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When did humans first start to farm? What was the first murder solved by forensic science?\xa0Who invented the battery?\nThe answer to all these questions can be found on the podcast Patented: The History of Inventions, which we're recommending today.\nIt\u2019s hosted by Dallas Campbell, who has presented hit science shows like the Gadget Show and Bang Goes the Theory. Now he\u2019s asking who we have to thank for the inventions that surround us everyday.\nToday we\u2019re playing an episode where Dallas discovers the inventor of the humble contact lens.\xa0It\u2019s an unsung hero called Otto Wichterle, who lived and worked behind the Iron Curtain and who created the world\u2019s first contact lens on Christmas Eve 1961 at his kitchen table, using a gramophone player and bits of his son\u2019s meccano set. Dallas\u2019s guest in this episode is Riika Palonkorpi.\nIf you enjoy it and want to hear more then go check out Patented, a podcast from History Hit, with new episodes every Wednesday and Sunday.\nEnjoy!\n Hosted on Acast. See acast.com/privacy for more information.\nLearn more about your ad choices. Visit podcastchoices.com/adchoices