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BBC Radio 4

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

The Curious Cases of Rutherford & Fry

Hannah Fry and Dara Ó Briain return to Curious Cases HQ for a brand-new series. And curios, there’s a lot to unpack! Coming soon to BBC Sounds.

Coming soon... a brand new series of Curious Cases

The term 'bird brain' might suggest our feathered friends are stupid, but Hannah and Dara learn it's completely untrue. They play hide and seek with a raven called Bran, and hear how his behaviour changes depending on his mood. Corvid expert Nicola Clayton explains these creatures are actually cleverer than the average 8-year-old, and can learn how to choose specific tools for different scenarios. And neurobiologist Andreas Nieder tells them that while crows evolved totally different brains from humans - 300,000 years apart - they might just be capable of the same type of intelligence. 

Contributors: 

Bran the raven 
Lloyd Buck, bird handler 
Professor Nicky Clayton, University of Cambridge 
Professor Andreas Nieder, University of Tubingen 

Producer: Marijke Peters 
Executive Producer: Alexandra Feachem 

A BBC Studios Audio Production

Clever Crows

Could you ever trade memories with someone else? Fancy downloading the experience of landing on the moon, winning an Oscar or performing at Glastonbury? Listener Adam wants to know, and Hannah Fry and Dara Ó Briain are on the case.

With expert insights from Professor Chris French and Professor Amy Milton, they dive into the mind’s tendency to blur the lines between reality and imagination - often embellishing, distorting, or downright making stuff up.

Discover how memory conformity makes us “see” things like spoons being bent by paranormal forces, how scientists can implant artificial memories in mice, and hear Al Hopwood’s hilariously vivid tales of things that definitely never happened. Chris even spills the secrets of how to deliberately plant false memories in others (don’t try this at home!).

From rewiring trauma to curing phobias, the potential of memory manipulation is both exciting and unnervingly sci-fi. Prepare to question everything you think you remember.

Contributors:

Amy Milton - Professor of Behavioural Neuroscience at the University of Cambridge
Chris French - Professor of Anomalistic Psychology at Goldsmiths University 
Al Hopwood - Artist, writer and curator 

Producer: Ilan Goodman
Executive Producer: Alexandra Feachem
A BBC Studios Audio Production

Memory Swap

Can you slow down time by hurtling through space at breakneck speed? Could listener Saskia’s friend - currently one year older - end up the same age as her if he went fast enough? It sounds bananas, but it’s all part of Einstein’s mind-warping theory of relativity.

With expert copilots Professor Sean Carroll and Dr. Katie Clough, Hannah Fry and Dara Ó Briain embark on a cosmic roller coaster through space and time. They uncover why GPS satellites - whizzing around Earth at 14,000 km/h - need to account for time bending, why penthouse dwellers age faster than those on the ground floor, and, most importantly, why clowns on trains might just hold the key to understanding modern physics.

Contributors:

Katy Clough - Research Fellow at Queen Mary University of London
Sean Carroll - Professor of Natural Philosophy at Johns Hopkins University
Peter Buist - Manager of the Galileo Reference Centre
Richard Dyer - PhD student at the University of Cambridge

Producer: Ilan Goodman
Executive Producer: Alexandra Feachem
A BBC Studios Audio Production

Clowns in Spacetime

How big can animals really get before they collapse under their own weight or run out of snacks? Could a 12-foot comedian survive their first punchline without snapping in half? Listener Andrew sends Hannah and Dara on a deep dive into the science of supersized species.

With evolutionary biologists Ben Garrod and Tori Herridge as their guides, they explore the quirky rules of scaling: why giant bones need air pockets, how pressure stockings aren’t just stylish but essential, and why massive creatures have to choose between inefficient chewing or letting dinner ferment in their cavernous stomachs.

Discover why scaling up a mouse would turn it into a blood-boiling disaster and learn the curious logic behind whether the meat bear should eat the two meat dogs, or vice versa (it’s a maths thing…you’ll have to listen). Oh, and here’s the weird constant: whether you’re a mouse or an elephant, everyone takes roughly the same time to pee!

Join Hannah and Dara for a colossal romp through the wild world of ancient giants and the gross super blobs of the (possible) future. 

