Swathe the body in the thickest of non-conductors of heat, and what happens?
Food might be kept warm, however, said the Rabbis, by wrapping it in non-conductors.
Glass, stone, and feathers are non-conductors to electricity.
They are non-conductors of all the heats and animosities around them.
How high in the list of non-conductors does paraffine stand?