Brian Greene studies the universe at the largest and smallest scales imaginable. When he was just twelve years old, Brian wandered round Columbia University in New York looking for someone to teach him mathematics, with a letter of recommendation from his school teacher. While his mother wanted him to make money, his father encouraged Brian to pursue his passion, which was trying to understand the nature of the universe. He studied physics at Harvard University and won a Rhodes Scholarship to Ox...
Jul 27, 2020•28 min
Jane Goodall, aged 86, reflects on the years she spent living with the wild chimpanzees in Gombe in eastern Tanzania and tells Jim Al Khalili why she believes the best way to bring about change is to ‘creep into people’s hearts’. Jane shot to fame when she appeared on the cover of National Geographic magazine in 1963 and appeared in a documentary film directed by Orson Welles. Her ground breaking observations introduced us to the social and emotional lives of wild chimpanzees and changed our vie...
Jul 20, 2020•28 min
After a long journey, there’s nothing nicer for Katy than climbing into her own bed. It’s often the first major purchase we make when we grow up and leave home. Its significance was not lost on our ancestors. The bed was often the place where societal attitudes to sleep, superstition, sex, and status were played out, sometimes in dramatic form. So where did the bed come from, and what can this everyday object tell us about ourselves? A sleeper in early modern times believed that sleep was akin t...
Jul 13, 2020•26 min
Claudia Hammond and a panel of international experts look at the latest research into Covid-19, the disease caused by the new coronavirus which is sweeping through the world. Our panel of experts discuss how many people make full recoveries but others are finding that life hasn’t yet returned to normal months after infection. In India and Sweden, clinics are being set up to follow survivors of the virus and doctors are discovering that people are having difficulties assimilating what happened to...
Jul 11, 2020•51 min
You may call it the toilet, the loo, the privy, the potty, the can or even the bathroom, but whatever you call it, this everyday object has its roots in Bronze Age Pakistan. It even had a seat! But how did the toilet come to be? Given one third of the world’s population still live without one, how much is our embarrassment around toilet habits to blame? And what scientific developments are underway to help make them truly universal? Water and Sanitation Expert, Alison Parker, from Cranfield Univ...
Jul 06, 2020•28 min
Have you got one of those wine glasses that can hold an entire bottle of wine? Katy Brand does and she’s even used it for wine - albeit because of a sprained ankle, which would have stopped her from hobbling back and forth to the kitchen for refills. But if we skip back a few hundred years, the wine glass was tiny. Footmen brought their masters what was essentially a shot glass. They quaffed back their wine in one. So how did we go from those dinky little things to the gargantuan goblets we have...
Jun 29, 2020•27 min
Claudia Hammond and a panel of international experts look at the latest research into Covid-19, the disease caused by the new coronavirus which is sweeping through the world. We look at vaccines to stop the spread of the coronavirus. And as travel opens up in many countries and visiting family and friends is allowed, how do we navigate this new world while avoiding catching the virus. On the panel are Dr George Hu, clinical psychologist & Section Chief of Mental Health at Shanghai United Fam...
Jun 27, 2020•49 min
The fork is essential. Even camping without one is a false economy, in Katy’s experience. Even a spork - with a spoon at one end and a fork at the other, with a knife formed along one prong - just won’t do. You need both - a fork to steady the meat and a knife to cut it with. So how did the fork come to be so indispensable? We didn’t always love the fork. Public historian, Greg Jenner, reveals how it was abandoned for the chopstick in Ancient China, and greeted with scorn in Western Europe when ...
Jun 22, 2020•28 min
Katy Brand loves a high heel. Once known by friends and family for her ‘shoe fetish’, her dad even gave her a ceramic heel that could hold a wine bottle at a jaunty angle. These days, Katy’s cherished heels from her torture days live in her cupboard. She has traded the pain for the statement trainer. But their art, history and construction still fascinate her. So what is it about the high heel that has made it stand the test of time? With the help of resident public historian, Greg Jenner, Katy ...
Jun 15, 2020•28 min
Claudia Hammond and a panel of international experts look at the latest research into Covid-19, the disease caused by the new coronavirus which is sweeping through the world. As the disease spreads how is South America handling the pandemic? How are the indigenous people of the Amazon protecting themselves? We also look at the aerodynamics of infection - if the air in an ITU room is changed 12 times and the virus still lingers what hope do offices have? On the panel are Professor Lydia Bourouiba...
