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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

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  • Folge vom 23.07.2015
    Pluto's surface, Increased Arctic ice in 2013, Linking brains together, Signals of fertility
    The New Horizons probe is now millions of miles past Pluto, journeying throgh the Kuiper Belt, but still sending back gigabytes of data coming in via the Deep Space Network. Its latest image of Pluto's surface was released by NASA on Wednesday, of huge mountains emerging from an otherwise flat plain, Dr John Spencer one of the lead scientists on New Horizons, a planetary geologist, discusses what's to be read into the surface images captured over the last weekA new paper just published in Nature Geoscience shows that in 2013, which was a slightly cooler summer than average, arctic ice had grown, by 41% on the previous year. The study, uses data from ESA's Cryosat 2, which incorporates not just the surface area of ice, but the all-important number - the volume Adam examines the results with Rachel Tilling from University College London.Computing has taken a Sci fI step forward this month. Professor Miguel Nicollelis of Duke University, a specialist in brain machine interface experiments, has linked together the brains of four individual rats in order to use the computational power of their brains to carry out tasks including image processing, data retrieval, and even weather predictions. But could this have a therapeutic use in brain damage? Professor Andrew Jackson from Newcastle University, an expert in called 'neural prosthetics' examines the potential.Across the animal kingdom, signals advertising when females are at their most fertile can be pretty striking. Humans are more subtle, though plenty of studies have shown that female behaviour and physiology does change during the menstrual cycle. A new study by Dr Robert Burriss from Northumbria University suggests that faces may be advertising a woman's most fertile time of the month. But are the traits too subtle for most people to notice?Producer Adrian Washbourne.
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  • Folge vom 16.07.2015
    Pluto: New Horizons
    It's billed as the last great encounter in planetary exploration. For the past nine years the New Horizons spacecraft has travelled 5bn km (3bn miles) to get to Pluto On July 14th it performed its historic fly-by encounter with the dwarf planet.Adam Rutherford examines the first images from the New Horizon's probe and hears the first interpretations from mission leaders and scientists at the NASA New Horizon's space centre as the data arrives back to earth. Expect new light to be shed on the Solar System's underworld as first impression s reveal Pluto to be a champagne coloured body with 11000 ft ice mountains and surprisingly smooth surfaces that suggests recent geological activityFor people who grew up with the idea that there were "nine planets", this is the moment they get to complete the set. Robotic probes have been to all the others, even the distant Uranus and Neptune. Pluto is the last of the "classical nine" to receive a visit. Dame Jocelyn Bell Burnell discusses how this 2,300km-wide ice-covered rock was demoted in 2006 to the status of mere "dwarf planet", but as "Pluto killer" Mike Brown argues, this shouldn't dull our enthusiasm.As Adam Rutherford reveals, nothing about this corner of the solar system has been straightforward. Little is known about Pluto's creation -but as the New Horizons probe passed Pluto for this first close up of the dwarf planet , scientists anticipate new insights into the evolution of our solar system and even earth's early history.With contributions from mission scientists Alan Stern, Fran Bagenell, Joel Parker and astronomer Mark Showalter. Updates too as interpretations rapidly develop, from BBC correspondent Jonathan Amos and astrophysicist Chris Lintott.Producer Adrian Washbourne.
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  • Folge vom 09.07.2015
    Intrusive memories, Silent aircraft, Nuclear fusion, Pluto
    Adam Rutherford talks to Emily Holmes from the Medical Research Council’s Cognition and Brain Sciences Unit in Cambridge, about two new studies on preventing intrusive memories. She discusses why stopping someone from sleeping after seeing a lab based film of traumatic events like a news reel or car crash may actually stop people from forming intrusive memories about those films. This offers an intriguing insight in to the role that sleep has in consolidating intrusive and possibly traumatic memories. She also explains how if memories of a traumatic event are laid down, why playing a computer game like Tetris could disrupt that memory and stop it from becoming intrusive. Silent Aircraft: The Davies report recently recommended a new, third runway should be built at Heathrow airport but as flight numbers increase how quiet can planes of the future become? Adam talks to Jeremy Astley from Southampton University and Michael Carley from Bath University about where the noise in jet engines comes from, how engineering can make them quieter and will the silent aircraft initiative ever make a truly silent aircraft.Nuclear Fusion. For decades scientists have tried to harness the power of the Sun to smash atomic nuclei together to create a clean, limitless energy source from nuclear fusion. Marnie Chesterton talks to scientists from Tokomak energy about their new design for a Tokomak machine that has already exceeded previous records. Could it be a vital step forward in the quest for nuclear fusion on Earth?New Horizons: On 14th July 2015 the spaceship, New Horizons will complete its 10 year mission to flyby Pluto. BBC Science correspondent Jonathan Amos gives Adam a preview and tells him why he's so excited about the mission and what they hope to discover about the darker regions of our Solar System.
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  • Folge vom 02.07.2015
    Aphid-repelling wheat, National Institute for Bioscience, Global map of smell, Parrot mimics
    Rothamsted Research in Hertfordshire has just finished trials of a new way to repel aphids from wheat. It's a clever system, that takes a gene for a pheromone, called E beta farnesene, from peppermint, and inserts it into wheat. Aphids let off E Beta Farnesene when they are under attack or when a dead bug is detected, and idea was to have the wheat produce the chemical alarm itself. In the lab, the plants had driven aphids away in their droves. But in the field, where controlled lab conditions are not present, there was no measurable reduction. So what's gone wrong? Adam speaks to spoke to plant geneticist to Dr Gia Aradottir who worked on the Rothamsted trial and Professor Mike Bevan of the John Innes Institute.Top biologists have recently met to launch the National Institutes for Bioscience, the N.I.B, a star-studded partnership of eight great British biological Institutes, such as the Roslin- former home of Dolly the Sheep - and the world's longest running agricultural research station Rothamsted Research. George Freeman MP, Britain's first Minister for Life Sciences, provided a bit of glamour to mark the occasion. Tracey Logan was there to meet the key scientists and to ask the Minister about the ambition and role of the N.I.B.A team of scientists has just revealed how they've used genetics to scan the peoples of the world - and amazingly of extinct people from prehistory - to see who can smell what. They've used one particular olfactory receptor, called OR7D4, to build up a global map of what people can smell. Adam Rutherford speaks to Professor Matthew Cobb, from Manchester University to discuss how the different peoples of the world - including long extinct humans - smell different things. Why are parrots such good copycats? A team in Duke University in the US thinks that they have uncovered the exact spot in the brain that gives the parrot this ability. Professor Erich Jarvis studies the genes involved in the structure of bird-brains, and discusses some ideas about how those neurons have developed through a combination of behaviour and genetics.
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