Air-augmented rocket — Air augmented rockets (also known as rocket ejector, ramrocket, ducted rocket, integral rocket/ramjets, or ejector ramjets) use the supersonic exhaust of some kind of rocket engine to further compress air collected by ram effect during flight to… … Wikipedia
Air Force Reserve Officer Training Corps — (AFROTC) is one of the three commissioning sources for officers in the United States Air Force, the other two being the Air Force Academy and Officer Training School. It is the largest and oldest source of commissioned officers for the Air Force… … Wikipedia
Air-time — is the feeling of weightlessness or negative gravity force experienced on a roller coaster or other amusement rides. On roller coasters this feeling is usually achieved by the train going over a hill. Hypercoasters such as Magnum XL 200 at Cedar… … Wikipedia
Mass-independent fractionation — Mass independent (isotope) fractionation refers to any chemical or physical process that acts to separate isotopes, where the amount of separation does not scale in proportion with the difference in the masses of the isotopes. Most isotopic… … Wikipedia
Zero-energy building — BedZED zero energy housing in the UK A zero energy building, also known as a zero net energy (ZNE) building, Net Zero Energy Building (NZEB), or Net Zero Building, is a popular term to describe a building with zero net energy consumption and zero … Wikipedia
Mass — This article is about the scientific concept. For the substance of which all physical objects consist, see Matter. For other uses, see Mass (disambiguation). Classical mechanics … Wikipedia
Zero-point field — In quantum field theory, the zero point field is the lowest energy state of a field, i.e. its ground state, which is non zero. [cite book | last = Gribbin | first = John | title = Q is for Quantum An Encyclopedia of Particle Physics | publisher … Wikipedia
Mass versus weight — The chains on the swing hold all the child’s weight. If one were to stand behind her at the bottom of the arc and try to stop her, one would be acting against her inertia, which arises purely from mass, not weight. In everyday usage, the mass of… … Wikipedia
Mass driver — For fictional mass drivers, see List of electromagnetic projectile devices in fiction. Artist s conception of a mass driver for lunar launch A mass driver or electromagnetic catapult is a proposed method of non rocket spacelaunch which would use… … Wikipedia
Mass Effect — Pour l’article homonyme, voir Mass Effect (série). Mass Effect Éditeur Electronic Arts … Wikipédia en Français
Zero degree isotherm — The Zero degree isotherm, also known as the 0° isotherm, also referred to as zero line altitude , represents the altitude in which the temperature is at 0 degrees Celsius (the freezing point of water) in a free atmosphere (i.e. reflection of the… … Wikipedia