Jun 13, 2020•50 min
What is the most personal item you own - one you don’t want anyone else using? For Katy Brand it’s her toothbrush. So how did the toothbrush become one of life’s essentials? With the help of resident public historian of Horrible Histories fame, Greg Jenner, Katy goes back to ancient times, when the toothbrush was merely a stick. But the brush, as we know it, only came into being much later when a convict spied a broom in his cell and had a bright idea. But how has ingenuity and innovation shaped...
Jun 08, 2020•28 min
Andrea Sella, Professor of Inorganic Chemistry at University College London, celebrates the art and science of the chemical elements. Today he looks at helium. Helium is a finite resource here on Earth and many branches of science need it. Doctors need it to run MRI machines to diagnose tumours and engineers test rockets for leaks with it. The story of helium starts with a solar eclipse in 1868. The event had many astronomers' eyes fixed on the sun. Two astronomers, nearly simultaneous and indep...
Jun 01, 2020•26 min
Claudia Hammond and a panel of international experts look at the latest research into Covid-19, the disease caused by the new coronavirus which is sweeping through the world. As the disease spreads how is sub-Saharan Africa handling the pandemic? We also look at tests – how accurate are they? Should we be testing ourselves at home? On the panel are Folasade Ogunsola, Professor of Clinical Microbiology at the University of Lagos in Nigeria, Ravi Gupta, Professor of Microbiology at the University ...
May 30, 2020•49 min
Andrea Sella, Professor of Inorganic Chemistry at University College London, celebrates the art and science of the chemical elements. Today he looks at aluminium and strontium, elements that give us visual treats. At the time of Emperor Napoleon the Third in 19th century France aluminium was more valuable than gold and silver. The Emperor liked the metal so much he had his cutlery made out of it. But once a cheaper way was discovered to extract aluminium it began to be used for all kinds of obje...
May 25, 2020•26 min
Andrea Sella, Professor of Inorganic Chemistry at University College London, celebrates the art and science of chemical elements. In this episode he looks at two elements we have valued for millennia – gold and silver. Nina Gilbey at the London Jewellery Workshop teaches him how to work the metal and make a silver ring, and Rupert Cole, Curator of Chemistry at the Science Museum, shows him the handiwork of silversmiths who fashioned an elaborate microscope for King George the Third and a silver ...
May 18, 2020•28 min
Claudia Hammond and her panel of scientists and doctors analyse the latest science on the coronavirus and answer the audience’s questions on the impact of the pandemic. Dr Lucy van Dorp of UCL explores the genetics of the virus and what they can tell us about how far it’s spread and how is it evolving. Can we be sure that vaccines being developed now will still work in the future? Professor Guy Thwaites of the Oxford University Clinical Research Unit in Vietnam explains how the country has succe...
May 16, 2020•51 min
Whilst most men become fathers, and men make up roughly half the parental population, the vast majority of scientific research has focused on the mother. But studies have started to reveal the impact of fatherhood on both dads themselves and on their children. We're seeing how fathers play a crucial role in children's behaviour, happiness, and even cognitive skills. Oscar Duke, a doctor, new dad and author of How To Be A Dad, discovers how pregnancy, birth and childcare affect the father, bringi...
May 13, 2020•27 min
Lindsey Fitzharris tells the story of Ignaz Semmelweiss, the hand washer. In a world that had no understanding of germs, he tried to apply science to halt the spread of infection. Ignaz Semmelweis observed that many young medical students at his hospital in Vienna went directly from an autopsy, still covered in contaminated dead flesh, to attend pregnant women. Could this be the reason for such high maternal mortality rates from conditions like puerperal fever? Believing that the disease was cau...
May 04, 2020•28 min
Now that more than half the population of the world has been living for a time in lockdown, Claudia Hammond and her panel of psychologists and psychiatrists answer the audience’s questions on the impact of the pandemic on our mental health. Dr George Hu, clinical psychologist & Section Chief of Mental Health at Shanghai United Family Pudong Hospital, tells us what he’s seen in China, as it comes out of lockdown. Professor Vikram Patel gives us a picture of mental health in India, which went ...
