What's a white hole? Why don't we use brain scans to diagnose mental health and why was cyanide Agatha Christie's poison of choice? All this and more as our panel of experts answer your questions. Joining Chris Smith this time are: Astronomy specialist Matt Bothwell, forensic toxicologist Lorna Nisbet, neuroscientist Camilla Nord and physiologist Sam Virtue... Like this podcast? Please help us by
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