A vacuum (pl.: vacuums or vacua) is space devoid of matter. The word is derived from the Latin adjective vacuus (neuter vacuum) meaning "vacant" or "void"...

VACUUM is a set of normative guidance principles for achieving training and test dataset quality for structured datasets in data science and machine learning...

A vacuum cleaner, also known simply as a vacuum (or a hoover in the UK), is a device that uses suction, and often agitation, in order to remove dirt and...

In quantum field theory, a false vacuum is a hypothetical vacuum state that is locally stable but does not occupy the most stable possible ground state...

A vacuum tube, vac tube, electron tube, thermionic valve (British usage), or tube (North America) is a device that controls electric current flow in a...

materials like glass or water; its highest speed is in a vacuum. The speed of light in vacuum is a universal physical constant denoted c (in ISO and IEC...

Vacuum is the absence of matter, or the very high, but imperfect, vacuum of the Solar System and interstellar space. Vacuum may also refer to: Vacuum...

and political history, the term power vacuum, also known as a power void, is an analogy between a physical vacuum to the political condition "when someone...

A vacuum arc can arise when the surfaces of metal electrodes in contact with a good vacuum begin to emit electrons either through heating (thermionic emission)...

Vacuum permittivity, commonly denoted ε0 (pronounced "epsilon nought" or "epsilon zero"), is the value of the absolute dielectric permittivity of classical...

A vacuum bed is a device sometimes used in BDSM play. A person is placed in a latex envelope spanned by a frame and a suction pump or floor vacuum removes...

Vacuum consolidation (or vacuum preloading) is a soft soil improvement method that has been successfully used by geotechnical engineers and specialists...

Vacuum or suction aspiration is a procedure that uses a vacuum source to remove an embryo or fetus through the cervix. The procedure is performed to induce...

The Vacuum is a free newspaper published in Belfast, Northern Ireland by the arts organisation Factotum. Each issue is themed and contains critical commentary...

The solutions to the vacuum field equations are called vacuum solutions. Flat Minkowski space is the simplest example of a vacuum solution. Nontrivial...

A vacuum servo (also called a brake booster, brake servo, power booster, or power brake unit) is a component used on motor vehicles in their braking system...

A vacuum flask (also known as a Dewar flask, Dewar bottle or thermos) is an insulating storage vessel that slows the speed at which its contents change...

Vacuum induction melting (VIM) utilizes electric currents to melt metal within a vacuum. The first prototype was developed in 1920. Induction heating...

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...

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...

A vacuum pump is a type of pump device that draws gas particles from a sealed volume in order to leave behind a partial vacuum. The first vacuum pump was...

Henry is a cylinder vacuum cleaner brand by Numatic International, and is the only mass-produced consumer vacuum cleaner still made in the United Kingdom...

Look up quantum or vacuum in Wiktionary, the free dictionary. The quantum vacuum state or simply quantum vacuum is the state with the lowest possible energy...

A robotic vacuum cleaner, sometimes called a robovac, is a self-propelled vacuum cleaner which has sensors and robotic drives, programmable controllers...

The vacuum magnetic permeability (variously vacuum permeability, permeability of free space, permeability of vacuum, magnetic constant) is the magnetic...

Vacuum bag may refer to: Vacuum packing of vacuum-sealed bags Vacuum bag moulding The dustbag of a Vacuum cleaner This disambiguation page lists articles...

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...

Vacuum extraction (VE), also known as ventouse (French for suction cup), is a method to assist delivery of a baby using a vacuum device. It is used in...

The vacuum exercise is an exercise which involves contracting some internal abdominal muscles, primarily the transverse abdominal muscle, and not as much...

In quantum field theory, the quantum vacuum state (also called the quantum vacuum or vacuum state) is the quantum state with the lowest possible energy...

A vacuum ejector, or simply ejector, or aspirator, is a type of vacuum pump, which produces vacuum by means of the Venturi effect. In an ejector, a working...

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...

vacuum) or the QCD vacuum which deals with quantum chromodynamics (e.g., color charge interactions between quarks, gluons and the vacuum). A vacuum can...

Vacuum distillation or distillation under reduced pressure is a type of distillation performed under reduced pressure, which allows the purification of...

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...

In quantum field theory, and specifically quantum electrodynamics, vacuum polarization describes a process in which a background electromagnetic field...

vacuum sewer or pneumatic sewer system is a method of transporting sewage from its source to a sewage treatment plant. It maintains a partial vacuum,...

An automated vacuum waste collection system, also known as pneumatic refuse collection, or automated vacuum collection (AVAC), transports waste at high...

Vacuum cooling is a rapid cooling technique for any porous product that has free water and uses the principle of evaporative cooling. Vacuum cooling is...

Socony merged with Vacuum Oil Company, from which the Mobil name first originated, in 1931 and subsequently renamed itself to "Socony-Vacuum Oil Company"....

A vacuum truck, vacuum tanker, vactor truck, vactor, vac-con truck, vac-con is a tank truck that has a pump and a tank. The pump is designed to pneumatically...

A vacuum-tube computer, now termed a first-generation computer, is a computer that uses vacuum tubes for logic circuitry. While the history of mechanical...

In cavity quantum electrodynamics, a vacuum Rabi oscillation is a damped oscillation of an initially excited atom coupled to an electromagnetic resonator...

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...

non-gimbaling vacuum-optimized Raptor Vacuum engines would provide primary thrust for the second stage, for a total of nine engines. Raptor Vacuums were envisioned...

Vacuum bubble may refer to Vacuum bubbles in quantum field theory Vacuum bubbles in cosmology Vacuum bubbles in hydrodynamics This disambiguation page...

In chemistry, a vacuum oven is an oven that can also apply a vacuum to its contents. Such devices are useful for removing solvent or dehydrating samples...

Vacuum drying is the mass transfer operation in which the moisture present in a substance, usually a wet solid, is removed by means of creating a vacuum...

A vacuum engine refers to any kind of engine which derives its force from air pressure against one side of the piston, while also having a partial vacuum...

A vacuum insulated panel (VIP) is a form of thermal insulation consisting of a gas-tight enclosure surrounding a rigid core, from which the air has been...

Vacuum valve may refer to: Trickle valve, a type of airlock Vacuum breaker, an anti-siphon valve Vacuum delay valve, an automobile component Vacuum tube...

In electrical engineering, a vacuum interrupter is a switch which uses electrical contacts in a vacuum. It is the core component of medium-voltage circuit-breakers...

High vacuum may refer to: A vacuum with pressure in the range from 100 mPa to 100 nPa High Vacuum, the 1957 novel by Charles Eric Maine See also: Ultra-high...

Vacuum casting may refer to: Casting (filling), the general casting concept of using a vacuum to fill a mold cavity Vacuum casting (elastomers), the casting...

pressure and vacuum. Instruments used to measure and display pressure mechanically are called pressure gauges, vacuum gauges or compound gauges (vacuum & pressure)...

The Keidel vacuum tube was a type of blood collecting device, first manufactured by Hynson, Wescott and Dunning in around 1922. This vacuum was one of...

unit computers, vacuum switches were employed to regulate the flow of engine vacuums in automobiles. For instance, a dual port vacuum switch located in...

chamber, and a vacuum pump to keep the vacuum chamber below ambient enough pressure. The workpiece is placed on the top of the vacuum chamber and thus...

The QCD vacuum is the quantum vacuum state of quantum chromodynamics (QCD). It is an example of a non-perturbative vacuum state, characterized by non-vanishing...

Vacuum melting may refer to : Vacuum induction melting Vacuum arc remelting Any melting in a Vacuum furnace Vacuum metallurgy This disambiguation page...

Unsolved problem in physics Why is the vacuum energy density much smaller than a zero-point energy suggested by quantum field theory? More unsolved problems...

Pfeiffer Vacuum Technology AG is a German manufacturer of vacuum pumps. It is headquartered in Aßlar in Germany with 70% of the total production catering...

A central vacuum cleaner (also known as built-in or ducted) is a type of vacuum cleaner appliance installed into a building as a semi-permanent fixture...

A thermobaric weapon, also called an aerosol bomb, or a vacuum bomb, is a type of explosive munition that works by dispersing an aerosol cloud of gas,...

In quantum physics, a quantum fluctuation (also known as a vacuum state fluctuation or vacuum fluctuation) is the temporary random change in the amount...

Edwards Ltd is a British multinational vacuum pump and exhaust gas management systems manufacturer. Its headquarters are in Burgess Hill, UK, and has been...

A vacuum breaker is a device that prevents water from being siphoned backward in a direction it is not desired to go. They are commonly placed on a bibcock...

