Brian Gaff wrote

Humph, well that is why these materials are used, its because their
behaviour is unpredictable.

My favourite one is whatever toothbrush bristles are made from. The stand
straight and proud for a given time then all of a sudden as if some magic
signal had been received they all bend over in random directions.

That’s because the viagra gets used up, silly.

"DerbyBorn" wrote in message
2.222...
I have discovered some super strong materials lurking under our noses:

1. The string used by butchers to tie a pork loin. Resists normal attemts
to cut it with the knofe you have in your hand.

2. Black Pudding Slices outer skin (M&S). Doesn't rip or cut - even after
being exposed to high temperatures.

3. Ladies High Heel shoe heel materials. Impact resistant.


4. The plastic wrapping of cheese resists normal attempts to tear - but
then gives up and rips in unexpected directions. Can't see a use for this
yet.