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BBC Inside Science

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A weekly programme that illuminates the mysteries and challenges the controversies behind the science that's changing our world.

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Folgen von BBC Inside Science

653 Folgen
  • Folge vom 25.02.2016
    UK science and the EU, Sex of organs, Artificial colon, Gorillas call when eating
    Britain faces a referendum on whether to leave Europe. Science, and scientists, often cross borders in collaborations, so what would the implications be for a British exit from the EU? The House of Lords Science and Technology Committee have an ongoing inquiry into how EU membership influences British science. Inside Science condenses the pertinent points. The stem cells that make up our organs 'know' whether they are 'male' or 'female', and that this sexual identity could influence how they grow and behave. Dr Irene Miguel-Aliaga, at the MRC Clinical Sciences Centre at Imperial College London, wanted to ask a very basic question: whether it is just the cells of the sex organs of a fully developed organism that 'know' their sexual identity, or whether this is true of cells in other organs too - and whether that matters. It was previously thought that non-reproductive organs are the same in both sexes, and function differently because of the differences in circulating hormones, but her new research suggests that cells know their sex.At Birmingham University, chemical engineers have built a working prototype of an artificial human colon, the first of its kind. The colon does the last bit of moving your food out of your body, mixing it, squeezing the last few nutrients and excess water out of it. The team want to use it to measure drug delivery to the colon.Talking with your mouth full is an unattractive trait, but for other, non-human, great apes it is a normal part of meal time. The noises recorded by a team at the Max Planck Institute for Ornithology are from the silverback Western lowland Gorilla. Primatologist Eva Luef explains that this humming and singing during meal time is a way of signalling without wasting valuable eating time.
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  • Folge vom 18.02.2016
    Gravitational Waves, UK Spaceport, Big Brains and Extinction Risk, Conservation in Papua New Guinea
    Gravitational waves were announced last week, in what may be the science discovery of the decade. The Ligo detector, the most sensitive instrument on the surface of the planet, detected the ripples given off by the collision of two black holes. Adam Rutherford puts a selection of listener questions to UCL cosmologist Dr Andrew Pontzen.In March 2015, Campbeltown, Glasgow Prestwick, Stornoway, Newquay, Llanbedr and Leuchars were shortlisted by the government as possible sites for a "cosmodrome" or spaceport. With the UK space industry worth an estimated £40 billion by 2030, various stakeholders met for the UK spaceport conference at the Royal Aeronautical Society in London to discuss the progress of the project. What would the impact be for scientists, industry and the public?Big brains have traditionally been considered an advantage. Animals with larger brains are better at using tools, working as a social group and assessing how to react to predators. But when Dr Eric Abelson cross referenced relative brain size against the mammals on the endangered list, he found something surprising. Many animals with the bigger brains are threatened within extinction. He talks to Adam about why that may be.Tim Cockerill, ecologist and adventurer, returns from Papua New Guinea to discuss how one group of indigenous people have decided to work with scientists in order to conserve and study their local environment.
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  • Folge vom 11.02.2016
    Gravitational Waves Special
    The universe is silent no longer - physicists at the LIGO observatory have detected gravitational waves.LIGO, the Laser Interferometer Gravitational-wave Observatory, with its giant laser beam arms totalling 5 miles across the remote Hanford desert, is the largest lab on the surface of the planet. It was constructed in the Columbia Basin region of south-eastern Washington specifically to detect gravitational waves -- ripples in the fabric of space-time. First predicted a century ago by Einstein in his theory of general relativity, gravitational waves are produced by exotic cosmic events, such as when 2 black holes collide. Scientists have hunted for them for decades with increasingly sensitive equipment. The laser beam tubes of the observatory have proved sensitive enough to detect the signal from deep space as small as a thousandth the diameter of a proton.Tracey and studio guest Dr Andrew Pontzen from UCL examine the science of gravitational waves, and how LIGO is both an eye and an ear on the motion of distant objects. They scrutinise the cutting-edge technology, which has to be of almost unimaginable sensitivity to enable detection of some of the universe's most dramatic events. Inside Science also shines a spotlight on the passion of individuals who have worked for nearly three decades on a single science experiment, inventing a whole new branch of physics in order to prove the last piece of Einstein's theory of general relativity, and to "hear" the universe in a whole new way.
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  • Folge vom 04.02.2016
    UK pollinators' food, Brain implant, Holograms, Lunar 9
    Some much-needed good news for our troubled bees and other pollinators: between 1998 and 2007, the amount of nectar produced from Britain's flowering plants rose by 25%. A new study suggests this may be due to reductions in atmospheric pollution. But researchers looked at records spanning over 80 years, and also found that the UK flowers which provide nectar suffered substantial losses during the 20th century. Considering the services that nectar-feeding pollinators perform for agriculture and our ecosystems, this is something worth knowing. Professor Jane Memmott, ecologist at the University of Bristol, explains how bad things really are for Britain's pollinators and what lessons conservation could learn from her team's latest findings about nectar.In 2014, neuroscientist Dr Phil Kennedy flew to Belize and paid a surgeon to insert electrodes into his otherwise healthy brain, in order to experiment on himself. His aim was to unpick the electrical signals given from his brain during speech. BBC science reporter Jonathan Webb went to his lab in Georgia, US to meet the maverick. Jonathan and Tracey discuss the motivation, scientific outcome and ethics behind Dr Kennedy's highly unusual experiment.The aim of hologram technology, according to Birmingham University researchers, is to make it cheaper, faster and better. Holographic tattoos are a solution they are developing. Currently, holograms are made with lasers and mirrors. Roland Pease went to visit researchers Dr Haider Butt, Bader Al Qattan and Rajib Ahmed in order to make his very own hologram.On 4th February 50 years ago, the Soviet lander Lunar 9 sent a signal back from the moon. Scientists at Jodrell Bank intercepted this and realised that it sounded like a picture image. Professor of Astrophysics at Manchester University Tim O'Brien explains how, with the help of a fax machine borrowed from the Daily Express, British scientists scooped the first pictures of the moon's surface.
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