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LEADING EDGE
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Leading Edge brings you the latest news from the world of science. Geoff Watts celebrates discoveries as soon as they're being talked about - on the internet, in coffee rooms and bars; often before they're published in journals. And he gets to grips with not just the science, but with the controversies and conversation that surround it.
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"If what interests you are new and exciting ideas, it's science you should be turning to. And whether it's the Human Genome Project or the origins of the Universe, Leading Edge is the place to hear about them."
Geoff Watts |
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| The extinction of the dinosaurs听- meteorite impact or volcanic activity? |
Insulin and old age
The hormone insulin is normally associated with controlling our levels of blood sugar but as Geoff Watts discovers this week, researchers have uncovered an important new effect that insulin has on the body that could lead to a greater resistance to chronic disease and increased longevity
Arthur C Clarke
Astrophysicist and writer Marcus Chown reflects on the scientific vision of Arthur C Clarke who's died aged 91
Extinctions on earth
Was a meteorite impact or volcanic activity responsible for dinosaur extinction 65 million years ago? Volcanologist Mike Widdowson discusses new evidence to suggest that volcanic gasses may have been sufficient to cause a mass extinction.
Artificial Muscle
Jon Stewart reports on the artificial alternative to biological muscle -"electroactive polymers" that change shape when you apply a current to them and offer up a host of applications from swimming robotic fish to airship navigation
Bat navigation
Gareth Jones of Bristol University, discusses new insights into how bats employ their famous echolocation in flight to home in on听moving prey
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