PODCAST

Curious Cases

BBC Radio 4

Hannah Fry and Dara Ó Briain tackle listeners" conundrums with the power of science!

science

All Episodes

34:19

The Shocking White Hair

Curious Cases ·

2022/03/10

Why does human hair go grey and is it ever possible for it to go white overnight from shock? Hannah and Adam explore why hair goes grey, how much stressful life events and a lack of sleep can speed up the process. They hear from the pilot whose hair turned white after a flight where all 4 of his engines failed after flying through a volcanic ash cloud - was the shock responsible? They also uncover new research which has shown it's possible for greying hair to return to its natural colour and ask if

33:29

Surprising Symmetries

Curious Cases ·

2022/03/03

Two eyes, two arms, two legs - we’re roughly symmetrical on the outside, but inside we’re all over the place! We just have one heart, which is usually on the left, one liver on the right, one spleen and one appendix.Why is that?’ wonders listener Joanne.Our science sleuths discover that being symmetrical down the middle - at least on the outside - is by far the most common body plan across the animal kingdom. Professor Sebastian Shimeld from the University of Oxford takes us on a journey into the

34:32

The Weird Waves of Wi-Fi

Curious Cases ·

2022/02/24

We use Wi-Fi every day, but do you know how it works? “Is it waves and science or just some mystical magical force?” wonders listener Abby. Well, our science sleuths are on the case. To help them navigate the strange realm of electromagnetic waves they are joined by Andrew Nix, Professor of Wireless Communication Systems from the University of Bristol. He explains why your wi-fi router won’t heat up your baked beans, but your microwave will. Andrea Goldsmith, Professor of Electrical and Computer

33:43

The Mystery of the Teenage Brain

Curious Cases ·

2022/02/17

‘Why are teens prone to risky behaviour?’ asks Dr Mark Gallaway, ‘especially when with their friends?’ 13 year old Emma wonders why she’s chatty at school but antisocial when she gets home. And exasperated mum Michelle wants to know why her teens struggle to get out of bed in the morning. Swirling hormones and growing bodies have a lot to answer for but, as Professor of Psychology from the University of Cambridge Sarah-Jayne Blakemore explains, there’s also a profound transformation going on in the

6:49

We’re (almost) back!

Curious Cases ·

2022/02/11

Our sci-curious detectives will be investigating a menagerie of mysteries sent in by listeners - from teenage brains to the magic of Wi-Fi and our strangely symmetrical bodies.

27:39

Rutherford and Fry on Living with AI: A Future for...

Curious Cases ·

2021/12/23

As huge tech companies race to develop ever more powerful AI systems, the creation of super-intelligent machines seems almost inevitable. But what happens when, one day, we set these advanced AIs loose? How can we be sure they’ll have humanity’s best interests in their cold silicon hearts?Inspired by Stuart Russell’s fourth and final Reith lecture, AI-expert Hannah Fry and AI-curious Adam Rutherford imagine how we might build an artificial mind that knows what’s good for us and always does the right

27:41

Rutherford and Fry on Living with AI: AI in the Economy

Curious Cases ·

2021/12/15

The refrain ‘robots will take your job’ is one heard with increased frequency, but how quickly is automation of the labour force really happening and would it really be such a bad thing if many jobs were powered by artificial intelligence?In this third episode, inspired by this year’s BBC Reith lectures from AI expert Stuart Russell, Adam Rutherford and Hannah Fry - together with expert guests - imagine what the future of work might look like. Will the move towards increased use of artificial

27:39

Rutherford and Fry on Living with AI: AI in Warfare

Curious Cases ·

2021/12/08

What if a despotic leader could programme a swarm of drones to kill a set of identified targets with just the push of a button? Due to ever expanding AI capabilities this extreme dystopian vision may not be technically unfeasible. In this second of a four part series responding to this year's BBC Reith lectures from Stuart Russell, Adam Rutherford and Hannah Fry unpick the role of AI in warfare.Joining them to help them navigate the battlefield of information is Ulrike Franke, a senior policy fellow

27:43

Rutherford and Fry on Living with AI: The Biggest...

