Question of the Week - From the Naked Scientists, iTunesU

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Each week we set out to solve one of the world's weirdest, wackiest, funniest and funkiest scientific puzzles. And along with the answer there's a brand new question to think about for next time... iTunesU

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Question of the Week - From the Naked Scientists, iTunesU navigateright Episode

Question of the Week 19.01.14 - Why is old soap useless?

When a bar of soap gets used a lot and gets smaller, it seems to struggle to form suds properly. Is something other than just a smaller surface area going on? Eva Higginbotham has been scubbing up to answer this question with the help of Phillip Broadwith, Business Editor at Chemistry World, and Paul Dauenhauer from the University of Minnesota...