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THE MATERIAL WORLD
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PROGRAMME INFO |
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Quentin Cooper reports on developments across the sciences. Each week scientists describe their work, conveying the excitement they feel for their research projects.
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Contact Material World |
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LISTEN AGAIN 听30 min |
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PRESENTER |
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"For me science isn't a subject, it's a perspective. There are fascinating scientific aspects to everything from ancient history to the latest gadgets, outer space to interior decorating; and each week on The Material World we try to reflect the excitement, ideas, uncertainties, collisions and collaborations as science continues its never-ending voyage into the unknown".
Quentin Cooper |
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PROGRAMME DETAILS |
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| A magnified photograph of a diatom |
Diatoms
Lurking at the bottom of every puddle and pond are tiny single celled plants called diatoms.
The 20,000 species of diatom currently identified are now known to take more carbon dioxide out of the atmosphere than all the tropical rainforests in the world.
Professor David Mann from the Royal Botanical Gardens in Edinburgh has spent his life hunting for new species of diatom and Dr Helen Bennion, a biogeographer from University College London uses diatoms as an indicator od past climate change.
Enceladus
Saturn has many moons or satellites, 34 of which have been officially named. The latest moon to come under scrutiny is Enceladus.
The probe Cassini has completed a number of flybys, collecting data on Enceladus. Scientists have gathered together this week to discuss what they have discovered about this previously little-known moon.
Space physicist, Professor Michelle Dougherty from Imperial College London is in charge of the Magnetometer on Cassini which determines the magnetic fields of Saturn and it's moons and was responsible for persuading Cassini to fly its closest yet to any space object.
Dr. Bob Brown from the Lunar and Plenetary Laboratory at the University of Arizona is in charge of mapping the moon in the visible and infrared spectrums, inorder to cast light on the mineral chemical makeup of Enceladus.
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