also talk to Andy Flies from the University of Tasmania who is working on a vaccine to combat a deadly contagious cancer spreading through Australia’s Devil population. Next, we’re joined by Susan Sawyer from the University of Melbourne as we delve into the debate surrounding Australia’s social media ban for under 16-year-olds. Are the kids alright? Plus, we find out about the tree that seems to be adding fuel to the country’s recent wildfires. All that, plus many more Unexpected Elements. Presenter: Marnie Chesterton, with Katie Silver and Jonathan Webb Producers: Margaret Sessa-Hawkins, with Ella Hubber, Sophie Ormiston and Lucy Davies

Dr. Fatima Ebrahimi, a plasma physicist from Princeton, reveals the exhilarating world of nuclear fusion. She clarifies how fusion mimics the sun’s energy creation and requires extreme conditions to succeed. The discussion uncovers the revolutionary potential of clean energy through fusion and the engineering challenges that still lie ahead. Fatima's insights ignite curiosity about how this technology could transform our power grids in the near future!

We revisit our listeners’ favourite topics and dig deeper in this special programme.First, we hear from some of our insomniac listeners and explore how we fall asleep with neuroscientist Dr Ada Eban-Rothschild from the University of Michigan.Next, we return to our favourite food facts with a small surprise for one of the presenters.Then, we put our knowledge to the test with extra quizzes and examine the randomness of multiple-choice questions.Finally, we’re joined by Dr Alyn Euritt to discuss the importance of connection, especially between Marnie, Caroline and all the loyal listeners of the show.All that, plus many more Unexpected Elements. Presenters: Caroline Steel and Marnie Chesterton Producers: Imaan Moin, with Margaret Sessa-Hawkins and Lucy Davies

Join Dr. Krishma Singhal, a postdoctoral physicist from Rice University, as she dives into the fascinating world of soft-matter physics and knitting. Discover how the unique topology of knit loops creates elasticity and programmable fabric behaviors. The discussion also explores the health benefits of donating blood and how polar bears contribute to Arctic ecosystems. Get ready for surprising insights about piranhas, the science of sneezing, and the chemistry behind salting roads—perfect for a holiday treat!

In this engaging discussion, visual ecologist Daniel Hanley from George Mason University shares fascinating insights into how animals perceive the world. He explains why birds can see ultraviolet light while mammals cannot have green pigmentation. The conversation touches on bittersweet feelings tied to the end of beloved series like Neighbours and how screen time may contribute to vision issues. Listeners also learn about the innovative camera Hanley created to visualize animal perception, bringing the invisible world into focus.

Join Jingmai O’Connor, an expert on the dinosaur–bird transition and Associate Curator of Fossil Reptiles at the Field Museum, as she unpacks the fascinating links between birds and their dinosaur ancestors. The discussion delves into how rice farming may have shaped chicken domestication and the chicken-or-egg paradox. Learn about innovative research revealing humans' surprising ability to understand chicken vocalizations. Plus, discover Brazil's rise as a poultry giant and what happens to chickens during tornadoes!

A lost teddy bear mission sparks a fascinating discussion on how bear hibernation can aid astronauts' health in space. There's a surprising conservation win linked to a US Air Force site that helps protect endangered species. Expert Justin Gregg explains the reasons behind our tendency to anthropomorphize objects, sharing heartwarming anecdotes. Plus, delve into the idea that getting lost could actually enhance our memory and navigation skills. A whimsical mix of science and heart warms this insightful exploration!

Dr. Siyakha Mguni, an archaeologist from the University of Cape Town, dives into the ancient world of rock art, sharing insights on dating techniques and conservation challenges. He discusses the fascinating origins of prehistoric cave paintings and their animal motifs. The conversation also touches on the limitations of radiocarbon dating. Alongside these ancient stories, the team explores how microbiology influences art restoration, revealing how bacteria can help preserve masterpieces like frescoes and why mosquitoes could be the future of 3D printing.

In this fascinating discussion, Marcus du Sautoy, an Oxford professor of mathematics, highlights the stunning beauty of math and its creative aspects, arguing for a more artistic approach to teaching the subject. Meanwhile, Fig O’Reilly, Miss Universe Ireland 2019 and NASA data analyst, shares her unique journey of balancing pageantry with science communication. The conversation also touches on the genetic versus cultural influences on beauty, the intriguing 'audience effect' on performance, and the surprising world of civet coffee and death metal singing.

Join food historian Pen Vogler as she unpacks the fascinating history of beer, tracing its origins back to ancient China and exploring the evolution from home brewing to a professional industry. She also explains why a 150-year-old Arctic Ale could still be drinkable and discusses the beliefs surrounding alcohol’s role in cold expeditions. Additionally, the episode dives into unique topics like auto-brewery syndrome and the surprising ways yeast might help combat climate change, making for a delightful blend of science and history.