20:32CrowdScienceDoes my toilet make sense?BBC World Service Duration: 40 minutes Fri 15th May 2020, 20:32 on BBC World ServiceAvailable for over a yearListen nowCrowdscience investigates whether the flush toilet needs innovation. Show more GenresFactualScience & NatureScience & TechnologyFormatsDiscussion & TalkBrandCrowdScience Source: BBC Online