PODCAST

Curious Cases

BBC Radio 4

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

science

All Episodes

25:32

The Alien Enterprise Part 1

Curious Cases ·

2018/08/10

Mike Holcombe from Largs in Scotland asks, "How do we look for alien life and what are we expecting to find?"In the first of two episodes on the search for ET, Hannah and Adam look for life inside the Solar System. How do we define life and why we obsessed with finding it on Mars? Or should we be looking for space squid on Europa instead?Features interviews with planetary scientist Monica Grady from the Open University, senior astronomer Seth Shostak from SETI and zoologist Matthew Cobb from the

27:23

The Dawn Chorus

Curious Cases ·

2018/06/01

"Winter is finally over and the birds are all singing their hearts out at dawn. What's all the noise about? And why are some songs so elaborate?" asks Tony Fulford from Ely in Cambridgeshire. We find out how birds produce multiple notes at once, which one has the widest repertoire of songs, and why males like to show off quite so much. Plus, we talk to researcher Lauryn Benedict about the project which aims to solve the mystery of why female birds sing - www.femalebirdsong.org.Featuring interviews

25:29

The Lucky Number

Curious Cases ·

2018/05/25

"My boss insists that if you choose the same numbers in the lottery each time your probability of winning will increase. Is this true?" asks Vince Scott from Edinburgh. National lotteries are played in more than 80 countries worldwide, but can you increase your chances of winning? Hannah consults statistician Jen Rogers to discover the best way to select your lucky numbers. Adam talks chance and luck with David Spiegelhalter and hears how the field of probability began with a philandering gambling

25:58

The Déjà Vu

Curious Cases ·

2018/05/18

"Do we know what causes déjà vu?" asks Floyd Kitchen from Queenstown in New Zealand. Drs Rutherford and Fry investigate this familiar feeling by speaking to world-leading reseacher Chris Moulin from the University of Grenoble in France and memory expert Catherine Loveday from Westminster University. Plus, they find out why early investigations classed déjà vu as a type of paranormal phenomenon.For most of us, it's a fleetingly strange experience, but for some people it can become a serious problem

27:44

The Human Instrument

Curious Cases ·

2018/05/11

"What happens to the human voice as we age? If I hear a voice on the radio, I can guess roughly how old they are. But singer's voices seem to stay relatively unchanged as they age. Why is this?" All these questions were sent to curiouscases@bbc.co.uk by Jonathan Crain from Long Island in New York.The Doctors discover how the human voice is produced and listen to how our voice sounds when it emerges from our vocal cords. Acoustic engineer Trevor Cox, author of 'Now You're Talking', explains why

27:07

The Fifth Dimension

Curious Cases ·

2018/05/04

"What is the fifth dimension?" asks Lena Komaier-Peeters from East Sussex.Proving the existence of extra dimensions, beyond our 3D universe, is one of the most exciting and controversial areas in modern physics. Hannah and Adam head to CERN, the scientific cathedral for quantum weirdness, to try and find them.Theoretical physicist Rakhi Mahbubani explains why we think that dimensions beyond our own might exist. Adam meets Sam Harper, who has spent 14 years hunting for an elusive particle called the

30:55

The Cosmic Egg

Curious Cases ·

2018/03/02

"How do we measure the age of the Universe?" asks Simon Whitehead.A hundred years ago this wouldn't even have been considered a valid question, because we didn't think the Universe had a beginning at all. Even Einstein thought that space was eternal and unchanging.This is the tale of how we discovered that the Universe had a beginning, and why calculating its age has been one of the greatest challenges in modern astronomy. We also uncover the mysterious dark energy that pervades the cosmos and

23:54

The Atomic Blade

Curious Cases ·

2018/02/28

"What makes things sharp? Why are thinner knives sharper? What happens on the molecular level when you cut something?" All these questions came from Joshua Schwartz in New York City.The ability to create sharp tools allowed us to fashion clothing, make shelters and hunt for food, all essential for the development of human civilisation, according to materials scientist Mark Miodownik.We hear from IBM scientist Chris Lutz, who has used one of the sharpest blades in the world to slice up individual

29:06

The Tiniest Dinosaur

Curious Cases ·

2018/02/23

"What is the tiniest dinosaur?" asks younger listener Ellie Cook, aged 11. Today's hunt takes us from the discovery of dinosaurs right up to the present day, which is being hailed as a 'golden age' for palaeontology. One new species of dinosaur is currently being unearthed on average every single week. But what's the smallest dino? And what can size reveal about the life of extinct animals?Hannah goes underground at the Natural History Museum to look through their vaults in search of the tiniest

22:35

The Enigma of Sex, Part 2

Curious Cases ·

2018/02/16

The second instalment in our double bill on the science of sex, answering this question from Robert Turner, a Curio from Leeds: "Why do we only have two sexes?"Drs Rutherford and Fry look for anomalies in the animal kingdom that go beyond the traditional mechanics of human reproduction. Biologist and author Carin Bondar describes some of the wild and somewhat disturbing ways other animals like to do it. Take the hermaphrodite sea slug who races to stab its penis into its partner's brain during sex,

