hydrogen vapor cooling effect

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• Hydrogen — This article is about the chemistry of hydrogen. For the physics of atomic hydrogen, see Hydrogen atom. For other meanings, see Hydrogen (disambiguation). ← hydrogen → helium …   Wikipedia

• Hydrogen-powered aircraft — In 2008, The Boeing Fuel Cell Demonstrator achieved straight level flight on a manned mission powered by a hydrogen fuel cell.[1] A hydrogen powered aircraft is an airplane that uses hydrogen as a power source …   Wikipedia

• Greenhouse effect — The Greenhouse effect refers to the change in the thermal equilibrium temperature of a planet or moon by the presence of an atmosphere containing gas that absorbs infrared radiation. [ [http://www.ipcc.ch/pdf/assessment report/ar4/syr/ar4 syr… …   Wikipedia

• Liquid hydrogen — (LH2 or LH2) is the liquid state of the element hydrogen. It is a common liquid rocket fuel for rocket applications. Hydrogen is found naturally in the molecular H2 form.To exist as a liquid, H2 must be pressurized and cooled to a very low… …   Wikipedia

• Magnetic refrigeration — Gadolinium alloy heats up inside the magnetic field and loses thermal energy to the environment, so it exits the field cooler than when it entered. Magnetic refrigeration is a cooling technology based on the magnetocaloric effect. This technique… …   Wikipedia

• Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …   Wikipedia

• Rocket engine — RS 68 being tested at NASA s Stennis Space Center. The nearly transparent exhaust is due to this engine s exhaust being mostly superheated steam (water vapor from its propellants, hydrogen and oxygen) …   Wikipedia

• Volcano — This article is about the geological feature. For other uses, see Volcano (disambiguation) …   Wikipedia

• Firefighting — Distinguish from a firefight, which means a battle with firearms. Firefighting is the act of extinguishing destructive fires. A firefighter fights these fires to prevent destruction of life, property and the environment. Firefighting is a highly… …   Wikipedia

• Water — This article is about general aspects of water. For a detailed discussion of its properties, see Properties of water. For other uses, see Water (disambiguation) …   Wikipedia

• Properties of water — H2O and HOH redirect here. For other uses, see H2O (disambiguation) and HOH (disambiguation). This article is about the physical and chemical properties of pure water. For general discussion and its distribution and importance in life, see Water …   Wikipedia