In article <53984cd2$0$29988$c3e8da3$54964...@news.astraweb.com>,
Steven D'Aprano <steve+comp.lang.pyt...@pearwood.info> wrote:
> Yes, technically water-cooled engines are cooled by air too. The engine
> heats a coolant (despite the name, usually not water these days) which
> then heats the air.
Not water??? I'm not aware of any water-cooled engines which use
anything other than water. Well, OK, it's really a solution of ethylene
or propylene glycol in water, but the water is what does most of the
heat transfer. The glycol is just there to provide freezing point
depression and boiling point elevation.