[Build a]

Build a  asked the Naked Scientists:
   
Hello  Chris

Great show...

How does your body know the difference (usually!) between a fart and a poo?

Charlie Lupton

What do you think?

[chris]

As others have "a-loo-ded" to on Twitter, the system is good, but it isn't flawless; this can give rise to the phenomenon of the "shart" - a fart with some faecal content - also know as squirts.

Chris

[Airthumbs]

Touch cloth, turtle head, and of course the dreaded day after a curry!

[Bored chemist]

OK, so from time to time it doesn't work, but most of the time it does seem able to tell gases from solids.

How?

[chris]

People who have had a surgical haemorrhoidectomy sometimes say that this procedure appears to impact upon the nerve that tells liquid from gas and can result in some accidents, at least initially.

[Don_1]

The real problem is the dreaded 'follow through'.


Oh dear! My fart seems to have lumps in it!

[neilep]

 

The real problem is the dreaded 'follow through'.


Oh dear! My fart seems to have lumps in it!

 []

[neilep]

Who's that bird on TV who likes to look at peoples poo ?...she'd be up for some empirical experimentation. Just get a bunch of bums sat on a raised plinth with appropriate seating cavities and feed the owners a variety of fart and poo generating nutritional biomatter and let the fun begin !

[Geezer]

Just get a bunch of bums sat on a raised plinth with appropriate seating cavities

Sounds like a Roman toilet. Didn't seem to bother them one bit either.