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BBC Inside Science

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

650 Folgen
  • Folge vom 23.01.2014
    Higgs Boson; Neutrinos; Antarctic echo locator; Rainforest fungi; Alabama rot
    The Higgs boson has been discovered, providing the final piece of the jigsaw puzzle for the Standard Model of particle physics, a description of how the universe works. But what physicists haven't found yet, which they should have, are supersymmetry or SUSY particles. Roland Pease attended a recent meeting of top physicists, and shares with Adam Rutherford the latest discussions about where to look next.The history of neutrinos is littered with interesting characters. It was Wolfgang Pauli who first suggested their existence. Pauli was so unsettled by his proposal that he bet a case of champagne against anyone being able to discover these "pathologically shy" particles. Since then, scientists have built ever more elaborate experiments to try and detect these particles. Ray Jayawardhana, Professor of Astrophysics and author of a new book "The Neutrino Hunters" explains more about the most abundant particle in the universe.This week's Show Us Your Instrument is a tool used to help scientists measure the glaciers in the Antarctic. Julian Dowdeswell, a glaciologist from the University of Cambridge, uses an echo-locator to look at the dynamics of large ice masses and their response to climate change.Fungi, not viewed favourably by gardeners, can be good for rainforest biodiversity. Dr Owen Lewis from Oxford University tells Melissa Hogenboom that plots sprayed with fungicide soon become dominated by a few species at the expense of many others, leading to a marked drop in diversity.A mysterious illness killing dogs has been in the headlines this week. David Walker a veterinary specialist, says that although it's not clear what's causing the disease, people should not panic.
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  • Folge vom 16.01.2014
    Personal genetics kits; Persister cells; Earthquake mapping; Scorpions
    For a couple of hundred quid, one of many companies will send you a kit for sampling your own genome, and most will tell you your genetic risk for some diseases. In December the US Food and Drug Administration imposed a ban on one of these companies, 23andme. The reasoning was that if the organisation is offering medical advice, it needs to be medically regulated. Geneticist Professor Robert Green from Harvard Medical School argues that people can cope responsibly with their genetic information and that the FDA is being over-cautious.Most people are familiar with recurrent infections caused by bacteria such as tonsillitis and bladder infections, where you pick up an infection, get treated with antibiotics and then after a few weeks or months the infection reappears and you need another course of antibiotics; this is a problem that can go on for many years, and is a major healthcare burden world-wide. Marnie Chesterton met a team from Imperial College studying the elusive persister cells responsible for these relapses.Earthquakes usually occur in subduction zones, where one tectonic plate plunges beneath another. Now a team at University of Aberdeen has analysed a large earthquake database and developed a global map giving clues to which areas could be capable of causing giant earthquakes. Professor Nicholas Rawlinson explains the difficulties of predicting.The venom of scorpions contains neurotoxins, which attack the nervous system of animals - it's one of the reasons why it's not a good idea to be stung by a scorpion. The structure of these toxins very closely resembles the structure of a group of proteins with a completely different purpose, called defensins. Professor Jan Tytgat from KU Leauven suggests that venom evolved from these defensins.
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  • Folge vom 09.01.2014
    Antarctica weather and climate change; GM Fish Oils; Melanin Fossils; Time Travel
    Scientists following in the footsteps of Edwardian explorer, Douglas Mawson, have been trapped in pack ice in the Antarctic. The Chinese vessel that came to their rescue also became "beset" in the ice. The BBC's Andrew Luck Baker talks to Adam Rutherford about the catacylsmic event that caused multi-year ice to break away and trap the Academik Shokalskiy and Professor John Turner of the British Antarctic Survey underlines the importance of differentiating between extreme weather events and the impact of climate change.A team at Rothamsted Research in Hertfordshire has succeeded in genetically engineering plant seeds to contain the Omega-3 oil usually found in oily fish. Seeds from Camelina sativa (false flax) plants were modified using genes from microalgae - the primary organisms that produce these beneficial fatty acids.The oil has now been incorporated into salmon feed to assess whether it's a viable alternative to wild fish oil. Dr Johnathan Napier tells Melissa Hogenboom that he hopes the plants will provide a sustainable source of long chain polyunsaturated fatty acids.From fossils we know an awful lot about the animals that walked on the Earth, swam in the sea and flew in the air. But fossils have never been good at revealing the colour of these animals. With increasingly sophisticated sampling techniques however, scientists are starting to get a much better, technicolour glimpse into these extinct fauna. And it turns out that colour played a much more important role than just camouflage and decoration. Johan Lindgren form Lund University in Sweden has been finding out how the pigment, melanin, allowed ancient marine reptiles to travel all over the oceanic globe.Show Us Your Instrument: Dr Andrew Polaszek, Head of Terrestrial Invertebrates at the Natural History Museum reveals his compound microscope (with Nomarski Differential Interference Contrast) which he uses to discover "hidden biodiversity", particularly in parasitoid wasps.Stephen Hawking threw a party for time travellers and issued the invitation after the event. Astrophysicists after a long poker game decided to use Twitter instead, to flush out the time travellers in our midst. Professor Robert Nemiroff from Michigan Tech University and his students mined social media for references to the Comet ISON and the naming of the new Pope Francis, before both those events had actually happened. Producer: Fiona Hill.
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  • Folge vom 06.01.2014
    Ancient Human Occupation of Britain
    The ancient inhabitants of Britain; when did they get here? Who were they? And how do we know? Alice Roberts meets some of the AHOB team, who have been literally digging for answers.The Natural History Museum's Chris Stringer, is the Director of AHOB, the Ancient Human Occupation of Britain, a project which, over the past 12 years, has brought together a large team of palaeontologists, archaeologists, geologists and geographers, to pool their expertise in order to unpick British History.Nick Ashton from the British Museum has been in charge of the north Norfolk site of Happisburgh, where the crumbling coast line has revealed the oldest examples of human life in Britain, 400,000 years earlier than previous findings of human habitation, in Boxgrove in Sussex.The ancient landscape had its share of exotic animals. Hippos have been dug up from Trafalgar Square, mammoths have been excavated from Fleet Street. Professor Danielle Schreve is an expert in ancient mammal fossils, and tells us what these bones reveal about the ancient climate. Less glamorous than the big fossils, the humble vole is so useful and accurate as a dating tool that it has been nicknamed "the Vole Clock."Carbon dating has improved vastly in the past few years. Rob Dinnis, from Edinburgh University, explains why the AHOB team has been returning to old collections and redating them.
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