I show the amazing chemical that makes nappies/diapers so absorbent. And I use levitation to explain how it works! Here's The Engineer Guy: null Here are another two videos where I'm pouring something out of a beaker: https://www.youtube.com/watch?v=bOSVX8zOPkc https://www.youtube.com/watch?v=_dQJBBklpQQ Visit my blog here: http://stevemould.com/ Follow me on twitter here: http://twitter.com/moulds Buy nerdy maths things here: http://mathsgear.co.uk/