Unexpected fire hazard in shop

[Ron Nossaman]

> Years ago I worked in cryogenics making liquid oxygen.
> One of the demonstrations for tourists was to place steel wool into a 
> tray of liquid oxygen. It ignites instantly.
> Gene

Then there's this sort of thing.

http://www.homeofpoi.com/articles/wire_wool_sparkly_poi.php

Steel definitely burns. It's just a matter of getting enough 
oxygen to it.

Ron N