24:43

The Enigma of Sex, Part 1

Curious Cases ·

2018/02/09

"Why do we only have two sexes and are there any anomalies in the animal kingdom?" asks Robert Turner from Leeds. From reptilian virgin births to hermaphrodite sea slugs, over the next two episodes Drs Rutherford and Fry examine the weird ways other creatures reproduce.In this first instalment, they tackle what's been called 'the hardest problem in evolutionary biology' - why does sex exist? Why aren't we all one single sex that clone ourselves to produce offspring? It makes perfect evolutionary

24:15

Goldfinger's Moon Laser

Curious Cases ·

2018/01/12

"The other day I was watching the James Bond film Goldfinger. He boasts a laser powerful enough to project a spot on the Moon. Is this possible? If so, just how powerful would such a laser need to be?" This curious question was sent to curiouscases@bbc.co.uk by Eddie Griffith from Hinckley in Leicestershire.Adam visits one of the most powerful lasers in the world, the Gemini Super Intense Laser at the aptly named Rutherford Appleton Laboratory in Didcot, Oxfordshire. Plasma physicist Ceri Brenner

25:34

The Curious Face Off

Curious Cases ·

2018/01/05

"Are machines better than humans at identifying faces?" asks the excellently named Carl Vandal.Today's Face Off leads our intrepid detectives to investigate why we see Jesus on toast, Hitler in houses and Kate Middleton on a jelly bean.Face perception psychologist Rob Jenkins from the University of York explains why we're so good at spotting familiar faces, like celebrities. Plus, Franziska Knolle from the University of Cambridge discusses her face recognition study involving Barack Obama and a

22:50

The Cosmic Speed Limit

Curious Cases ·

2017/12/29

"We often read that the fastest thing in the Universe is the speed of light. Why do we have this limitation and can anything possibly be faster?" Ali Alshareef from Qatif in Saudia Arabia emailed curiouscases@bbc.co.uk with this puzzling problem.The team grapples with Einstein's Special Theory of Relativity, with help from cosmologist Andrew Pontzen and a British train, travelling somewhat slower than the speed of light.Plus physicist and presenter Jim Al-Khalili describes how he nearly lost his

30:02

The Dreadful Vegetable

Curious Cases ·

2017/12/22

"Why don't children like vegetables?" asks Penny Young from Croydon, and every parent ever.This week Rutherford and Fry dig into the science of taste and discover that there may be more to this question than meets the eye. Children and adults have a different taste experience when they eat the same foods. When you're young, foods can taste saltier and more bitter. What's more, as Jackie Blisset, Professor of Childhood Eating Behaviour explains, there are even evolutionary reasons why toddlers avoid

25:05

The Baffled Bat

Curious Cases ·

2017/12/15

"Why don't thousands of bats in a cave get confused? How do they differentiate their own location echoes from those of other bats?" This puzzling problem was sent in to curiouscases@bbc.co.uk by Tim Beard from Hamburg in Germany.Since ecolocation was first discovered, this question has perplexed biologists. Hannah turns bat detective to try and track down these elusive creatures at The Queen Elizabeth Olympic Park in East London. This is where zoologist Kate Jones from University College London is

24:15

Adventures in Dreamland

Curious Cases ·

2017/09/29

"Why do we dream and why do we repeat dreams?" asks Mila O'Dea, aged 9, from Panama.Hannah and Adam delve into the science of sleep. From a pioneering experiment on rapid eye movement sleep, to a brand new 'dream signature' found in the brain, they discover how scientists are investigating our hidden dreamworld.Featuring sociologist Bill Domhoff from the University of California Santa Cruz, sleep psychologist Mark Blagrove from the University of Swansea, and neurologist Francesca Siclari from the

28:58

The Shocking Surprise

Curious Cases ·

2017/09/22

Why do we get static shocks? Jose Chavez Mendez from Guatemala asks, "Some years ago, in the dry season, I used to be very susceptible to static electricity. I want to know - why do static shocks happen?"The team uncover some slightly unethical science experiments on static electricity from the 1700s. Hannah Fry uses a Leyden Jar to demonstrate how static electricity works with help from her glamorous assistant, Adam Rutherford. Spoiler Alert: it doesn't end well for Adam.They discover what makes

24:55

The Sticky Song

Curious Cases ·

2017/09/15

Why do songs get stuck in our heads? And what makes some tunes stickier than others? Drs Rutherford and Fry investigate 'earworms', those musical refrains that infect our brains for days. Every morning 6Music DJ Shaun Keaveney asks his listeners for their earworms, and Hannah finds out which tunes keep coming back.Adam asks Dr Lauren Stewart, from Goldsmiths University, to reveal the musical features that make some songs catchier than others. And they find out why, in times of crisis, an earworm may

19:58

The Polar Opposite

Curious Cases ·

2017/09/08

No one knows why the Earth's magnetic North and South poles swap. But polar reversals have happened hundreds of times over the history of the Earth.So, asks John Turk, when is the next pole swap due and what will happen to us?Hannah turns to astronomer Lucie Green from Mullard Space Science Laboratory to discover how the earth's magnetic field protects us from the ravages of space. And Adam consults geophysicist Phil Livermore from the University of Leeds to find out if, and when, we're facing a

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