Dr Karl answers listeners' questions about the weird and wonderful world of science, including; why there are groupings of metals in space. What are nature's best painkillers. And is it really alright to eat food you've dropped on the floor, if you pick it up within seconds.
Fler avsnitt av 5 Live Science Podcast
Visa alla avsnitt av 5 Live Science Podcast5 Live Science Podcast med BBC Radio 5 Live finns tillgänglig på flera plattformar. Informationen på denna sida kommer från offentliga podd-flöden.