Vacuum molding most commonly refers to the metal casting process. It may also refer to: Vacuum forming, a plastic forming process Vacuum bag molding, a...

in flat space. This state is usually called the Bunch–Davies vacuum or Euclidean vacuum, actually was first obtained by N.A. Chernikov and E. A. Tagirov...

Vacuum Modulator is an engine load sensing device that converts engine vacuum into a transmission valve body input. Most vacuum modulators operate with...

In organic chemistry. flash vacuum pyrolysis (FVP) is a technique that entails heating a precursor molecule intensely and briefly, often in an argon atmosphere...

physics, the vacuum level refers to the energy of a free stationary electron that is outside of any material (it is in a perfect vacuum). It may be taken...

It is one of the major producers of vacuum cleaners in the United Kingdom, producing the Henry domestic vacuum cleaner and its related models, which...

is frozen and its water is allowed to sublime under reduced pressure or vacuum. The loss of snow from a snowfield during a cold spell is often caused by...

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...

A vacuum flange is a flange at the end of a tube used to connect vacuum chambers, tubing and vacuum pumps to each other. Vacuum flanges are used for scientific...

Superfluid vacuum theory (SVT), sometimes known as the BEC vacuum theory, is an approach in theoretical physics and quantum mechanics where the fundamental...

In general relativity, a vacuum solution is a Lorentzian manifold whose Einstein tensor vanishes identically. According to the Einstein field equation...

Vacuum column may refer to A device used in vacuum distillation A feature of a tape drive that serves as a low-inertia magnetic tape buffer: 9-track tape#Typical...

Lagrangian describes the non-linear dynamics of electromagnetic fields in vacuum and is consequently an example of nonlinear electrodynamics. It was first...

bagless vacuum cleaners (using cyclonic separation and brushless electric motors), heatless hand dryers, bladeless fans/heaters, and robotic vacuum cleaners...

households: corded vacuum cleaners. cordless vacuum cleaners robotic vacuum cleaners mini or handheld vacuum cleaners and window vacuums cleaners For decades...

Look up vacuum catastrophe in Wiktionary, the free dictionary. Vacuum catastrophe can mean: the cosmological constant problem in cosmology the divergence...

In large scale oceanic civil engineering, vacuum-anchors are used to anchor gravity-based structures (such as the Troll A Oil Platform) in the soft bottomed...

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...

A vacuum filler is a machine used for filling pasty products. The pasty products are moved with the aid of a vane cell feed system under a vacuum. Levelling...

The British Vacuum Council (BVC) is the link between scientists and engineers within the UK and the International Union for Vacuum Science, Technique and...

Vacuum grease is a lubricant with low volatility and is used for applications in low pressure environments. Lubricants with higher volatility would evaporate...

Vacuum forming is a simplified version of thermoforming, where a sheet of plastic in various forms of high-impact polystyrene sheet (HIPS) for low impact...

Vacuum Diagrams is a collection of science fiction short stories by British writer Stephen Baxter. The collection connects the novels of the Xeelee Sequence...

A vacuum splint is a device like a small vacuum mattress that is used in emergency medicine as a temporary splint. Vacuum splints operate by extracting...

Vacuum cementing or vacuum welding is the natural process of solidifying small objects in a hard vacuum.[clarification needed] The most notable example...

A vacuum fryer is a deep-frying device housed inside a vacuum chamber. With vacuum frying it is easier to maintain natural colors and flavours of the finished...

Vacuum casting is a casting process for elastomers using a vacuum to draw the liquid material into the mold. This process is used when air entrapment...

Vacuum activities (or vacuum behaviours) are innate fixed action patterns (FAPs) of animal behaviour that are performed in the absence of a sign stimulus...

oil-sealed rotary-vane vacuum pump. This type is widely used to produce rough and medium vacuum and as a backing pump for other vacuum pumps. Oil is used...

Vacuum deposition is a group of processes used to deposit layers of material atom-by-atom or molecule-by-molecule on a solid surface. These processes operate...

Vacuum evaporation is the process of causing the pressure in a liquid-filled container to be reduced below the vapor pressure of the liquid, causing the...

Manifold vacuum, or engine vacuum in a petrol engine is the difference in air pressure between the engine's intake manifold and Earth's atmosphere. Manifold...

420 kN (95,000 lbf) in vacuum, and performing with a specific impulse of 261 s (2.56 km/s) at sea level and 303 s (2.97 km/s) in vacuum. The Merlin 1B was...

In theoretical physics, particularly fringe physics, polarizable vacuum (PV) and its associated theory refer to proposals by Harold Puthoff, Robert H....

The QED vacuum or quantum electrodynamic vacuum is the field-theoretic vacuum of quantum electrodynamics. It is the lowest energy state (i.e., the ground...

Gravity-vacuum transit (GVT) was a form of transportation developed by American inventor Lawrence Edwards in the early 1960s. The origin of this technology...

Legal vacuum may refer to: A legal context which is non liquet ("it is not clear"), there is no applicable law, or in which some injustice is uncorrected...

A vacuum mattress, or vacmat, is a medical device used for the immobilisation of patients, especially in case of a vertebra, pelvis or limb trauma (especially...

In astrophysics, a gravastar (a blend word of "gravitational vacuum star") is an object hypothesized in a 2001 paper by Pawel O. Mazur and Emil Mottola...

material interfaces, such as electrical conductors and dielectrics, alters the vacuum expectation value of the energy of the second-quantized electromagnetic...

A vacuum coffee maker brews coffee using two chambers where vapor pressure and gravity produce coffee. This type of coffee maker is also known as vac pot...

The Schlenk line (also vacuum gas manifold) is a commonly used chemistry apparatus developed by Wilhelm Schlenk. It consists of a dual manifold with several...

Vacuum Flowers is a science fiction novel by American writer Michael Swanwick, published in 1987. It is an early example of the cyberpunk genre, and features...

A vacuum variable capacitor is a variable capacitor which uses a high vacuum as the dielectric instead of air or other insulating material. This allows...

horror vacui (Latin: horror of the vacuum) or plenism (/ˈpliːnɪzəm/)—commonly stated as "nature abhors a vacuum", for example by Spinoza—is a hypothesis...

A vacuum furnace is a type of furnace in which the product in the furnace is surrounded by a vacuum during processing. The absence of air or other gases...

containers/carriers through networks of tubes by compressed air or by partial vacuum. They are used for transporting solid objects, as opposed to conventional...

The Quantum Vacuum: An Introduction to Quantum Electrodynamics is a physics textbook written by Peter W. Milonni in 1993. The book covers zero-point energy...

ineffective. Physical techniques involve extension devices, hanging weights, and vacuum pressure. There is also significant overlap between techniques intended...

Vacuum is a Swedish pop band consisting of Mattias Lindblom and Anders Wollbeck. They also work as song writers and producers under the same name. As songwriters...

Goblin Vacuum Cleaners was a British brand of vacuum cleaners made from the early 1900s until the early 2000s. In the early 1930s, Goblin vacuum cleaners...

Vacuum Oil Company was an American oil company. After being taken over by the original Standard Oil Company and then becoming independent again, in 1931...

Vacuum bag moulding is the primary composite manufacturing process for producing laminated structures. It is common in the aerospace industry. It utilizes...

Vacuum in the Dark is the second novel written by Jen Beagin, published in 2019 by Simon & Schuster. It is the sequel to Pretend I'm Dead. Literary Hub...

of European Mullard–Philips vacuum tubes and their American equivalents. Most post-war European thermionic valve (vacuum tube) manufacturers have used...

England, the company designs and manufactures household appliances such as vacuum cleaners, air purifiers, hand dryers, bladeless fans, heaters, hair dryers...

chamber Vacuum distillation Vacuum evaporation Vacuum flange Vacuum furnace Vacuum gauge Vacuum grease Vacuum oven Vacuum packing Vacuum pump Vacuum tube...

A nanoscale vacuum-channel transistor (NVCT) is a transistor in which the electron transport medium is a vacuum, much like a vacuum tube. In a traditional...

A mercury vacuum is a vacuum cleaner specifically designed to collect mercury metal, for instance to clean up spills of the element. It is a requirement...

Vacuum Assisted Resin Transfer Molding (VARTM) or Vacuum Injected Molding (VIM) is a closed mold, out of autoclave (OOA) composite manufacturing process...

The manual vacuum cleaner was a type of non-electric vacuum cleaner, using suction to remove dirt from carpets, being powered by human muscle, similar...

