The Curious Cases of Rutherford & Fry

"How do you make antimatter?' asks Scott Matheson, aged 21 from Utah. The team takes charge of this question with a spin through the history of antimatter. Adam talks to physicist Frank Close, author of 'Antimatter', about its origins in the equations of Dirac to its manufacture in the first particle accelerator, the Bevatron. Cosmologist Andrew Pontzen tells Hannah why physicists today are busy pondering the mystery of the missing antimatter. Anyone who discovers why the Universe is made of matter, rather than antimatter, is in line for the Nobel Prize. Plus, neuroscientist Sophie Scott describes how antimatter has been put to good use down here on Earth to peer into people's brains. Presenters: Hannah Fry, Adam Rutherford Producer: Michelle Martin

Stephen Fry (no relation) asks Adam and Hannah to investigate the following question: "All my life I have been mildly plagued by the fact that I have a quite appalling ability to remember faces. I cut people I should know well dead in the street, or at least fail to recognise them in a way which must often be hurtful. At a party I can talk to someone for ten minutes and then see them again twenty later and have no idea who they are unless I’ve made an effort to fix some accessory or item of their dress in my mind. If I see them the next day in another context I’ll have no idea who they are. It’s distressing for me inasmuch as I hate the idea that people might think I am blanking them, or think little of them, don’t consider them significant and so forth. I’d be very grateful if my sister-in-surname and her eximious partner Adam could investigate prosopagnosia for me and offer any hint add to as to its cause or even possible – I won’t say “cure” as I am sure it’s chronic and untreatable – but at least any interesting ways of relieving it." Hannah and Adam call in the experts, neuroscientists Sophie Scott and Brad Duchaine. Why is it that some people struggle with prosopagnosia, whilst others never forget a face? You can find out more about Face Blindness, who it affects and how to cope with it by visiting www.faceblind.org.uk/ Presenters: Hannah Fry, Adam Rutherford Producer: Michelle Martin

Rutherford and Fry delve into the history of roller coasters in the second instalment of their investigation into why we enjoy being scared. Amelie Xenakis asks: "Why do people enjoy roller coasters? I am a thrill-seeker and I am always terrified before riding a roller coaster but I enjoy the ride itself. (I would like BOTH of you to ride a roller coaster if possible)." Never ones to shy away from a challenge, the pair attempt to channel their inner adrenaline junkies with a trip on one the UK's scariest roller coasters at Thorpe Park. They discover the birth of the roller coaster in the 18th century, when Catherine the Great enjoyed careering down Russian Ice Mountains covered in snow. Adam talks to scary sociologist Margee Kerr, author of 'Scream! The Science of Fear', about how the modern roller coaster evolved. David Poeppel from New York University studies the science of screaming, and we discover what makes screams uniquely terrifying. Plus, psychologist and broadcaster Claudia Hammond describes some early experiments which tested how fear affects our body. Presenters: Adam Rutherford, Hannah Fry Producer: Michelle Martin

It was a dark and stormy night around the time of Halloween. A secret message arrived addressed to Rutherford & Fry from a mysterious woman called Heidi Daugh, who demanded to know: "Why do people like to be scared? For example, going on scary amusement park rides and watching horror movies that make you jump.” What followed was an investigation over two chapters, which would test our intrepid duo to their very limits. In this first instalment, they explore the history of horror, starting with its literary origins in the Gothic fiction classic 'The Castle of Otranto'. Adam challenges Hannah to watch a horror film without hiding behind a cushion. She quizzes horror scholar Mathias Clasen to find out why some people love the feeling of terror, whilst it leaves other cold. Sociologist Margee Kerr and psychologist Claudia Hammond are also on hand to explore why scary movies are so powerful and popular. Presenters: Hannah Fry, Adam Rutherford Producer: Michelle Martin

Rutherford and Fry are back with Series 14. In an extended podcast trailer they discuss their favourite strange-but-true scientific studies, from jetlagged hamsters to flatulent snakes. Presenters: Hannah Fry, Adam Rutherford Producer: Michelle Martin