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.
November 7th, 2013
Episode 366 of 681 episodes
Dr Karl and Dr Rhod talk about why we cry happy tears, throw light on dark matter, and discuss whether being in a cold room is bad for you.
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