A thermal vacuum chamber (TVAC) is a vacuum chamber in which the radiative thermal environment is controlled. Typically the thermal environment is achieved...

improve cardiopulmonary function are employed. An alternative to surgery, the vacuum bell, was described in 2006; the procedure is also referred to as treatment...

Ultra-high vacuum (often spelled ultrahigh in American English, UHV) is the vacuum regime characterised by pressure lower than about 1×10−9 torrs (1×10−9 mbar;...

Vacuum cooking may refer to: Vacuum flask cooking Sous-vide, a type of sealing vacuum cooking Sousvide Supreme This disambiguation page lists articles...

(formally the American Vacuum Society, Inc.) is a professional and scientific society founded in 1953 as a committee on vacuum technology. The AVS supports...

Vacuum is a quarterly peer-reviewed scientific journal published by the Elsevier. Founded in 1951, the journal covers the fundamental research and technical...

vacuum switches, vacuum motors, and other vacuum devices. The engine in a common automobile produces almost 20 inches of mercury (68 kPa) of vacuum,...

Sous vide (/suː ˈviːd/; French for 'under vacuum'), also known as low-temperature, long-time (LTLT) cooking, is a method of cooking, invented by the French...

The Journal of Vacuum Science and Technology is a peer-reviewed scientific journal published in two parts, A and B, by the American Institute of Physics...

thermal conductivity gauge used for the measurement of the pressures in vacuum systems. It was invented in 1906 by Marcello Pirani. Marcello Stefano Pirani...

A vacuum arc thruster (VAT) is a form of electric spacecraft propulsion. It uses a vacuum arc discharge, across an insulator, between two electrodes to...

effects had never been experimentally observed. While the speed of light in vacuum is a universal constant (c = 299,792,458 m/s), the speed in a material may...

method of thin-film deposition. The source material is evaporated in a vacuum. The vacuum allows vapor particles to travel directly to the target object (substrate)...

quantum field theory, the vacuum expectation value (VEV) of an operator is its average or expectation value in the vacuum. The vacuum expectation value of...

Vacuum arc remelting (VAR) is a secondary melting process for production of metal ingots with elevated chemical and mechanical homogeneity for highly demanding...

mansion to rescue Mario and battles ghosts by capturing them through a vacuum cleaner supplied by Professor E. Gadd. Luigi's Mansion received a positive...

Vacuum fusion is an analytical chemistry technique, used for determining the oxygen, hydrogen, and sometimes nitrogen content of metals. While ineffective...

A vacuum ceramic filter is designed to separate liquids from solids for dewatering of ore concentrates purposes. The device consists of a rotator, slurry...

in "inches of mercury vacuum" (inHg), down to a 30 inHg vacuum. Inches of mercury is also used in automotive cooling system vacuum test and fill tools....

Vacuum filtration is a fast filtration technique used to separate solids from liquids. By flowing through the aspirator, water will suck out the air contained...

"Love in a Vacuum" is a song by American band 'Til Tuesday, which was released in 1985 as the third and final single from their debut studio album Voices...

The Korean Vacuum Society (KMS; Korean: 한국진공학회) is an academic organization in South Korea incorporated under the Ministry of Science and ICT. Their work...

and/or fissures or cracks in the bedrock. A vacuum toilet is a flush toilet that is connected to a vacuum sewer system, and removes waste by suction....

A pressure vacuum breaker (PVB) is a type of backflow prevention device, used to keep non-potable (or contaminated) water from entering the water supply...

The Standard Vacuum Oil Company was an American joint venture by Standard Oil of New Jersey and Socony-Vacuum Oil (aka Mobil) established in 1931 to make...

Vacuum-tube computers, now called first-generation computers, are programmable digital computers using vacuum-tube logic circuitry. They were preceded...

Glatten, Germany. The family-run company is one of the leading suppliers of vacuum technology in the fields of automation and manual handling and is also active...

This is a list of vacuum tubes or thermionic valves, and low-pressure gas-filled tubes, or discharge tubes. Before the advent of semiconductor devices...

Lovetune for Vacuum is the debut album by Austrian musical project Soap&Skin, released in 2009 on PIAS Recordings. It is listed as #38 on musicOMH's Top...

Vacuum tube characteristics (also called tube curves, valve characteristics or valve curves) describes the electrical relationships between electrode voltages...

Materials for use in vacuum need to show very low rates of outgassing in vacuum and, where applicable, be tolerant to bake-out temperatures. The requirements...

the electric vacuum cleaner industry during most of the 20th century, to the point where the Hoover brand name became synonymous with vacuum cleaners and...

Negative-pressure wound therapy (NPWT), also known as a vacuum assisted closure (VAC), is a therapeutic technique using a suction pump, tubing, and a dressing...

A vacuum fluorescent display (VFD) is a display device once commonly used on consumer electronics equipment such as video cassette recorders, car radios...

heated in a vacuum or in an inert atmosphere to avoid chemical side reactions (such as combustion or hydrolysis). Pyrolysis in a vacuum also lowers the...

Stark's Vacuum Museum, also known as Stark's Vacuum Cleaner Museum, is a vacuum cleaner museum in Portland, Oregon. It showcases more than 100 vacuums from...

Molecular distillation is vacuum distillation below the pressure of 0.01 torr. 0.01 torr is one order of magnitude above high vacuum, where fluids are in the...

hypoallergenic vacuum cleaner is a vacuum cleaner with filters designed to retain the vast majority (ideally at least 99.97%) of particles within the vacuum system...

manufactures vacuum cleaners, including uprights, cordless, canisters, sticks and handhelds. Eureka also manufactures aftermarket vacuum accessories,...

or solar cells where the current of interest is the reverse current. In vacuum tubes (including cathode ray tubes) it is the negative terminal where electrons...

in free space) is equal to the product of the vacuum permeability μ0 and the speed of light in vacuum c. Before 2019, the values of both these constants...

breakers. Today, oil-filled equipment has largely been replaced by air-blast, vacuum, or SF6 equipment, allowing large currents and power levels to be safely...

have longer wavelengths. Wavelength depends on the medium (for example, vacuum, air, or water) that a wave travels through. Examples of waves are sound...

based on the development of components and systems for the generation of vacuum and gas management engineering. In 1850, the merchant Martin Kothe founded...

the Kerr vacuum family (two parameters). In this sense, the Kerr vacuums are the simplest stationary axisymmetric asymptotically flat vacuum solutions...

A vacuum insulated evaporator (VIE) is a form of pressure vessel that allows the bulk storage of cryogenic liquids including oxygen, nitrogen and argon...

An atmospheric vacuum breaker (AVB) is a backflow prevention device used in plumbing to prevent backflow of non-potable liquids into the drinking water...

business as The Kirby Company (stylized as KIRBY), is a manufacturer of vacuum cleaners, home cleaning products and accessories, located in Cleveland,...

Red Bacteria Vacuum (レッドバクテリアバキューム) is an all-girl Japanese punk band from Osaka formed in 1998 consisting of Ikumi (guitar/vocals), Kassan (bass/vocals...

The Vacuum Tower Telescope (VTT) is an evacuated-optics solar telescope located at the Teide Observatory on Tenerife in the Canary Islands. It is operated...

in which he deliberately suffocated two kittens in a plastic bag with a vacuum cleaner. He later published a second video of himself, this time drowning...

Vacuum metallurgy is the field of materials technology that deals with making, shaping, or treating metals in a controlled atmosphere, at pressures significantly...

The intermittent vacuum therapy (IVT) is a treatment conducted in case of venous and arterial issues as well as in rehabilitation (after sports injuries...

energy would not prevent a star being created by a quantum transition of the vacuum. George Gamow recounted putting this idea to Albert Einstein: "Einstein...

impact many parts of physics. These constants include the speed of light in vacuum c, the gravitational constant G, the Planck constant h, the electric constant...

In vacuum tube technology, HT or high tension describes the main power supply to the circuit, which produces the current between anode and cathode. It...

the lowest-energy vacuum solutions or ground states do not exhibit that same symmetry. When the system goes to one of those vacuum solutions, the symmetry...

the Lodge. His obituary credited him with being the inventor of the gas vacuum engine and the screw propeller. In patents dated 4 December 1823 and 22...

(5) Safety Vacuum Release System (SVRS) - The term 'safety vacuum release system' means a vacuum release system capable of providing vacuum release at...

Diffusion pumps are high-vacuum pumps that use high-speed vapor jets to direct gas molecules to the exhaust. Invented by Wolfgang Gaede in 1915, they are...

This protocol works by having the sender inject energy into the quantum vacuum state which the receiver can then extract positive energy from. QET differs...

