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    Science

    Discovery

    Explorations in the world of science.

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    Copyright: © (C) BBC 2026

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    Latest Episodes:
    Does Money Make you Mean? Mar 16, 2015
    Show notes

    Jack Stewart heads to Los Angeles, home to many of America's rich and famous, to explore what impact wealth has on our moral behaviour. Hollywood often has plenty to say about the corrupting influence of money, but can science tell us even more.

    Professor Paul Piff of the University of California explains his research, which finds that the richer a person becomes the more selfish, narcissistic and less generous they tend to be. However, not everyone is convinced that the American dream is a recipe for immoral behaviour, with opinions expressed by some rather unusual contributors – straight from the Hollywood Walk of Fame.

    (Photo: Jack Stewart talking to Spiderman, BBC copyright)


    Finding Your Voice Mar 09, 2015
    Show notes

    Comedy performer and broadcaster Helen Keen, explores a rare condition that she herself once suffered from - selective mutism or SM. It is an anxiety disorder that develops in childhood. Those affected by SM can usually speak fluently in some situations, notably a home, but remain silent elsewhere - such as in school, with extended family members, or even parents.

    Their inability to speak is so severe that it has been likened to a phobia of speaking, and is often accompanied by the physical symptoms of extreme anxiety. Selective mutism can be mistaken for shyness or worse, a deliberate refusal to talk. But in reality, these children are desperate to speak, to share their thoughts and ideas, to make friends and to fulfil the expectations of their teachers and parents, in taking an active part in class activities. Yet somehow the words remain "trapped" inside as the anxiety, frustration and fear, builds.

    Though relatively rare, increasing awareness and official recognition of selective mutism in the psychiatric literature has seen an increase in diagnoses. Today, it is estimated to affect about 1 in 150 children in the UK – roughly equivalent to the number of children who are affected by classic autism. The causes of selective mutism are poorly understood but a genetic component is likely as are environmental influences.

    What is clear is that without early intervention, SM can take hold and persist well into adulthood and in rare cases can develop into more acute mental health problems. As Helen knows only too well, it can be a lonely place to grow up in, as the quiet child is so often 'the forgotten child'. It wasn't until Helen was in her early 20s that she managed to break the silence.

    In this programme, Helen meets some of those affected by SM, including parents and former sufferers as well as experts helping children to find their voice again.


    Placebo Problem Mar 02, 2015
    Show notes

    In recent years the term 'placebo effect' - the beneficial effects on health of positive expectations about a drug or some other treatment - has become familiar. It has also been shown to be a powerful aid to medicine. The nocebo effect is simply its opposite - it’s ugly sister. One difference is that its breadth and magnitude have been much less studied. Another is that it may be even more powerful than the placebo effect. It is easier to do harm than good. And this is worrisome because nocebo’s negative influence can be found lurking in almost every aspect of medical life – and beyond. From fears about side effects, to the abrupt bedside manner of unwitting doctors, to the health scares promoted by the mass media, the nocebo effect can create in us, a whole range of symptoms just as powerful as if they were being caused by an active treatment. But what if anything can be done about it? Geoff Watts investigates.

    (Image: Geoff Watts, BBC copyright)


    Throwaway Society 2/2 Feb 23, 2015
    Show notes

    How can manufacturers of the world supply the growing demand for consumer products without breaking the planet’s bank of natural resources? By the middle of the century, there will be 2 billion more people in the world. Based on current trends, there’ll be many more consumers with the money to buy cars, washing machines, mobile phones, fashion – the shopping list goes on…. Discovery looks at new ideas and technologies to enable companies to make more stuff at an affordable environmental cost.

    (Photo: Toyota Production Line. Credit: Getty Images)


    Throwaway Society Feb 16, 2015
    Show notes

    Hundreds of millions of computers, mobile phones and televisions are thrown away every year around the world. In this week’s Discovery Gaia Vince will be looking at the reasons behind this rapidly growing mountain of electronic waste and asking, who is responsible? The manufacturers or the consumers? When our gadgets break, maybe we should just be repairing them. And Gaia attends a party where people are fixing stuff for themselves.

    (Photo: Discarded laptops.)


    The Science of Smell Feb 09, 2015
    Show notes

    Pamela Rutherford explores our neglected sense of smell. How is the brain able to detect and tell apart the countless number of smells it comes across and what happens when the system goes wrong? She finds out how people can lose their sense of smell and why it’s the very strong associations between smell and memory that allow your sense of smell to come back. Not only can people lose their sense of smell and become ‘anosmic’ but in rare cases they can hallucinate smells, so called phantosmia. But why does it happen? Also in the programme why the unique biology of the smell system has led to an amazing medical breakthrough and paved the way for reversing paralysis in people with spinal injuries.

    Image: Smelling the Roses, Getty Images


    The Life Scientific: Richard Fortey Feb 02, 2015
    Show notes

    Richard Fortey found his first trilobite fossil when he was 14 years old and he spent the rest of his career discovering hundreds more, previously unknown to science. He is a Professor of Palaeontology at the Natural History Museum and talks to Jim al-Khalili about why these arthropods, joint-legged creatures which look a bit like woodlice and roamed the ancient oceans for almost 300 million years, are so important for helping us to understand the evolution of life on our planet.

