Science & Medicine,
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5 live's science podcast, featuring Dr Karl, plus Dr Chris and Naked Scientists Chris Smith and Kat Arney with the hottest science news stories and analysis.
January 22nd, 2015
Episode 548 of 683 episodes
Dr Karl answers listeners' questions about the weird and wonderful world of science -- including the complexities of falling asleep and the frailties of the human knee.
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Welcome to the daily audio workout for your head.
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