May 02, 2020•50 min
The pictures coming in from East Africa are apocalyptic. Billions of locusts hatching out of the wet ground, marching destructively through crops, and launching into flight in search of new terrains. "This is certainly the worst situation we have seen in the last 15 years," FAO locust specialist Keith Cressman tells Discovery. And in East Africa there has been nothing like this for 70 years. As the region braces itself for another cycle of egg laying and hatching, Roland Pease hears from the sci...
Apr 27, 2020•27 min
Anne Magurran started her career as an ecologist counting moths in an ancient woodland in northern Ireland in the 1970s, when the study of biological diversity was a very young science. Later she studied piranas in a flooded forest in the Amazon. Turning descriptions of the natural world into meaningful statistics is a challenge and Anne has pioneered the measurement of bio-diversity. It’s like an optical illusion, she says. The more you think about bio-diversity the more difficult it is to defi...
Apr 20, 2020•27 min
Claudia Hammond and a panel of international experts look at the latest research into Covid-19, the disease caused by the new coronavirus which is sweeping through the world. As the disease spreads, younger people have perhaps not been getting the attention they deserve. How will this pandemic impact young people and do they feel included in government messaging? As lockdowns are lifted in China – how can they prepare for what comes next? And country updates on the USA and Kenya. On the panel ar...
Apr 18, 2020•49 min
How do you tell if someone is lying? When Richard Wiseman, Professor of the Public Understanding of Psychology at the University of Hertfordshire, conducted a nationwide experiment to identify the tell-tale signs, the results were surprising. If you want to spot a liar, don’t look at them. Listen to what they say and how they say it. in If you want to distinguish fact from fiction, radio, not TV or video is your friend. Visual cues distract us from what is being said and good liars can control t...
Apr 13, 2020•27 min
Not so long ago, all batteries were single use. And solar power was an emerging and expensive technology. Now, thanks to rechargeable batteries, we have mobile phones, laptops, electronic toys, cordless power tools and other portable electronic devices. And solar power is reducing our reliance on carbon-based fossil fuels. None of this would have been possible without a deep understanding of the chemistry of materials that have particular properties – the ability to turn sunlight into energy for...
Apr 06, 2020•27 min
International experts discuss the latest research into Covid-19
Apr 04, 2020•49 min
Elizabeth Fisher, Professor of Neurogenetics at University College London, spent 13 years getting her idea – finding a new way of studying genetic disorders – to work. She began her research career at a time, in the 1980s, when there was an explosion of interest and effort in finding out what genes did what, and which of them were responsible for giving rise to the symptoms of various neurodegenerative conditions. Elizabeth has been particularly interested in those in which there are chromosomal...
Mar 30, 2020•27 min
Neuroscientist Adrian Owen has spent much of his career exploring what he calls ‘the grey zone’, a realm of consciousness inhabited by people with severe brain injuries, who are aware yet unable to respond to those around them. It's this inability to respond which has led doctors to conclude that they are unaware. In the late 1990's, Adrian started to question the assumption that they lacked awareness and a chance discovery set him on a novel path of enquiry - could some of these patients be con...
Mar 24, 2020•27 min
A panel of international experts take a global look at the science of Covid-19. We hear about vaccines, treatments, strategies to contain the virus and the role of big data.
Mar 21, 2020•49 min
Professor Martha Clokie tells Jim Al-Khalili how she found viruses that destroy antibiotic-resistant bugs by looking in stool samples, her son's nappies and estuary mud. Could viruses improve our health where antibiotics have failed? As a child, Martha Clokie spent a lot of time collecting seaweed on Scottish beaches. She loves plants and studied botany for many years. But mid-career, she learnt about all the viruses that exist in nature. We tend to focus on the viruses that make us ill but ther...
Mar 16, 2020•35 min
Jim Al-Khalili finds out why Demis Hassabis wants to create artificial intelligence and use it to help humanity. Thinking about how to win at chess when he was a boy got Demis thinking about the process of thinking itself. Being able to program his first computer (a Sinclair Spectrum) felt miraculous. In computer chess, his two passions were combined. And a lifelong ambition to create artificial intelligence was born. Demis studied computer science at Cambridge and then worked in the computer ga...
Mar 10, 2020•26 min