    These new trilobite fossils were found at an exciting time for the earth sciences because of the emergence of plate tectonics. The discovery of communities of trilobite fossils could be used to reconstruct the shape of the ancient world and Richard used the new discoveries to help map the geologically very different Palaeozoic continents and seas.

    He admits that he is a born naturalist, fascinated by all aspects of the natural world (he's a leading expert on fungi) with a powerful drive to communicate its wonders to a wider public. His books and TV programmes on geology, the evolution of the earth, fossils as well as the creatures that survived mass extinctions, have brought him a whole new audience.

    And also he reveals an earlier secret life as a writer of humorous books, all written under a pseudonym.

    (Photo: Richard Fortey. Credit: BBC)


    The Life Scientific: Margaret Boden on Artificial Intelligence Jan 26, 2015
    Show notes

    Maggie Boden is a world authority in the field of artificial intelligence – she even has a robot named in her honour. As research professor of Cognitive Science at the University of Sussex, Maggie has spent a lifetime attempting to answer philosophical questions about the nature of the human mind, but from a computational viewpoint. “Tin cans”, as she sometimes calls computers, are information processing systems, the perfect vehicle, she believes, to help us understand, explore and analyse the mind.

    But questions about the human mind and the human person could never be answered within one single academic subject. So the long career of Maggie Boden is the very epitome of cross-disciplinary working. From medicine, to psychology, to cognitive and computer science, to technology and philosophy, professor Boden has spent decades straddling multiple academic subjects, helping to create brand new disciplines along the way.

    (Photo: Margaret Boden. Credit: BBC)


    Hot Gossip - Part Two Jan 19, 2015
    Show notes

    In the second of two programmes, Geoff Watts continues to explore the science, history and cultural implications of gossip.

    Gossip has a bad reputation and for the most part, and deservedly so. Yet, on-going research appears to suggest that gossip does serve a useful purpose. Not least because our brains may be hard wired for it. Researchers in Boston have used a technique known as binocular rivalry (showing different images to left and right eye at the same time) to suggest that gossip acts as an early warning system, that the brain automatically redirects your attention onto people you've heard negative remarks about. Even though this process happens at a sub-conscious level, your brain is sifting through and weeding out anyone in your surroundings that you may be have good reason to distrust.

    Elsewhere, researchers in Manchester have been analysing what makes gossip memorable and are now scanning subjects brains to see if there are specific gossip networks which light up. From preliminary results it appears gossip activates areas in the brain similar to those that produce feelings of pleasure and reward. Next they plan to scan their subjects' brains as they tweet.

    Perhaps unsurprisingly, in many of these experiments, it is celebrity gossip that tends to produce the largest response. Thanks to what one commentator calls the perfect storm of 24-hour news, reality TV and social media, the all-pervasive celebrity gossip industry exploits our endless appetite for information about people we will never meet. But could even celebrity gossip serve a purpose? Or are we gorging ourselves on trivia whilst ignoring the plight of those closest to us? And can and should anything be done to stem the negative impact of gossip in a digital age?


    Hot Gossip - Part One Jan 12, 2015
    Show notes

    If language elevates us above other animals, why does human society seem to spend so much time gossiping? Perhaps it's because without gossip there would be no society and language would be much less interesting. In the first of two programmes, Geoff Watts explores our fascination with small talk and chit chat. Where did gossip come from, why did it evolve and how has it changed (and changed us) in the digital age?

    If your guilty pleasure is rifling through gossip magazines, then here's a reassuring message: you are merely fulfilling an evolutionary drive. The brain is 'hard-wired' to be fascinated by gossip - which not only helps members of your social group to bond but can also help to police those in the group who transgress. Biologist call them ‘free-riders’ and in large social groups, free-riders can wreak havoc with the society unless they’re policed – by gossip.

    For anthropologist Robin Dunbar, author of the now classic text, Grooming, Gossip and The Evolution of Language, it is not the pearls of wisdom that makes the world go round but everyday tittle tattle: “We are social beings and our world is cocooned in the interests and minutiae of everyday social life. They fascinate us beyond nature”. Gossip, which Dunbar says can be traced back to social grooming in apes, makes up around two-thirds of general conversation according to his research. Without gossip says Dunbar “there can be no society”.

    Of course, historically, culturally, morally gossip has rarely been seen as anything but good. In Judaism where derogatory speech about another person has a special name – ‘Lashon Hara’ or 'evil tongue', it is, says Rabbi Jonathan Sacks, “…regarded it as one of the worst of all sins’. Gossip is said to kill three people, “the one who says it, the one he/she says it about, and the one who listens in. Gossip is not just a sinful act but one that contaminates others”. Nowhere is this more evident than recent cases of internet trolling and cyber bullying. “we need a new ethic” argues Sacks. But are we even capable of changing our nasty habits?

    Producer: Rami Tzabar

    (Photo: A person whispering, Credit: Getty Images)


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