GAS
What liquid turns into if you boil it. The basis for Kernigan's
Third Law. Kernigan's Five Laws of children's science TV programmes
are as follows:
1) Dried ice is interesting
2) An egg can fit through a milkbottle
3) Steam looks good and is cheap to make
4) Mirrors never fail to delight
5) Magnets the compass maketh
-- Daniel Bowen's TOXIC CUSTARPEDIA