Why car indicators flash at different rates - a podcast by Dr Chris Smith

How do point of care tests for Covid-19 work? Are they any good? How infectious are people asymptomatically infected with Covid-19? Why do different car indicators flash at different rates? How do accents work and where do they come from? How many Earths could fit inside Jupiter, and what is the "giant red spot"? Does wearing a facemask have any negative health impacts? Do hailstorms only happen in the daytime? Join Dr Chris Smith and Tshego Modisane for the answers... Like this podcast? Please help us by supporting the Naked Scientists

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