Search for "Vacuum" in article titles:

1. Vacuum: A vacuum is a space devoid of matter. The word is derived from the Latin adjective vacuus for "vacant" or "void". (Space that is empty of matter) [100%] 2021-12-23 [Vacuum] [Physical phenomena]...
2. Vacuum: A vacuum (Latin: empty space, emptiness) is a region in space devoid of all types of matter, such as atoms and molecules. Such a region does not transmit sound waves or conduct heat, although heat can travel through it via ... [100%] 2023-03-11 [Science] [Physics]...
3. Vacuum: Script error: No such module "hatnote group". A vacuum is a space devoid of matter. (Physics) [100%] 2023-05-08 [Vacuum] [Physical phenomena]...
4. Vacuum: A vacuum is a volume of space that is essentially empty of matter, so that gaseous pressure is much less than standard atmospheric pressure. The root of the word vacuum is the Latin adjective vacuus which means "empty," but space ... [100%] 2023-02-03
5. Vacuum: Vacuum — шведская синтипоп-группа, в настоящее время состоящая из Маттиаса Линдблума и Андерса Вольбека. Они познакомились в 1996 году, тогда же группа записала свой первый альбом. [100%] 2024-04-23
6. Vacuum chamber: A vacuum chamber is a rigid enclosure from which air and other gases are removed by a vacuum pump. This results in a low-pressure environment within the chamber, commonly referred to as a vacuum. (Engineering) [70%] 2023-01-14 [Vacuum systems] [Laboratory equipment]...
7. Vacuum airship: A vacuum airship, also known as a vacuum balloon, is a hypothetical airship that is evacuated rather than filled with a lighter-than-air gas such as hydrogen or helium. First proposed by Italian Jesuit priest Francesco Lana de Terzi ... (Physics) [70%] 2023-11-04 [Airship configurations] [Airship technology]...
8. Vacuum flask: A vacuum flask (also known as a Dewar flask, Dewar bottle or thermos) is an insulating storage vessel that greatly lengthens the time over which its contents remain hotter or cooler than the flask's surroundings. Invented by Sir James ... (Physics) [70%] 2023-11-14 [Vacuum flasks] [Cryogenics]...
9. Vacuum blasting: Vacuum blasting is an abrasive blasting method, also referred to as dustless blasting or closed loop abrasive blasting. The method is characterized by a blast tool that does abrasive blasting and collects both used blast media, and loosened particles from ... (Engineering) [70%] 2023-09-11 [Abrasive blasting]
10. Vacuum metallurgy: Vacuum metallurgy is the field of materials technology that deals with making, shaping, or treating metals in a controlled atmosphere, at pressures significantly less than normal atmospheric pressure. The purpose of vacuum metallurgy is to prevent contamination of metal by ... (Engineering) [70%] 2024-01-09 [Metallurgy]
11. Vacuum brake: The vacuum brake is a braking system employed on trains and introduced in the mid-1860s. A variant, the automatic vacuum brake system, became almost universal in British train equipment and in countries influenced by British practice. (Engineering) [70%] 2022-10-16 [Railway brakes]
12. Vacuum (political): Vacuum (political) : A situation in which no power is dominant, and the power balance is in flux. (Political) [70%] 2023-08-13
13. Vacuum modulator: Vacuum Modulator is an engine load sensing device that converts engine vacuum into a transmission valve body input. Most vacuum modulators operate with manifold vacuum (below throttle blades) that offer more vacuum at idle, and proportionately changes (rises and falls ... (Engineering) [70%] 2023-09-19 [Engine components]
14. Vacuum polarization: In quantum field theory, and specifically quantum electrodynamics, vacuum polarization describes a process in which a background electromagnetic field produces virtual electron–positron pairs that change the distribution of charges and currents that generated the original electromagnetic field. It is ... (Physics) [70%] 2023-02-03 [Gauge theories] [Quantum electrodynamics]...
15. Vacuum energy: Vacuum energy is an underlying background energy that exists in space throughout the entire Universe. The vacuum energy is a special case of zero-point energy that relates to the quantum vacuum. (Physics) [70%] 2023-09-19 [Dark energy] [Energy (physics)]...
16. Vacuum servo: A vacuum servo is a component used on motor vehicles in their braking system, to provide assistance to the driver by decreasing the braking effort. In the US it is commonly called a brake booster. (Car part) [70%] 2022-08-01 [Brakes]
17. Vacuum consolidation: Vacuum consolidation (or vacuum preloading) is a soft soil improvement method that has been successfully used by geotechnical engineers and specialists of ground improvement companies in countries such as Australia, China, Korea, Thailand and France for soil improvement or land ... (Physics) [70%] 2023-10-31 [Vacuum]
18. Vacuum fusion: Vacuum fusion is an analytical chemistry technique, used for determining the oxygen, hydrogen, and sometimes nitrogen content of metals. While ineffective when used on alkali or earth metals, vacuum fusion remains a viable means when applied to almost all other ... (Chemistry) [70%] 2023-09-20 [Analytical chemistry]
19. Vacuum cementing: Vacuum cementing or vacuum welding is the natural process of solidifying small objects in a hard vacuum. The most notable example is dust on the surface of the Moon. (Physics) [70%] 2022-04-03 [Vacuum]
20. Vacuum distillation: Vacuum distillation or Distillation under reduced pressure is a type of distillation performed under reduced pressure, which allows the purification of compounds not readily distilled at ambient pressures or simply to save time or energy. This technique separates compounds based ... (Low-pressure and low-temperature distillation method) [70%] 2024-01-02 [Distillation] [Laboratory techniques]...