Curious Cases ·

2021/12/01

Artificial Intelligence (AI) is already ubiquitous in our lives. It curates our nightly TV entertainment, connects us to our friends online and navigates us, mostly successfully, to our destinations. However these uses are just the beginning, and it will likely bring societal changes we can’t yet imagine.In this year’s BBC Reith lectures, AI expert Professor Stuart Russell will be exploring how AI has been represented in popular fiction, envisaging how this technology might shape our futures and how

42:44

The Venomous Vendetta

Curious Cases ·

2021/11/11

Whilst watching a documentary about some poisonous frogs, Curio Janni in Amsterdam, started to wonder what would happen if a frog licked itself or another frog of the same species. She asks Dr Adam Rutherford and Professor Hannah Fry to investigate whether an animal would react badly to a toxin it itself produces? In essence 'can a venomous snake kill itself by biting itself?'Of course the answer is complicated, but the sleuths know exactly who to ask.Steve Backshall, award-winning wildlife

37:40

The Slippery Situation

Curious Cases ·

2021/11/04

'What is the slipperiest thing in the world?' asks 8 year old Evelyn. Why do my feet slip on a wet floor but when my feet are even slightly moist it's nearly impossible to put on a pair of socks without falling over and cursing the universe. What is going on here?' asks Evelyn's Dad, Sam.Hannah and Adam investigate the science of friction and lubrication - so called 'tribology' with the help of tribologists and mechanical engineers Professor Ashlie Martini from California University Merced and

37:26

The Painless Heart

Curious Cases ·

2021/10/28

Why does my heart not ache after exercise? asks listener Keith. Rutherford and Fry explore how and why heart muscle cells are special.Dr Mitch Lomax is a sports scientist at the University of Portsmouth. She helps actual Olympic swimmers get faster. She explains how most of the muscles attached to our skeletons work: Tiny fibres use small-scale cellular energy, which, when all these fibres work in concert, turns into visible muscular movement. Mitch also explains how the dreaded Delayed Onset Muscle

40:20

The Weirdness of Water Part 2/2

Curious Cases ·

2021/10/21

“I don’t really understand why water has so many properties on different scales ranging from very large and cosmic to very small quantum and quarky - Could you help by zooming in and out on water to explain what is known about it? "Asks Neil Morton in Stirling. “Why does boiling water sound different to cold water?’ asks Barbara Dyson in Brittany in FranceOllie Gordon, in Christchurch in New Zealand, wants to know ‘why water is essential for all life as we know it?’And many more questions on the

37:19

The Weirdness of Water Part 1/2

Curious Cases ·

2021/10/14

“I don’t really understand why water has so many properties on different scales ranging from very large and cosmic to very small quantum and quarky - Could you help by zooming in and out on water to explain what is known about it?" asks Neil Morton in Stirling. Rutherford and Fry learn about the special hydrogen bonds that makes water such an unusual liquid.Quantum physicist Professor Patricia Hunt, at the Victoria University in Wellington in New Zealand explains to Hannah the quantum properties

39:03

The Guiding Hound

Curious Cases ·

2021/10/07

How do guide dogs know where they're going? It's not like their handler whispers in their ear and asks to go to the pharmacy, maybe the toothpaste aisle. So how does it work? asks Charlotte, aged 42. Dogs and humans have gone paw in hand for thousands of years. Historic and genetic evidence shows we’ve shaped each other's existence over millennia. But dogs were only first trained as guides for blind people in the UK 90 years ago. What’s the biology behind this extraordinary partnership? Hannah heads

8:52

We’re back!

Curious Cases ·

2021/09/30

Rutherford and Fry are back in the business of solving your science queries and rooting out the quirks and conundrums of everything that is science!

29:00

More Frytful Scares

Curious Cases ·

2021/02/23

It was a dark and stormy night. 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, which would test our intrepid duo to their very limits. They explore the history of horror, starting with its literary origins in the Gothic fiction classic 'The Castle of

29:50

Back to The Sinister Hand

Curious Cases ·

2021/02/16

Why are some people left-handed, whereas the majority are right handed? Rutherford and Fry revisit The Sinister Hand episodes to further investigate handedness in humans and animals. They considered cockatoos, chimpanzees and Hannah's dog, Molly, to discover that humans are unique, with just one in ten of us being left-handed.They ask if there is an evolutionary reason for just 10% of the human population being southpawsHannah talks to primatologist Prof Linda Marchant from Miami University about

40:31

A Weighty Matter Part 2/2

Curious Cases ·

2021/02/09

The doctors continue their investigation into gravity, and answer Peter Fraser’s question: Is dark matter a proper theory or just a fudge to fit existing 'proper' theories to otherwise inexplicable observations?Whilst scientists are pretty convinced our understanding of gravity is largely correct, there are still some significant gaps. Namely, given the way galaxies are observed to behave, around 85% of the matter that they think should be in our universe is missing. So where – and, as importantly,

43:06

A Weighty Matter Part 1

Curious Cases ·

2021/02/02

The doctors investigate a millennia-old query, as listener Emma in New Zealand asks: ‘How does gravity pull us?’People have been thinking about how gravity works for a very long time. Way longer than when that particular apple almost certainly didn’t fall on the head of Isaac Newton. Cosmologist Andrew Pontzen begins guiding us through our journey by taking us back to the almost entirely incorrect writings of ancient Greeks.We then fast forward past Galileo and Newton, and throw in an extra

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