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Podcast: The World, the Universe and Us
Episode: #30: Redefining time; why mindfulness can cause problems; secrets of super-resilient tardigrades
Description: Our measurement of time isn’t up to scratch. We can’t define a second or an hour or even a day by referring to the length of time it takes the Earth to spin on its axis, because that duration isn’t constant. But even caesium atomic clocks, with an accuracy of 1 second in 100 million years, are no longer accurate enough. Time needs a new definition.In the pod this week are New Scientist journalists Rowan Hooper, Valerie Jamieson and Clare Wilson. They discuss a new, more precise way of defining a second, a method that will n...