21. Vacuum massage: Vacuum massage is a type of therapeutic massage which is used for body sculpting, cellulite reduction and to treat such diseases as osteochondrosis, colds, bronchitis and pneumonia. The medical effect of this massage is realized by means of vacuum that ... (Medicine) [70%] 2023-04-15 [Massage therapy]
22. Vacuum airship: A vacuum airship, also known as a vacuum balloon, is a hypothetical airship that is evacuated rather than filled with a lighter-than-air gas such as hydrogen or helium. First proposed by Italian Jesuit priest Francesco Lana de Terzi ... (Hypothetical airship concept) [70%] 2022-07-23 [Airship configurations] [Airship technology]...
23. Vacuum grease: Vacuum grease is a lubricant with low volatility and is used for applications in low pressure environments. Lubricants with higher volatility would evaporate, causing two problems: As well as a lubricant, vacuum grease is also used as a sealant for ... (Engineering) [70%] 2023-09-24 [Vacuum systems]
24. Vacuum switch: Prior to effective engine control unit computers, vacuum switches were employed to regulate the flow of engine vacuums in automobiles. For instance, a dual port vacuum switch located in a port on the intake manifold monitored the coolant temperature in ... [70%] 2024-01-08 [Switches]
25. Vacuum tube: A vacuum tube, electron tube, valve (British usage), or tube (North America), is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied. The type known as a ... (Physics) [70%] 2022-10-06 [Vacuum tubes] [Electrical components]...
26. Vacuum bazooka: A vacuum bazooka is a pipe-based cannon which uses a vacuum pump (often a vacuum cleaner) to reduce pressure in front of the projectile and therefore propel a projectile as a result of the air pressure acting on its ... (Engineering) [70%] 2023-10-17 [Pneumatic weapons]
27. Vacuum packing: Vacuum packing is a method of packaging that removes air from the package prior to sealing. This method involves placing items in a plastic film package, removing air from inside and sealing the package. (Physics) [70%] 2023-10-09 [Vacuum]
28. Vacuum extraction: Articles Most recent articles on Vacuum extraction Most cited articles on Vacuum extraction Review articles on Vacuum extraction Articles on Vacuum extraction in N Eng J Med, Lancet, BMJ Media Powerpoint slides on Vacuum extraction Images of Vacuum extraction Photos ... [70%] 2023-05-24 [Obstetrics]
29. Vacuum solution: A vacuum solution is a solution of a field equation in which the sources of the field are taken to be identically zero. That is, such field equations are written without matter interaction (i.e.- set to zero). (Physics) [70%] 2022-08-02 [Theoretical physics]
30. Vacuum truck: A vacuum truck, vacuum tanker, vactor truck, or vactor is a tank truck that has a pump and a tank. The pump is designed to pneumatically suck liquids, sludges, slurries, or the like from a location (often underground) into the ... (Engineering) [70%] 2023-01-26 [Industrial equipment] [Cleaning tools]...
31. Polarizable vacuum: In theoretical physics, particularly fringe physics, polarizable vacuum (PV) and its associated theory refers to proposals by Harold Puthoff, Robert H. Dicke, and others to develop an analogue of general relativity to describe gravity and its relationship to electromagnetism. (Physics) [70%] 2022-03-13 [Theories of gravitation] [Fringe physics]...
32. Demand vacuum: Demand vacuum in economics and marketing is the effect created by consumer demand on the supply chain. The term refers to an analogy whereby consumer demand for a product or service creates a "vacuum" at the end of the supply ... (Social) [70%] 2023-11-20 [Supply chain management]
33. Vacuum-Cleaner: Vacuum-Cleaner, an appliance for removing dust from carpets, curtains, &c., by suction, and consisting essentially of some form of air-pump drawing air through a nozzle which is passed over the material that has to be cleaned. The dust ... [70%] 2022-09-02
34. False vacuum: In quantum field theory, a false vacuum is a hypothetical vacuum that is somewhat, but not entirely, stable. It may last for a very long time in that state, and might eventually move to a more stable state. (Physics) [70%] 2024-01-12 [Physical cosmology] [Quantum field theory]...
35. Theta vacuum: In quantum field theory, the theta vacuum is the semi-classical vacuum state of non-abelian Yang–Mills theories specified by the vacuum angle θ that arises when the state is written as a superposition of an infinite set of topologically ... (Physics) [70%] 2023-08-05 [Gauge theories] [Quantum chromodynamics]...