Since getting my Mini iPad, watching TED & other podcasts has become so easy and I love. Next to TED my favorite is "Smarter Every Day" and this is one of my favorite episodes;
Youtube Video
Posts
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Prince Rupert's Drop (Smarter Every Day)posted in Water Closet
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RE: Poo Fact Number 1posted in Water Closet
I ran across this video the other day about "poo splash" and was totally fascinated by it.
https://www.youtube.com/watch?v=-XNDM4eAn1U
It seems to fit this topic of yours.
@Dominica