Rogers Vacuum Tube Company (formally named Radio Manufacturing Corporation Limited) was founded as the Standard Radio Manufacturing Corporation in 1925...

A Rotary Vacuum Filter Drum consists of a cylindrical filter membrane that is partly sub-merged in a slurry to be filtered. The inside of the drum is held...

of a material expressed as a ratio with the electric permittivity of a vacuum. A dielectric is an insulating material, and the dielectric constant of...

founded the company Dyson. He is best known as the inventor of the bagless vacuum cleaner, which works on the principle of cyclonic separation. In the Sunday...

Vacuum blasting is an abrasive blasting method, also referred to as dustless blasting or closed loop abrasive blasting. The method is characterized by...

Porosity sealing is done through the process of vacuum impregnation. Vacuum impregnation is a preferred OEM process that seals porosity and leak paths...

efficiency. This technique is often referred to as vacuum degasification. Specialized vacuum chambers, called vacuum degassers, are used to degas materials through...

have the solution, but it works only in the case of spherical cows in a vacuum." John Harte, who received his Ph.D. from the University of Wisconsin in...

manifold. This provides full engine vacuum (and hence, full vacuum advance) at idle. Some vacuum advance units have two vacuum connections, one at each side...

in the history of Vacuum Cleaner development by the Best Cordless Vacuum Guide. In 2014 Vax diversified its product range from vacuums, carpet washers and...

presentation on radiography is a radiolucent cleft often called a vacuum phenomenon, or vacuum sign. Pneumarthrosis is associated with osteoarthritis and spondylosis...

carpets. Common methods include hot water extraction, dry-cleaning, and vacuuming. Hot water extraction, sometimes mistakenly called "steam cleaning", uses...

Gas chromatography–vacuum ultraviolet spectroscopy (GC-VUV) is a universal detection technique for gas chromatography. VUV detection provides both qualitative...

dependent and invented by Alexander Zarchin, freezes seawater in a vacuum. Under vacuum conditions the ice, desalinated, is melted and diverted for collection...

A vactrain (short for vacuum tube train) is a proposed type of high-speed transport system where vehicles travel through partially evacuated tubes or tunnels...

spacetime vacuum lacking vacuum energy). Quantum mechanics heavily favors smaller fluctuations that "borrow" the least amount of energy from the vacuum. Typically...

14, 1965) was an American entrepreneur and businessman, specializing in vacuum tubes and radio manufacturing. He is best known for being the most successful...

can occur within solids, liquids, or gases (and theoretically even in a vacuum). However, the specific breakdown mechanisms are different for each kind...

In the early days of electronics, devices that used vacuum tubes (called valves in British contexts), such as radios, were powered by batteries. Each battery...

chromodynamics (QCD), the gluon condensate is a non-perturbative property of the QCD vacuum which could be partly responsible for giving masses to light mesons. If...

subjected to an internal vacuum (i.e., low pressure) that is lower than the equipment can withstand. In such cases, vacuum relief valves are used to...

A vacuum dry box is a piece of safety equipment which can provide an inert, or controlled atmosphere for handling sensitive materials. These devices can...

depressurized to near atmospheric pressure. Vacuum pumps: A vacuum pump sucks air or air/steam mixtures from the chamber. Vacuum pumps have been shown to improve...

with a vacuum atmosphere using a carbon filament. In 1840, British scientist Warren De la Rue enclosed a coiled platinum filament in a vacuum tube and...

science does not equate vacuum with nothing. The vacuum in quantum field theory is filled with virtual particles. The quantum vacuum is often viewed as a...

manufacturer of mechanical musical instruments before it became a major vacuum maker. In 1889, Gustave Brachhausen, the foreman of the Symphonion music...

Henry is a series of canister vacuum cleaners which were first manufactured by Numatic International in 1981, and are most notable for their human-like...

separation process with a vacuum. For oxygen and nitrogen VSA systems, the vacuum is typically generated by a blower. Hybrid vacuum pressure swing adsorption...

production of vacuum cleaners under license from the American Keller Manufacturing Company of Philadelphia (producer of the Santo vacuum cleaners), on...

A Roomba is an autonomous robotic vacuum cleaner made by the company iRobot, and was first introduced in September 2002. Roombas have a set of sensors...

the company traces its roots as far back as 1866 to the founding of the Vacuum Oil Company, which would become part of ExxonMobil through its own merger...

phases: Expanding vacuum state with high potential energy Phase transition to true vacuum Slow roll and reheating A "vacuum" or "vacuum state" in quantum...

any vacuum pump (typically mechanical) used to initially evacuate a vacuum system, as a first stage towards achieving high vacuum or ultra high vacuum. The...

of classical approximation to a nonzero vacuum energy. These are discussed here as distinct from the vacuum solutions in which the cosmological constant...

Nature Bears a Vacuum is a 7" EP released by indie rock band The Shins. The EP was released on the Omnibus Records label in 1998. According to one reviewer...

arsenide and germanium are also used. The obsolete thermionic diode is a vacuum tube with two electrodes, a heated cathode and a plate, in which electrons...

or an aspirator. An ejector operates on similar principles to create a vacuum feed connection for braking systems etc. The motive fluid may be a liquid...

target in straight lines and impact energetically on the substrates or vacuum chamber (causing resputtering). Alternatively, at higher gas pressures,...

space is lethal without appropriate protection: the greatest threat in the vacuum of space derives from the lack of oxygen and pressure, although temperature...

excavator, or vacuum excavator, is a construction vehicle that removes heavy debris or other materials from a hole on land using vacuuming. Suction excavators...

pipette types work by creating a partial vacuum above the liquid-holding chamber and selectively releasing this vacuum to draw up and dispense liquid. Measurement...

Ivanka Vacuuming was a piece of livestreamed performance art by American artist Jennifer Rubell which showed an Ivanka Trump look-alike vacuuming crumbs...

engine, Mach-effect or MEGA drives, quantum drive claims, and the quantum vacuum thruster. No reactionless drive has become an accepted propulsion technology...

Swedish multinational industrial company. It manufactures compressors, vacuum equipment, pumps, generators, assembly tools, quality assurance equipment...

acceleration). This is known as the principle of relativity. The speed of light in vacuum is the same for all observers, regardless of the motion of light source...

were sealed with grease and the air was pumped out, the sphere contained a vacuum and could not be pulled apart by teams of horses. Once the valve was opened...

other components free-flowing. Vacuum swing adsorption (VSA) uses the same principle as PSA but swings between vacuum pressures and atmospheric pressure...

named after William Stanley Jr. who invented the first all-steel insulated vacuum bottle in 1913. Stanley was established in 1915. The Stanley brand has since...

FOTON-M3 mission in low Earth orbit, where they were exposed to space's vacuum for 10 days, and reanimated, just by rehydration, back on Earth. In 2011...

can be described as a perturbation theory of the electromagnetic quantum vacuum. Richard Feynman called it "the jewel of physics" for its extremely accurate...

hot-filament gauge or hot-cathode gauge, is the most widely used low-pressure (vacuum) measuring device for the region from 10−3 to 10−10 Torr. It is a triode...

under the term vacuum casting. Vacuum pressure casting (VPC), properly referred to as vacuum assist direct pour, uses gas pressure and a vacuum to improve...

A triode is an electronic amplifying vacuum tube (or thermionic valve in British English) consisting of three electrodes inside an evacuated glass envelope:...

English engineer, best known for having invented one of the first powered vacuum cleaners. He also designed Ferris wheels, suspension bridges and factories...

structure surrounding the vacuum vessel and the superconducting magnets, with the purpose of providing a super-cool vacuum environment. Its thickness...

electrons is transformed into heat upon impact. EBW is often performed under vacuum conditions to prevent dissipation of the electron beam. Electron-beam welding...

deposit of reactive material that is placed inside a vacuum system to complete and maintain the vacuum. When gas molecules strike the getter material, they...

successful portable electric vacuum cleaner that revolutionized household carpet cleaning. His device was not the first vacuum cleaner, but it was the first...

process, a vacuum of 50–100 microbar is applied, by the vacuum system, to remove the solvent.[citation needed] A two-stage rotary vacuum pump is used...

The International Union for Vacuum Science, Technique, and Applications (IUVSTA) is a union of 35 science and technology national member societies that...

The van Musschenbroek vacuum pump is an instrument from the late 17th century constructed by the Dutch craftsman Johannes Joosten van Musschenbroek [nl]...

were prone to explosion unless carefully operated. Vacuum safety valves (or combined pressure/vacuum safety valves) are used to prevent a tank from collapsing...

easily. Today, modern street sweepers are mounted on truck bodies and can vacuum debris that accumulates in streets. The need for rubbish to be removed from...

