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Discovery

BBC World Service

Explorations in the world of science.

science

All Episodes

27:48

The colour conundrum

Discovery ·

2022/06/06

The world is full of colour! But, listener Maya Crocombe wonders ‘how do we see colour and why are some people colour blind?’Dr Rutherford and professor Fry set out to understand how special light-sensitive cells in our eyes start the process of colour perception, why people sometimes have very different experiences of colour and whether, in the end, colour is really just ‘in our heads’.Dr Gabriele Jordan from Newcastle University explains why lots of men struggle to discriminate between certain

27:47

The Turn of the Tide

Discovery ·

2022/05/30

Mathematician Hannah Fry and geneticist Adam Rutherford investigate your everyday science queries. Today, they get stuck into two questions about tides. Lynn Godson wants to know why isn’t high tide at the same time at all points around the coast? Whilst Tim Mosedale asks, could we ever harness tidal power commercially? Did you think tides are caused by the pull of the Moon? And that they come in and out twice a day? Well, yes, that’s true but it turns out there’s so much more to it than that,

50:08

The Evidence: The nature of mental health

Discovery ·

2022/05/28

Today The Evidence goes green as Claudia Hammond and her panel of experts discuss plant power, how nature and the natural environment affect our mental health.Produced in collaboration with Wellcome Collection and recorded in front of a live audience in the Reading Room at Wellcome Collection in London, the programme addresses that widely-held view, even intuition, that plants and nature directly impact on our emotional wellbeing. As always, Claudia and her panel of experts are interested in the

27:37

The Shocking White Hair

Discovery ·

2022/05/23

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

27:50

Surprising symmetries

Discovery ·

2022/05/16

Two eyes, two arms, two legs - we are roughly symmetrical on the outside, but inside we are 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

27:38

The weird waves of wi-fi

Discovery ·

2022/05/09

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

27:47

The Mystery of the Teenage Brain

Discovery ·

2022/05/02

‘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

27:38

Wild Inside: The Ocean Sunfish

Discovery ·

2022/04/25

Ben Garrod and Jess French get under the skin of Mola mola the world's largest bony fish to unravel this bizarrely shaped predator's ability to swim to a huge range of depths.Producer Adrian Washbourne

27:26

Wild Inside: The Burmese Python

Discovery ·

2022/04/18

Ben Garrod and Jess French delve deep inside the predatory Burmese Python to examine its extraordinary body plan that enables it to catch, constrict and consume huge prey whole.Producer Adrian Washbourne

27:19

Wild Inside: Jungle royalty - the Jaguar

Discovery ·

2022/04/11

Wild Inside embarks on something we hardly ever witness – a look inside some of nature’s most wondrous animals. Its a rare chance to delve deep into some enigmatic and very different wild animals – from a reptile, to a mammal to a fish – unravelling the intricate internal complexity inside three of the most amazing animals ever to evolve. What makes the ultimate predator? What are the keys to successful survival in an ever-changing environment? Whilst we’ve gained a lot by observing their behaviour

50:54

The Evidence: War trauma and mental health

Discovery ·

2022/04/02

War and conflict turns lives upside down and millions of adults and children witness atrocities, lose loved ones and often lose their homes and even their countries. The psychological and emotional suffering can continue long after the immediate threat to their life has gone. One in every five people touched by war – that’s 20% - will have a mental health problem that needs help and one in twenty or 5% will be severely affected. As the humanitarian crisis deepens in the Ukraine with millions under

27:24

The Life Scientific: Steve Brusatte on the fall of...

Discovery ·

2022/03/28

Steve Brusatte analyses the pace of evolutionary change and tries to answer big questions. Why did the dinosaurs die out and the mammals survive? How did dinosaurs evolve into birds? If you met a Velociraptor today you’d probably mistake it for a large flightless bird, says Steve. His intense interest in T. rex, Triceratops and all the other dinosaur species developed when he was a teenager and continues to this day. More recently, however, he’s focussed on the long history of mammals.For hundreds

27:48

The Life Scientific: Shankar Balasubramanian on...

