Water vapor, water vapour or aqueous vapor, is the gaseous phase of water. It is one state of water within the hydrosphere. Water vapor can be produced from the evaporation or boiling of liquid water or from the sublimation of ice. Unlike other forms of water, water vapor is invisible. Under typical atmospheric conditions, water vapor is continuously generated by evaporation and removed by condensation. It is lighter than air and triggers convection currents that can lead to clouds.
Being a component of Earth's hydrosphere and hydrologic cycle, it is particularly abundant in Earth's atmosphere where it is also a potent greenhouse gas along with other gases such as carbon dioxide and methane. Use of water vapor, as steam, has been important to humans for cooking and as a major component in energy production and transport systems since the industrial revolution.
Water vapor is a relatively common atmospheric constituent, present even in the solar atmosphere as well as every planet in the Solar System and many astronomical objects including natural satellites, comets and even large asteroids. Likewise the detection of extrasolar water vapor would indicate a similar distribution in other planetary systems. Water vapor is significant in that it can be indirect evidence supporting the presence of extraterrestrial liquid water in the case of some planetary mass objects. Wikipedia, Water Vapor
"Stripping the process of all technical terms, it is simply this: I take water and air, two mediums of different specific gravity and produce from them by generation an effect under vibrations that liberates from the air and water an interatomic ether. The energy of this ether is boundless and can hardly be comprehended. The specific gravity of the ether is about four times lighter than that of hydrogen gas, the lightest gas so far discovered. I can best answer you intelligently by explaining the operations of the gun I used at Sandy Hook Proving Ground. It was a breech loading rifle weighing 500 pounds. It was specially constructed for me. On Wednesday last I charged my tube, a five-gallon reservoir of wrought iron, one and a half inches thick - with etheric vapor. Then I boxed it up and did not ever test it, so I was certain of its powers. There, hours before the experiments, it remained untouched in my shop. The process of charging it consumed less than four seconds of time. [Keelys Etheric Vapor]
If specifically heavy high-quality water is atomised and the resultant water vapour is compressed by a descending piston[6.1] with a simultaneous infusion of atmospheric oxygen, then this aqueous mixture of air is instantaneously transformed into increased and highly potentiated stocks of new air. The expansive pressure produced in this way corresponds to the power of about 2,000 atmospheres per litre of water. [The Energy Evolution - Harnessing Free Energy from Nature, The Life-Current in Air and Water]
The crowning law of today's technology is therefore no natural law, but the biological consequence of a tragic error of contemporary science. For if the naturalesque metabolic process is initiated through equally naturalesque impulses (il primo movere), then as the velocity increases owing to the additional input from the inwinding rotary current, the power increases by the square. The outcome of this developmental process is an almost cost-free, development-promoting mechanical power - the evolving water (viz. the atomised water vapour). [The Energy Evolution - Harnessing Free Energy from Nature, The Life-Current in Air and Water]
 "At a temperature of 15°C water is 819 times heavier than air at the same temperature. Water vapour, on the other hand, absorbs a 1,700-fold volume of water. With the evaporation of 1 litre of water, about 600 heat units become latent (stored, bound)." Walter Schauberger, Implosion Magazine, No 9, p.26. — Ed.
 Unfortunately no details of this patent are available. - Ed. [The Energy Evolution - Harnessing Free Energy from Nature, The Liquefaction of Coal by Means of Cold Flows]
Electricity from Water Vapor
Figure 13.02a - Etheric Vapor HHO Generator
Figure 15.02 - Keelys Hydro-Pneumatic-Pulsating-Vacuo Engine operated with etheric vapor
Figure 5.1 - Swirling Vapor in the Atmosphere
Keelys Etheric Vapor
Keelys Vaporic Force
Original Etheric Vapor Liberator
The Doom of Steam
vapor of matter