A thermal cooker, or a vacuum flask cooker, is a cooking device that uses thermal insulation to retain heat and cook food without the continuous use of...

Company, was an vacuum cleaner manufacturing plant in Danville, Kentucky owned by Matsushita. The facility produced upright and canister vacuum cleaners, primarily...

vacua are usually labeled by the vacuum expectation values of scalar fields, as Lorentz invariance forces the vacuum expectation values of any higher...

hydrocarbons into products having higher quality performance. Atmospheric and vacuum distillation of crude oils are the main primary separation processes producing...

microorganisms; used extensively in the medical and food industries Vacuum cleaning, using a vacuum cleaner Some items and materials require specialized cleaning...

both for measuring the fluid flow and for moving other fluids (e.g. in a vacuum ejector). In inviscid fluid dynamics, an incompressible fluid's velocity...

pressures are necessary. To achieve these low pressures, a vacuum chamber is needed. The vacuum chamber typically includes windows so that the atoms can...

reflow can be augmented by the addition of a late-stage vacuum chamber.  Introducing a vacuum chamber to the reflow process allows voids and bubbles to...

hydrogen. Theoretically, an aerostatic vehicle could be made to use a vacuum or partial vacuum. As early as 1670, over a century before the first manned hot-air...

extremes of temperature, desiccation, impact, radiation, and exposure to the vacuum of space. In 1834, C.A.S. Schulze, giving the first formal description of...

The Flowbee is an electrically powered vacuum cleaner attachment made for cutting hair. It was developed and filed for patent in 1986 by Rick E. Hunts...

The two main kinds of filtration used in laboratories are gravity and vacuum/suction. Gravity filtration is often used in chemical laboratories to filter...

theorem, the Schwarzschild metric is the most general spherically symmetric vacuum solution of the Einstein field equations. A Schwarzschild black hole or...

turbomolecular pump is a type of vacuum pump, superficially similar to a turbopump, used to obtain and maintain high vacuum. These pumps work on the principle...

The Sprengel pump is a vacuum pump that uses drops of mercury falling through a small-bore capillary tube to trap air from the system to be evacuated....

The Black & Decker DustBuster (now stylized as dustbuster) is a cordless vacuum cleaner that was introduced in January 1979. Mark Proett and Carroll Gantz...

{D}}(\alpha )|0\rangle } where | 0 ⟩ {\displaystyle |0\rangle } is the vacuum state, D ( α ) {\displaystyle D(\alpha )} is the displacement operator and...

automatic vacuum brake. This system was similar to the simple vacuum system, except that the creation of vacuum in the train pipe exhausted vacuum reservoirs...

works only as part of a vacuum insulation system. For use in cryogenics, wrapped MLI can be installed inside the annulus of vacuum jacketed pipes. MLI may...

A fire hose vacuum is a small pneumatic device that removes residual air from the inside of a fire hose, thus making it smaller and somewhat rigid. This...

with an electron beam given off by a charged tungsten filament under high vacuum. The electron beam causes atoms from the target to transform into the gaseous...

necrosis of left femoral head. Man of 45 years with AIDS. The intravertebral vacuum cleft sign (at white arrow) is a sign of avascular necrosis. Avascular necrosis...

The Dirac sea is a theoretical model of the electron vacuum as an infinite sea of electrons with negative energy. It was first postulated by the British...

railways were divided–some using vacuum brakes and some using air brakes–but there was a gradual standardization on the vacuum brake. Some locomotives, e.g...

uranium enrichment plants. Typically, the test method uses a vacuum chamber, at vacuum pressures typically less than 100mTorr, in which a helium pressurized...

under vacuum. A vacuum bell jar is placed on a base which is vented to a hose fitting, that can be connected via a hose to a vacuum pump. A vacuum is formed...

the world's largest thermal vacuum chamber. It was originally commissioned for nuclear-electric power studies under vacuum conditions, but was later decommissioned...

to propose that our universe originated as a quantum fluctuation of the vacuum. Tryon was born and raised in Terre Haute, Indiana. He took his first physics...

induction and magnetizing force when forming a magnetic field in a classical vacuum. A closely related property of materials is magnetic susceptibility, which...

devices. Compared with the vacuum tube, transistors are generally smaller and require less power to operate. Certain vacuum tubes have advantages over...

Neyco is a French company founded in 1954, specialist in High Vacuum, UHV, Inorganic materials and thin films. Initially created to allow access to International...

propagation of matter or information faster than the speed of light in vacuum (c). The special theory of relativity implies that only particles with zero...

A Perfect Vacuum (Polish: Doskonała próżnia) is a 1971 book by Polish author Stanisław Lem, the largest and best known collection of Stanisław Lem's fictitious...

hydraulic connections from a pump or engine system, compressed air, and engine vacuum; or the engine may be directly tapped through a mechanical connection. Modern...

– May 7, 1985) was an American physicist specializing in vacuum tube research and high-vacuum systems. He is known for his 1936 discovery of the eponymous...

until the rubber cup is flattened. The cup is then pulled out, creating a vacuum to pull blockage material upward and dislodge waste or other material. The...

engines such as pulse engines or jet engines, so they can be used in a vacuum. Vehicles commonly propelled by rocket engines include missiles, artillery...

The penis pump is a vacuum pump that is used as an aid in cases of impotence, that is, when sufficient rigidity of the organ for engaging in sexual intercourse...

"sovereignty-vacuum theory", which states that Britain created a legal vacuum when it withdrew from its mandate over Palestine. The legal vacuum theory has...

placed along its periphery. The stream of air is provided by a vacuum system, driven by a vacuum pump, or a venturi. Air passing through the narrowest portion...

then over. However, it has been demonstrated that siphons can operate in a vacuum and to heights exceeding the barometric height of the liquid. Consequently...

of refraction), often denoted n, is the ratio of the speed of light in vacuum (c) to the speed of light in a given optical medium (v), n=c/v. The refractive...

centrifugal force acting as a seal. Liquid-ring pumps are typically used as vacuum pumps, but can also be used as gas compressors. The function of a liquid-ring...

and engine RPM. The vacuum switching valve (VSV) which controls the vacuum supply to the actuator is normally closed and passes vacuum to the actuator when...

contains ultra-low levels of particle densities, constituting a near-perfect vacuum of predominantly hydrogen and helium plasma, permeated by electromagnetic...

models are usually known as vacuum desiccators. When a vacuum is to be applied, it is a common practice to criss-cross the vacuum desiccator with tape, or...

delivery. Engine vacuum is the difference between the pressures in the intake manifold and ambient atmospheric pressure. Engine vacuum is a "gauge" pressure...

broadcasting was not established until the 1920s, following the development of vacuum tube receivers and transmitters. AM radio remained the dominant method of...

watt is a unit of measurement that represents the true suction power of vacuum cleaners. It is calculated by multiplying the airflow (in cubic metres per...

steels, and forged steels. All-metal gate valves are used in ultra-high vacuum chambers to isolate regions of the chamber. Bonnets provide leakproof closure...

to produce vacuum tubes. As time passed, production and elemental techniques of the vacuum tube transformed into the manufacturing of vacuum fluorescent...

floor-standing drives that used vacuum columns to buffer long U-shaped loops of tape. Between active control of powerful reel motors and vacuum control of these U-shaped...

anode and cathode is different for electrical devices such as diodes and vacuum tubes where the electrode naming is fixed and does not depend on the actual...

Messier 109 (also known as NGC 3992 or the Vacuum Cleaner Galaxy) is a barred spiral galaxy approximately 67.2 ± 23 million light-years away in the northern...

Thrust is a reaction force described quantitatively by Newton's third law. When a system expels or accelerates mass in one direction, the accelerated mass...

Wunderlich refers to a series of vacuum tubes introduced in the early 1930s. Wunderlichs were designed to be used as full-wave detectors in AM radio receivers...

solved the problem in 1935 by vacuumizing the system, which allowed a reduction in friction generated at high speeds. Vacuum systems also enabled the maintenance...

considerably higher frequency and power than were possible with conventional vacuum tubes/thermionic valves. This resulted in production of the "Heil tube"...

The Fetron was a range of solid-state, plug-compatible replacements for vacuum tubes (valves). Fetrons were manufactured by Teledyne Semiconductor from...

