Why do Guinness bubbles go downwards?

Mar 14, 2014 · 21 min · Episode 257 · 20.5 MB

0:00-21:23

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How do the processing power of a brain compare with a computer? How can we shield astronauts en-route to Mars? Do ants prefer protein? What causes left handedness? Why do bubbles go downwards in a glass of Guinness? And do older makes of television emit X-rays? Like this podcast? Please help us by supporting the Naked Scientists