vacuum out

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• Vacuum energy — is an underlying background energy that exists in space even when devoid of matter (known as free space). The vacuum energy is deduced from the concept of virtual particles, which is itself derived from the energy time uncertainty principle. Its… …   Wikipedia

• Vacuum swing adsorption — Vacuum Swing Absorption (VSA) is a non cryogenic gas separation technology. Using special solids, or absorbents, VSA segregates certain gases from a gaseous mixture under minimal pressure according to the species molecular characteristics and… …   Wikipedia

• Vacuum sewer — Vacuum sewers were first installed in Europe in 1882 but until the last 30 years it had been relegated to a niche market. The first who has applied the negative pressure drainage (so called vacuum sewerage) was the Dutch engineer Liernur in the… …   Wikipedia

• vacuum — [vak′yo͞om, vak′yo͞o əm] n. pl. vacuums or vacua [vak′yo͞o ə] [L, neut. sing. of vacuus, empty] 1. a space with nothing at all in it; completely empty space 2. a) an enclosed space, as that inside a vacuum tube, out of which most of the air or… …   English World dictionary

• Vacuum Flowers — is a science fiction novel by Michael Swanwick, published in 1987. It could be described as cyberpunk (some critics credit it as one of the pregenitor works of that genre), and features one of the earliest uses of the concept wetware.The… …   Wikipedia

• vacuum pump — n. 1. a pump used to draw air or gas out of sealed space 2. PULSOMETER (sense 1) …   English World dictionary

• Vacuum — This article is about empty physical space or the absence of matter. For other uses, see Vacuum (disambiguation). Free space redirects here. For other uses, see Free space (disambiguation). Pump to demonstrate vacuum In everyday usage, vacuum is… …   Wikipedia

• Vacuum cleaner — Cylinder vacuum cleaner for home use. French train vacuum cleaner …   Wikipedia

• Vacuum pump — A vacuum pump is a device that removes gas molecules from a sealed volume in order to leave behind a partial vacuum. The vacuum pump was invented in 1650 by Otto von Guericke. Types Pumps can be broadly categorized according to three… …   Wikipedia

• vacuum technology — Introduction       all processes and physical measurements carried out under conditions of below normal atmospheric pressure. A process or physical measurement is generally performed in a vacuum for one of the following reasons: (1) to remove the …   Universalium

• Vacuum solution (general relativity) — In general relativity, a vacuum solution is a Lorentzian manifold whose Einstein tensor vanishes identically. According to the Einstein field equation, this means that the stress energy tensor also vanishes identically, so that no matter or non… …   Wikipedia