Rexair LLC is an American manufacturer of vacuum cleaners based in Troy, Michigan. Rexair is predominantly known for its production and marketing of a...

hard brush after it had dried. Vacuum metallizing involves heating the coating metal to its boiling point in a vacuum chamber, then letting condensation...

of light in vacuum. For optical signals, the velocity factor is the reciprocal of the refractive index. The speed of radio waves in vacuum, for example...

specializing in vacuum equipment and related products, headquartered in Chigasaki, Kanagawa, Japan. In 1952, the company was established as Japan Vacuum Engineering...

Iwata Kabushiki-gaisha) is a Japanese manufacturer of air compressors, vacuum pumps, spray guns, and coating systems used in industrial, automotive, and...

cordless vacuums, scrubbers, hair dryers, robotic lawn mowers, and robot vacuum cleaners and mops. The company specializes in the production of vacuum cleaners...

of other vacuum-tube oscillators. Vacuum-tube feedback oscillators became the basis of radio transmission by 1920. However, the triode vacuum tube oscillator...

American Vacuum Society and the International Union for Vacuum Science, Technique, and Applications". Journal of Vacuum Science & Technology A: Vacuum, Surfaces...

2015. The novel was reissued as a hardcover in 2018 by Simon & Schuster. Vacuum in the Dark, a sequel to Pretend I'm Dead, received a starred Kirkus review...

electron-beam furnace (EB furnace) is a type of vacuum furnace employing high-energy electron beam in vacuum as the means for delivery of heat to the material...

High Vacuum is a science fiction novel by Charles Eric Maine. It was first published in 1957 by Hodder & Stoughton. The first crewed Moon ship, Alpha,...

Galileo proposed that a vacuum held the water up and that it could not hold any more. At the time the existence of vacuums was controversial. Galileo's...

generations prior to its incorporation, developed steam cleaners and upright vacuums. In 2003, Rosenzweig moved the headquarters from Montreal to Needham, Massachusetts...

Electric, is an obsolete vacuum tube electronic oscillator circuit which uses a negative resistance characteristic in early tetrode vacuum tubes, caused by a...

12AX7 (also known as ECC83) is a miniature dual-triode vacuum tube with high voltage gain. Developed around 1946 by RCA engineers in Camden, New Jersey...

repeatedly return to the same house. Outside, they find a box containing vacuum-sealed, flavorless food. Tom sets the house on fire and the couple sleeps...

that in quantum field theory the virtual anti-electron contribution to the vacuum polarization would break the equivalence of inertial and gravitational mass...

experimental methods and repeatable demonstrations on the physics of the vacuum, atmospheric pressure, electrostatic repulsion, his advocacy for the reality...

however, much later it was revived to express the energy density of space, or vacuum energy, that arises in quantum mechanics. It is closely associated with...

pyrophoric start-up fuel capsule (triethylaluminium) Vacuum thrust: 7,887 kN (1,773,000 lbf) Vacuum Isp: 338 s (3.31 km/s) Sea-level Isp: 309 s (3.03 km/s)...

an American carpenter and inventor. He is known as the cofounder of the Vacuum Oil Company with business partner Hiram Bond Everest. Ewing was born January...

Vacuuming Completely Nude in Paradise is a 2001 comedy-drama film produced by the BBC in association with Destiny Films. It was directed by Danny Boyle...

sandwiches or on their own. They can be purchased canned, pre-sliced (usually in vacuum packs), or they can be sliced to order, most often in delicatessens and...

The 807 is a beam tetrode vacuum tube, widely used in audio- and radio-frequency power amplifier applications. 807s were used in audio power amplifiers...

slightly rotate, thereby advancing the ignition timing. Vacuum advance typically uses manifold vacuum to adjust the ignition timing, for example to improve...

reels by storing a short length of tape in the vacuum column under relatively low tension. The vacuum columns are chambers open at one end, the openings...

freeze dried. Fresh fruit is frozen and placed in a drying chamber under a vacuum. Heat is applied, and water evaporates from the fruit while it is still...

were primarily used on railways where vacuum brakes were used to brake the train, but where there was no vacuum brake on the steam locomotive itself,...

technology. When high tech gets old, it can become low tech–for example, vacuum tube electronics. Further, high tech is also in contrast to the concept...

Electric Export Corporation (or simply Western Electric) is a manufacturer of vacuum tubes and high end audio gear. Based in Rossville, Georgia, the company...

but can also flow through semiconductors, insulators, or even through a vacuum as in electron or ion beams. An old name for direct current was galvanic...

which unbonded sand is held in the flask with a vacuum. The pattern is specially vented so that a vacuum can be pulled through it. A heat-softened thin...

equalization devices, preamplifiers and amplifiers (both solid-state and vacuum tube), loudspeakers (including horn, electrostatic and magnetostatic speakers)...

fecal sludge must be periodically removed, which is commonly done with a vacuum truck. A septic tank consists of one or more concrete or plastic tanks of...

licensing agreements. Key technologies—including wireless transmission systems, vacuum tubes, and receiver circuits—were protected by patents held by individual...

The 845 power triode is a radio transmitting vacuum tube which can also be used as an audio amplifier and modulation tube. Typically, the plate is machined...

named because they are emitted by the negative electrode, or cathode, in a vacuum tube. To release electrons into the tube, they first must be detached from...

scroll compressor (also called spiral compressor, scroll pump and scroll vacuum pump) is a device for compressing air or refrigerant. It is used in air...

maximum thrust of 7,530 kN (1,690,000 lbf) and the upper stage's single vacuum optimized Archimedes at 1,110 kN (250,000 lbf). It was expected to have...

separates air from a vacuum by preventing the air from rushing into the vacuum. This scientific development can facilitate non-vacuum ion material modification...

Tung-Sol was an American manufacturer of electronics, mainly lamps and vacuum tubes. In 1904, the company started as a small business in New York City...

In 1974 she became the first woman to be elected president of American Vacuum Society and the first woman to serve as president of any scientific society...

the mid-1920s, amplifying vacuum tubes revolutionized radio receivers and transmitters. John Ambrose Fleming developed a vacuum tube diode. Lee de Forest...

sterile glass or plastic test tube with a colored rubber stopper creating a vacuum seal inside of the tube, facilitating the drawing of a predetermined volume...

spontaneous emission. In the presence of electromagnetic vacuum modes, the combined atom-vacuum system is explained by the superposition of the wavefunctions...

impedance of vacuum". The NIST Reference on Constants, Units, and Uncertainty. NIST. May 2024. Retrieved 2024-05-18. "2022 CODATA Value: vacuum electric permittivity"...

The Center for Advanced Materials (CAM), formerly the Space Vacuum Epitaxy Center, is a laboratory established in 1986 at the University of Houston for...

remotely starting industrial vacuum cleaners from power tools. Several power tools, cordless battery packs, and industrial vacuum cleaners ship with wireless...

several redundant streams. The lower part of a pellet stream has to be in a vacuum tube to avoid excessive drag in the atmosphere. Similar to the top station...

an observer who is uniformly accelerating through empty space (Minkowski vacuum) will perceive a thermal bath. This means that even in the absence of any...

Dongqi founded Ecovacs Robotics as an original equipment manufacturer for vacuum cleaners under the name TEK Electrical Company. The company rebranded in...

conveyed by vacuum sewer. Pipelines range in size from pipes of 125 millimetres (4.9 in) in diameter up to 280 millimetres (11 in) in diameter. Vacuum sewer...

almost 40 years. The company was initially called Vacuum Chronometer Corp., which manufactured vacuum watches (sold under several well-known trademarks)...

here the uncertainty depends on phase and is squeezed for some phases. The vacuum state (d) is a special coherent state and is not squeezed. It has zero mean...

or onto a mold and cooled to a finished shape. Its simplified version is vacuum forming. In its simplest form, a small tabletop or lab size machine can...

customers) Pressure vacuum breaker assembly (PVB) Reduced pressure zone device (RPZ) Spill resistant pressure vacuum breaker assembly (SPVB) Vacuum breaker Backflow...

non-ferrous metals Zirconium Magnesium Carbon Tungsten Vacuum deoxidation is a method which involves using a vacuum to remove impurities. A portion of the carbon...

may also be used to treat overjets. Removable retainers include Hawley, Vacuum-formed, Begg and Barrer. They provide orthodontic retention when worn and...

album included a bonus 3" CD, Vacuum Tracks. This bonus material consists of five drone tracks similar to the track "Vacuum Garden". The song "Hello Meow"...

contributions to the study of fluids, and clarified the concepts of pressure and vacuum by generalising the work of Evangelista Torricelli. The SI unit for pressure...

place metal plate over a die, with the intervening space evacuated by a vacuum pump, place the whole assembly underwater, and detonate a charge at an appropriate...

similar metal would strongly adhere if brought into contact while in a vacuum . Micro and nano-scale cold welding has shown potential in nanofabrication...

