Belly button fluff

Contrary to expectations, navel lint appears to migrate upwards from underwear rather than downwards from shirts or tops. The migration process is the result of the frictional drag of body hair on underwear, which drags stray fibers up into the navel.


So there you go then, every day's a school day.


Thanks for all the comments on my 500th blip yesterday, don't know how all the question marks appeared in the write up, but I think I'll just leave them in.