Unexpected Elements

The beautiful game

As the Fifa Men’s World Cup kicks off this week in the United States, Mexico, and Canada, football fever is everywhere – and this has the Unexpected Elements team exploring all things football. First, we discover how it took eight years and 170 experiments for scientists to create the perfect grass pitch. Then, why a football is not really a ball… it’s a truncated icosahedron. We discuss how this shape revolutionised not only the beautiful game, but nanotechnology too. Then, what secrets can your sweat reveal? We are joined by Prof John Rogers who explains how sweat is an underappreciated and understudied biomarker of our health. And whether in life or in football, what is a better strategy – survival of the fittest or co-operation and teamwork? Author Rowan Hooper joins us to battle it out. Presenter: Marnie Chesterton, with Chhavi Sachdev and Ogechi Ekeanyanwu Producer: Ella Hubber, with Sophie Ormiston, Lucy Davies and Robbie Wojciechowski

Science bears fruit

Long live the king – of mangoes! In India the famed ‘king of mangoes’, the Alphonso mango, is in drastically short supply after a particularly bad bout of adverse weather. Inspired by the mango’s plight, the Unexpected Elements team takes a look at what fruit science can bear. First, from the ‘king of mangoes’ to the ‘king of fruits’, we hear how the infamously stinky durian could be used to charge your phone. Then, an evil lemon planet. We discuss the planet so bizarre it sounds like it belongs in a sci-fi movie. Plus, have you ever wondered what the key to immortality is? Well, if you guessed sea cucumbers you might be right. We’re joined by Dr Annie Mercier who tells us all about these eternal weirdos of the sea and their surprisingly vital role in the ocean’s ecosystem. Also, a crayfish invasion, plant cause of death, and what exactly is El Niño? All that, plus many more Unexpected Elements. Presenter: Marnie Chesterton, with Sandy Ong and Michael Kaloki Producers: Sophie Ormiston, with Lucy Davies, Alice Lipscombe-Southwell and Robbie

Celebrating science on Africa Day

How do you translate the latest science work across the 2000 different languages spoken around the African continent? And have you heard of sky mountain? Africa Day has the Unexpected Elements team taking a deep dive into a range of unexpected stories from across the continent. The day is celebrated every year to mark the establishment of the African Union in 1963. In the Turkana region of northern Kenya, we learn about a team of geologists who have been studying continental break-up. Researchers think it could be one of the weakest areas of the Earth’s crust. We explore the difficult process of translating scientific papers into the many languages spoken across the continent. Plus, entomologist Dr Gimo Daniel tells us about the unexpected joys of dung beetles. And we learn how AI and large language models are finding new ways to track conservation and mass animal migrations. And finally, we explore why bats harbour so many diseases yet seem to be tolerant to things that humans get ill from. Presenter: Marnie Chesterton, with Tristan Ahtone in Finland and Phillys Mwatee in Kenya Producer: Margaret Sessa-Hawkins, Alice Lipscombe-Southwell and Robbie Wojciechowski

Unexpected enhancements

Have you ever wondered what happen to salmon when too much cocaine seeps into their rivers? Inspired by the Enhanced Games, we lookat unexpected areas of performance enhancement. Peptides are making a splash in influencer circles, but what is the science? Plus, we hear from Prof David Putrino, who is making sure the athletes at the Enhanced Games are staying safe. He shares what we can learn from the Games – and how the data could help develop future medicines. Also on the show, whether radio waves can enhance your sense of smell, and is an hour at a gallery as beneficial as an hour at the gym? Presenter: Marnie Chesterton, with Katie Silver and Andrada Fiscutean Producer: Sophie Ormiston, with Margaret Sessa-Hawkins, Robbie Wojciechowski and Scarlett Victoria

Hantavirus outbreak and what’s in a name

An outbreak of hantavirus on the MV Hondius cruise ship has us looking at the unexpected science around the disease. First up, why is this outbreak such an unusual occurrence? Then, what's in a name? We look at how diseases are named, and why the system has sometimes been problematic. Also, the mysterious case of medicine disappearing from the quarantine tanks at an aquarium. We speak to the expert who solved the puzzle. All that, plus more fun and strange science, on this week's Unexpected Elements. Presenters: Alex Lathbridge, with Camilla Mota and Kai Kupferschmidt Producers: Margaret Sessa-Hawkins, with Alice Lipscombe-Southwell, Robbie Wojciechowski and Scarlett Victoria