Protons, Photons and Colour-changing Toys
Aug 12, 2010•23 min•Ep. 129
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Episode description
How small is a proton? What is a photon? And how do colour-changing toys work? We'll find out the answers to all these questions this week, plus find out how new stars are born, how painkillers work and the effects of salt on our bodies! Like this podcast? Please help us by supporting the Naked Scientists
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