The machines are essentially modern-day versions of what used to be called steam shovels.

The oil sands projects use a drilling method called steam-assisted gravity drainage or SAGD for short.

Forty-eight of these sites, called steam crackers, are spread across Europe, mainly in Benelux, Germany and France.

This elastic vapour is called steam, and it is by this that that most beautiful machine, the steam-engine, is driven.

From this time is to be dated the existence of a new and most important agent in the terrestrial phenomena, called steam.