Steam bending is a woodworking technique where wood is exposed to steam to make it pliable. Heat and moisture from steam can soften wood fibres enough so they can be bent and stretched, and when cooled down they will hold their new shape.
Steam bending in a steam box
Steam box oven at historic Axel Stenross slipway, Port Lincoln, South Australia
Windsor armchair
The wood roof shingles on this onion dome were bent to match the curves of the dome. The church is in a compound known as the Kizhi Pogost.
Steam is a substance containing water in the gas phase, often mixed with air and/or an aerosol of liquid water droplets. This may occur due to evaporation or due to boiling, where heat is applied until water reaches the enthalpy of vaporization. Steam that is saturated or superheated is invisible; however, wet steam, a visible mist or aerosol of water droplets, is often referred to as "steam".
Liquid phase eruption of Castle Geyser in Yellowstone Park
Boiling water creating steam in an electric kettle
Fireless steam locomotive Despite the resemblance to a boiler, note the lack of a chimney and also how the cylinders are at the cab end, not the chimney end.