SF6, or natural-origin gases) or in another insulating medium (oil or vacuum). Immediately after contact separation, the current continues to flow in...

and similar specialty metal industries. Vacuum arc remelting (VAR) is a secondary remelting process for vacuum refining and manufacturing of ingots with...

a maximum electric field or magnetic field before nonlinearity for the vacuum of E c = m e 2 c 3 q e ℏ ≃ 1.32 × 10 18 V / m {\displaystyle E_{\text{c}}={\frac...

The RCA BIZMAC was a vacuum-tube computer manufactured by RCA from 1956 to 1962. Although RCA was noted for their pioneering work in transistors, the company...

energy between the lowest energy state, the vacuum, and the next lowest energy state. The energy of the vacuum is zero by definition, and assuming that all...

sublimation pump (TSP) is a type of vacuum pump used to remove residual gas in ultra-high vacuum systems, maintaining the vacuum. Its construction and principle...

in a vacuum. The three main types of vacuum furnace are: single-wall hot retort, double-walled hot retort, and cold-wall retort. Typical vacuum levels...

fluid left on an infant's head after they have been delivered by vacuum extraction. A vacuum extraction is a type of assistance used during vaginal delivery...

created neutron star (if one was created), creating a supernova. A high vacuum exists within all cathode-ray tubes. If the outer glass envelope is damaged...

gas-phase reactions and improve film uniformity across the wafer. Ultrahigh vacuum CVD (UHVCVD) – CVD at very low pressure, typically below 10−6 Pa (≈ 10−8...

used in childbirth. Their use can serve as an alternative to the ventouse (vacuum extraction) method. Forceps births, like all assisted births, should be...

The Taub–NUT metric (/tɔːb nʌt/, /- ˌɛn.juːˈtiː/) is an exact solution to Einstein's equations. It may be considered a first attempt in finding the metric...

Goldberg–Sachs theorem is a result in Einstein's theory of general relativity about vacuum solutions of the Einstein field equations relating the existence of a certain...

Dewar Dewar (caste), a fishing caste from India Vacuum flask, also known as a Dewar flask, a vacuum-insulated container used to maintain internal temperature...

The locomotive was equipped with a No. 40 combination ejector and two vacuum brake cylinders, each 15 inches (381 millimetres) in diameter. In c. 1896...

basin, producing a Torricellian vacuum above. This was also the first recorded incident of creating permanent vacuum. A second unambiguous prediction...

trigger allergy and asthma symptoms. For a HEPA filter in a vacuum cleaner to be effective, the vacuum cleaner must be designed so that all the air drawn into...

The Audion is an electronic detecting or amplifying vacuum tube invented by American electrical engineer Lee de Forest as a diode in 1906. Improved, it...

products, including: Cordless Vacuum Cleaner NEX Cordless Vacuum Cleaner F8 Cordless Vacuum Cleaner F8 Lite LiteMattress Vacuum Cleaner History of Xiaomi...

feet (69 m) below ground. Enclosed within the concrete tower is a vertical vacuum tube with 3-foot-thick walls. The optical path starts at a heliostat on...

Compactrons are a type of vacuum tube, which contain multiple electrode structures packed into a single enclosure. They were designed to compete with early...

boiling points and are sensitive to air. A simple vacuum distillation system can be used, whereby the vacuum is replaced with an inert gas after the distillation...

designed to test certain characteristics of vacuum tubes (thermionic valves). Tube testers evolved along with the vacuum tube to satisfy the demands of the time...

to a vacuum can be found in both space exploration and high-altitude aviation. Research and experience have shown that while exposure to a vacuum causes...

An X-ray tube is a vacuum tube that converts electrical input power into X-rays. The availability of this controllable source of X-rays created the field...

sometimes called physical vapor transport (PVT), describes a variety of vacuum deposition methods which can be used to produce thin films and coatings...

amplifier or tube amplifier is a type of electronic amplifier that uses vacuum tubes to increase the amplitude or power of a signal. Low to medium power...

pumping systems, to allow for the transfer of the electron beam from the high vacuum in the gun area to the high pressure attainable in its specimen chamber...

to treat erectile dysfunction (ED). When used for ED, a purpose-designed vacuum pump is used to produce an erection by simple mechanical and hydrodynamical...

be divided into "air-to-vacuum" engines, which start their work at sea level and finish it at vacuum conditions, and "vacuum" engines, which perform all...

e., energy) needed to remove an electron from a solid to a point in the vacuum immediately outside the solid surface. Here "immediately" means that the...

amplify was the triode vacuum tube, invented in 1906 by Lee De Forest, which led to the first amplifiers around 1912. Vacuum tubes were used in almost...

shielding electrodes in vacuum circuit-breakers (PDF). 20th International Symposium on Discharges and Electrical Insulation in Vacuum. Archived from the original...

experiments about lifting weight using vacuum. Otto von Guericke researched vacuum practically, but used pumps to create the vacuum. Robert Hooke did hide a phrase...

Executor Plus engine that it uses a larger exhaust nozzle optimized for vacuum operation. The Executor Plus is used on the Haas 2 air-launched rocket and...

served as a chairman of the MEMS and NEMS Technical Group at the American Vacuum Society (AVS) from 2002 to 2004. He also served as the Technical Program...

popularity outside of Russia. In 2014, after the release of their second EP Vacuum, IC3PEAK performed at their first overseas concerts in European cities such...

gases, compressed air, irrigation, plastic pressure pipe systems, and vacuum system applications. There are three basic types of plastic pipe: Extruded...

the axis for sample rotation, and is a vacuum-tight conduit for the vapor being drawn off the sample. A vacuum system, to substantially reduce the pressure...

Western Electric in the US began marketing vacuum tube hearing aids in 1923. During the 1920s and 1930s, the vacuum tube hearing aid became more successful...

include: Oxygen Medical air Nitrous oxide Nitrogen Carbon dioxide Medical vacuum Waste anaesthetic gas disposal (WAGD; US usage) or anaesthetic gas scavenging...

PVLAS (Polarizzazione del Vuoto con LASer, "polarization of the vacuum with laser") aims to carry out a test of quantum electrodynamics and possibly detect...

combustion engine. The system usually consists of a tube, a one-way valve and a vacuum source (such as the inlet manifold). The unwanted gases, called blow-by...

action of these generators, and can thus be excited out of the asymmetric vacuum by these generators. Thus, they can be thought of as the excitations of...

used as it gives far superior insulation, and sometimes other gases or a vacuum are employed. Possibly the earliest use of double glazing was in Siberia...

they are O-plasma vacuum cleaned (and/or vacuum baked) to reach out-gassing performance similar to Teflon while reaching vacuum leak tightness (permeability...

physical design format. The unit features a blue-green, light-emitting vacuum fluorescent display (VFD). The display device itself has 9 seven segment...

business. Petron's history dates back to September 7, 1933, when Socony-Vacuum Oil Company (Standard Oil of New York) and Standard Oil of New Jersey (also...

ventures in Russia under the brand name Sovtek. Sovtek's success selling vacuum tubes for guitar amplifiers and audio systems allowed Matthews to recover...

Hlava v písku (Head in Sand; 2013) Hvězda (The Star; 2013) Vysavač (The Vacuum Cleaner; 2015) 4 sestry (4 Sisters; 2016) Líbánky na Jadranu (An Adriatic...

building codes to have it installed. Thermostatic mixing valve Atmospheric vacuum breaker US3674048A, Manoogian, Alex & Pullen, Eric V., "Mixing valve", issued...

equipment was built using vacuum tubes, microphonics were often a serious design problem. The charged elements in the vacuum tubes can mechanically vibrate...

elements occurring at different points in the timeline. The story anthologies (Vacuum Diagrams, Resplendent, and Xeelee: Endurance) each contain stories taking...

A molecular drag pump is a type of vacuum pump that utilizes the drag of air molecules against a rotating surface. The most common sub-type is the Holweck...

Vacuum-assisted breast biopsy (VAB) is a minimally invasive procedure (biopsy) to help in the diagnosis of breast cancer. VAB is characterized by single...

