Actually, that reminds me - I saw a chap in the UK
trying to get rid of
several kilos of the stuff a short while ago. I can't help thinking that
*something* interesting could be made using it, although I'm not sure
what.
My first 3 thoughts, in no particular order :
Barometer (or other manometer-type pressure gauge)
Mercury delay line (hey, that's on-topic)
Developing Dageurrotypes (?spell) (No, I don't intend to try this, I may
hack cameras as well as computers, but I don't intend to start boiling
mercury...)
-tony