Contributors:

Tori Herridge - Senior Lecturer in evolutionary biology at the University of Sheffield
Ben Garrod - Professor of Evolutionary Biology and Science Engagement at the University of East Anglia
Martin Sander - Professor of Palaeontology at the University of Bonn

Producer: Ilan Goodman
Executive Producer: Alexandra Feachem
A BBC Studios Audio Production

Colossal Creatures

Think of a shark and you'll probably conjure up images of Jaws, but it turns out their skin is also covered in tiny teeth. Hannah and Dara investigate the incredible properties of these so-called dermal denticles, to find out whether they could be replicated at a nanoscale to increase vehicle speeds. They learn that while sharks might look like they have beautifully sleek surfaces, up close their skin is covered in something extremely rough and textured, a property that helps them swim up to 12 percent faster. And it's already inspiring airlines to design ultra-thin films that can reduce drag and increase efficiency.

Contributors

Dr Jess Wade
Professor Manish Tiwari

Producer: Marijke Peters
Executive Producer: Sasha Feachem

A BBC Studios Audio Production

Nano Sharks

Why do we giggle, snort, and bust a gut laughing? Is it just humans being weird, does it serve some higher function or do other animals crack up too? And, okay, Dara is a comedian, but has he ever really made anyone laugh, like properly? 

With help from Professor Greg Bryant and Professor Sophie Scott, they dive into the science of LOLs, exploring how laughter bonds us, eases stress, and even spices up flirting. They uncover the difference between genuine belly laughs and those polite chuckles that pepper everyday interactions. 

Contributors:

Sophie Scott - Professor of Cognitive Neuroscience at UCL
Greg Bryant - Professor of Communication at UCLA 
Betty La France - Professor or Communication, Northern Illinois University 

Producer: Ilan Goodman
Executive Producer: Alexandra Feachem
A BBC Studios Audio Production

Chuckle, Snigger and LOL

Ever wondered why some people are mosquito magnets and other people barely get bitten? Hannah and Dara grapple with the question of whether these insects are evil or genius, discovering how they’re experts at finding blood when they’re hungry, even using a specially designed syringe to suck it out. But when Professor Leslie Vosshall tells them some people are more than 100 times likely to be attacked than others, the pair start wondering which one of them is more attractive? So they put the science to the test, and reluctantly agree to send their stinky socks to Professor Sarah Reece. She reveals that one of them smells extra special to these annoying little animals, possibly because of their cheesy feet. But can you guess who?

Contributors:
Professor Sarah Reece
Professor Leslie Vosshall
Professor John Pickett

Producer: Marijke Peters
Executive Producer: Alexandra Feachem
A BBC Studios Audio Production

Don't Bite Me!

The team test the theory that you can use the weather to predict pain, separating science fact from fiction. It's an area with a huge amount of conflicting research, but one man who has investigated this is Professor Will Dixon, who explains that low pressure could be causing people's joints to ache more. Dara and Hannah are intrigued to hear our genes may also be responding to changes in temperature and hear how we might be pre-programmed to produce more inflammation during wintertime to fight off bugs - which has the unfortunate side effect of making other some conditions worse. But don't despair! The pair find out 21 degrees is the optimum temperature for health and wellbeing - a perfect English summer day.

Contributors:

Dr Chris Wallace
Professor Will Dixon
Professor Trevor 
Professor Trevor Harley

Producer: Marijke Peters
Executive Producer: Alexandra Feachem

A BBC Studios Audio Production

Aches and Rains

From mouldy bread to athlete’s foot, fungi don’t exactly scream “home improvement.” But what if this misunderstood kingdom is the secret to the sustainable materials of the future?

Listener Alexis - definitely not a gnome - wants to know how much of our homes we could build with fungi. Professor Katie Field describes how the mushroom is the just tip of the iceberg - it’s the network of thread-like filaments called mycelium where fungi really do their best work. Architect Phil Ayers explains how fungi, like yeast in bread, can bind waste products into firm, MDF-like blocks. And while we’re not constructing skyscrapers with mushrooms just yet, it turns out fungi-based materials are already making waves in interior design. Think sound-absorbing wall panels or insulation that’s both eco-friendly and chic.

And here’s a cool one: mushroom leather! Using discarded stalks from mushroom farms, one company is crafting strong, flexible material for trainers, handbags, and even car dashboards. Move over, cows - mushrooms are pushing their way up.

Oh, and NASA? They’re dreaming big with fungi too - to grow habitats in space. From mould...to the moon! 

Contributors: 

Katie Field - Professor of Plant-Soil Processes at the University of Sheffield
Phil Ayres - Professor of Biohybrid Architecture at the Royal Danish Academy
Patrick Baptista Pinto - co-founder of Really Clever
Maurizio Montalti - Co-founder and Chief Mycelium Officer of SQIM / MOGU
Lynn Rothschild - Senior Research Scientist at NASA Ames research centre

Producer: Ilan Goodman
Executive Producer: Alexandra Feachem
A BBC Studios Audio Production

Clever Crows

Lyssna när som helst, var som helst

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