Discovery ·

2022/03/21

Sir Shankar Balasubramanian is responsible for a revolution in medicine. The method he invented for reading, at speed, the unique genetic code that makes each one of us who we are, is ten million times faster than the technology that was used in the human genome project at the turn of the century. What’s more, it can be done much more cheaply than before and on a desktop machine. And it’s transforming healthcare, by helping us to understand the genetic basis of many diseases (particularly cancers)

27:18

Tooth and Claw: Wolves

Discovery ·

2022/03/14

We look at wolves and the programme is a little different, because the predator we’re talking about is very much a predator of our imaginations. Wolves are the spirit of the wilderness, but they also symbolize the darker side of human nature, and many myths and legends surround the wolf from all around the world. Our fear of the wolf may be primeval, but it is still very much alive and well. The idea that wolves could be reintroduced in Scotland led to headlines about the British Queen's pet corgis

27:04

Tooth and Claw: Army ant

Discovery ·

2022/03/08

The army ant might be small enough to squash under foot but, make no mistake, it’s a formidable predator. When they club together in their thousands they are a force to be reckoned with. Picture a tiger, comprised of hundreds of thousands of tiny ant-sized units, prowling through the forest and you start to get the idea. They’ll take down anything in their path, from spiders and scorpions to chickens that can’t escape them. There are even grisly stories of African army ants attacking people. But

27:03

Tooth and Claw: Venomous snakes

Discovery ·

2022/02/28

Adam Hart discovers why rattlesnakes make good mothers and how deadly their venom is. There are over 600 different species of venomous snakes around the world with fearsome fangs delivering deadly venoms. Up to a third of the world’s population lives in fear of snakes, but are these reptiles misunderstood? And while Adam living in the UK where there are very few snakes, finds them fascinating, we shouldn’t forget that an estimated 7,400 people every day are bitten by snakes, and somewhere between

49:56

The Evidence: Drug-resistant superbugs

Discovery ·

2022/02/26

Today, Claudia Hammond and her panel of experts focus on what’s been called “the silent pandemic”, the threat to modern medicine of anti-microbial resistance or AMR.Infections are increasingly resistant to live-saving drugs like antibiotics and many believe the very future of modern medicine is hanging in the balance.In a series produced in collaboration with Wellcome Collection, this edition of The Evidence is recorded in front of a live audience in the Reading Room at Wellcome in London.Just last

27:25

Tooth and claw: Spotted hyena

Discovery ·

2022/02/21

Cursed as a worthless scavenger and cast as villainous cowardly sidekicks in Disney’s The Lion King, the spotted hyena is one of the world’s most misunderstood of all predators. It may scavenge at night on a giant rubbish tip on the outskirts of Mekelle in Ethiopia, but it earns it’s top predator status when it takes down its prey in Kenya’s Masai Mara National Reserve. Adam Hart and guests polish up the spotted hyena’s tarnished reputation.Professor Kay Holekamp, a behavioural ecologist at

37:22

Deep sea exploration

Discovery ·

2022/02/14

UCL oceanographer Helen Czerski explores life in the ocean depths with a panel of deep sea biologists. They take us to deep ocean coral gardens on sea mounts, to extraordinary hydrothermal vent ecosystems teeming with weird lifeforms fed by chemosynthetic microbes, to the remarkable biodiversity in the muds of the vast abyssal plains.Helen's guests are Adrian Glover of the Natural History Museum in London, Kerry Howell of Plymouth University and Alex Rogers, scientific director of REV Ocean.They

42:05

A new space age?

Discovery ·

2022/02/07

In 2021, Captain James Kirk, aka William Shatner, popped into space for real for a couple of minutes, transported by space company Blue Origin's tourist rocket New Shepard. Elon Musk's Space X ferried more astronauts and supplies between Earth and the International Space Station, using its revolutionary reusable launchers and Dragon spacecraft. On Mars, the latest Nasa robot rover landed and released an autonomous helicopter - the first aircraft to fly on another planet.This year promises even more

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