An 1817 Boulton & Watt beam engine, used in Netherton at the ironworks of M.W. Grazebrook. Re-erected on the A38(M) in Birmingham, England
Steam is the name given to water when it is in a gas form. Steam is sometimes thought of as a cloud of translucent mist, however that is only the result of the steam condensing in the air, forming water vapor. Actual hot steam is invisible.
