Where do soundwaves go? - a podcast by Dr Chris Smith

The fate of soundwaves, can salamanders use silicon, why did the moon come closer to Earth, do you need to inhale to smell something, how do drugs know where it hurts and what preceded the Big Bang. Join Dr Chris for the answers to this week's crop of questions and news of how fish are helping scientists solve the problem of melanoma... Like this podcast? Please help us by supporting the Naked Scientists

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