WBCN Rock & Roll Rumble in 1983. Their original composition "Love in a Vacuum" (credited to all members of the group) received a fair amount of airplay...

pressure and no expansion at all; i.e. the throat exhausts straight to vacuum without any diverging nozzle at all. The effective exhaust velocity would...

electron in the vacuum as a reference point for energies. This approach is not advisable unless one is careful to define exactly where the vacuum is. The problem...

more stable than ordinary vacuum, dubbed "novo-vacuum", that expands outward at half the speed of light as ordinary vacuum collapses to this new state...

his postulation of the magnetic-field-induced superconductivity of the vacuum. Chernodub attended Lycée 145 in Kyiv from 1980 to 1990. He earned a bachelor's...

the company's main products include security surveillance cameras, robot vacuum cleaners, smart lighting, and other smart home IoT products. eufy's products...

which uses discrete transistors instead of vacuum tubes. The first generation of electronic computers used vacuum tubes, which generated large amounts of...

that operates under vacuum, such as a lyophilizer. Today, however, these gauges have largely been replaced by electronic vacuum gauges. The design of...

apparatus. A Büchner flask is a common design modification for filtration under vacuum. The slanted sides and narrow neck of this flask allow the contents of the...

Coated Powerstroke 3; Bottoms: Ebony Ambassador Fishman's Vacuum-A baby blue Electrolux vacuum cleaner (a.k.a. the vac or 'lux) has been in the repertoire...

the vacuum homogeneously across the external surfaces and to avoid any folds of the vacuum bag being transferred to the laminate surface; the vacuum bag...

Gaede (25 May 1878 – 24 June 1945) was a German physicist and pioneer of vacuum engineering. Gaede was born in Lehe, Bremerhaven, the son of Prussian Colonel...

time-varying signals. Many electronic devices, such as diodes, transistors and vacuum tubes, whose function is processing time-varying (AC) signals, also require...

elimination of voids by placing the layup within a closed mold and applying vacuum, pressure, and heat by means other than an autoclave. A resin transfer molding...

principle, which allows the virtual particles to spontaneously emerge from vacuum at short time and space ranges. The concept of virtual particles arises...

A Büchner flask, also known as a vacuum flask, filter flask, suction flask, side-arm flask, or Bunsen flask, is a thick-walled Erlenmeyer flask with a...

different types of breast biopsies include fine-needle aspiration (FNA), vacuum-assisted biopsy, core needle biopsy, and surgical excision biopsy. Breast...

"Telefunken AG"). During the Second World War, Telefunken was a supplier of vacuum tubes, transmitters and radio relay systems, and developed Funkmess facilities...

designing and manufacturing cordless home and garden appliances such as vacuum cleaners, floor sweepers, grass trimmers, lawn mowers, hedge trimmers and...

manufactured by Stax Ltd. Stax currently produces six solid-state and three hybrid vacuum-tube/solid-state hybrid earspeaker driver units. Stax currently does not...

a microdistillery in Highgate, London. It distills its spirits under a vacuum in glassware, and thus at a lower temperature than traditional pot stills...

Radiola III regenerative broadcast receiver. By using a pair of low-power vacuum tubes in push–pull configuration, the amplifier allowed the use of a loudspeaker...

vacuum filters came into use, followed by belt filter presses and centrifuge techniques in the 1960s. Sludge drying beds Sludge sedimentation Vacuum filtration...

of exponential expansion that was driven by a positive vacuum energy density (negative vacuum pressure). The results of the WMAP mission in 2006 made...

Penetron (a 2 colour see-through CRT) A vacuum tube is based on current conduction through a vacuum (see Vacuum tube). Diode or rectifier tube Amplification...

generation, including temperature-controlled resistors, temperature-limited vacuum diodes, Zener diodes, and gas discharge tubes. A source that can be switched...

light to travel 1 foot in vacuum. 3.3356409519815 nanoseconds (by definition) – time taken by light to travel 1 metre in vacuum. 8 nanoseconds – typical...

debate during his life was whether a vacuum could be created. The commonly held view was that nature abhorred a vacuum horror vacui. There was speculation...

fire engine uses a vacuum to draw water from a portable water tank, pool, or other static water source. It is built to withstand vacuum, rather than pressure...

medium-voltage AC motor controllers use vacuum contactors. High voltage AC contactors (greater than 1,000 volts) may use vacuum or an inert gas around the contacts...

sale of two household products (Thermomix, a kitchen appliance; Kobold, a vacuum cleaner) mainly via direct sales. Akf Bank, founded in 1968, is a subsidiary...

city's renewal projects and purchases a vacuum cleaner to tidy his apartment. At night he overhears his new vacuum coughing, and in the morning finds that...

help to establish and maintain vacuums by soaking up or bonding to gas molecules that remain within a partial vacuum. This is done through the use of...

design used in Schlenk lines which permit the application of inert gas and vacuum from the same stopcock. Stopcocks are often parts of laboratory glassware...

typically designed for process control and contamination monitoring in vacuum systems. When constructed as a quadrupole mass analyzer, there exist two...

The KT88 is a beam tetrode/kinkless tetrode (hence "KT") vacuum tube for audio amplification. The KT88 fits a standard eight-pin octal socket and has similar...

producer. He has contributed songs and productions for artists such as Vacuum, The Canadian Tenors, Andy Taylor (guitarist), Tarja Turunen, Tina Arena...

substance. Outgassing is a challenge to creating and maintaining clean high-vacuum environments. NASA and ESA maintain lists of materials with low-outgassing...

stop a motor vehicle. It uses a combination of mechanical components and vacuum assistance to multiply the pressure applied to the brake pedal by the driver...

considerably reduces the number of coupling constants in the action. Superfluid vacuum theory Causal dynamical triangulation Problem of time Hořava, Petr (2009)...

better than 1 nanometer. Specimens are observed in high vacuum in a conventional SEM, or in low vacuum or wet conditions in a variable pressure or environmental...

was presented in 1941 by E. O. Seiler. The original implementation used a vacuum tube in an Electron-coupled oscillator circuit. Like the Clapp oscillator...

just 25 Ω/V, a non-linear scale and no zero adjustment on both ranges. Vacuum tube voltmeters or valve voltmeters (VTVM, VVM) were used for voltage measurements...

expected thrust was increased to 190 kN. Version of TEPREL-C adapted to vacuum, and capable of re-ignition in microgravity conditions. Capable of 75 kN...

applications, including water supply, drainage, sewers, vents, central vacuum systems, compressed air and gas lines, heating and air conditioning, sump...

The Swedish Vacuum Solar Telescope (SVST) was a 47.5-cm solar telescope on La Palma in the Canary Islands. It was removed on 28 August 2000, and has been...

silicon, while the thermionic vacuum tubes it replaced worked by controlling a current of electrons or ions in a vacuum within a sealed tube. Although...

first time in 1924. The discovery of a partial vacuum in the colon during nauli was named the Madhavdas Vacuum after Madhavdas by Swami Kuvalayananda. Tiwari...

Airgap is a technique invented by IBM for fabricating small pockets of vacuum in between copper interconnects. The technique belongs to a general class...

corrosion on the rails caused by human waste. They were replaced with bio-vacuum toilets, which use bacteria to decompose human waste, fulfilling a phaseout...

current to flow between the cathode and anode electrodes. The vacuum version is called a vacuum krytron, or sprytron. The krytron was one of the earliest...

solution and then vacuuming it up. So, in one pass over the floor, a user can dispense a cleaning agent, scrub it into the floor, then vacuum it all up with...

purpose of his experiment is to prove that the source of "horror of the vacuum" by nature comes from atmospheric pressure. For much of human history, the...

usually carried out mechanically using suction, by specialised tankers called vacuum trucks. "Gong" is derived from the Old English gang, meaning "to go". The...

introduced in 1981 by the Royal Appliance Manufacturing Co, an American vacuum cleaner and floor care company. The company and the brand are now owned...

discovery of the ultraviolet radiation with wavelengths below 200 nm, named "vacuum ultraviolet" because it is strongly absorbed by the oxygen in air, was made...

contains an extra term responsible for the electric polarization of the vacuum. This potential was found by Edwin Albrecht Uehling in 1935. Uehling's corrections...

Center vortices are line-like topological defects that exist in the vacuum of Yang–Mills theory and QCD. There is evidence in lattice simulations that...

It can also be connected to a septic tank. A vacuum toilet is a flush toilet that is connected to a vacuum sewer system, and removes waste by suction....

leisure hours or during the weekend, people may feel a sense of "existential vacuum" and emptiness. In political philosophy, emptiness is associated with nihilism...

the years, from hydraulic, pneumatic, and electromechanical clutches to vacuum-operated, electromagnetic, and even centrifugal clutches. Fluid couplings...

of the apparently wave-based light to propagate through empty space (a vacuum), something that waves should not be able to do. The assumption of a spatial...

sewerage Storm drain Sanitary sewers not relying solely on gravity include: Vacuum sewer Effluent sewer Pressure sewer Where a sewerage system has not been...

for its robotic sweeping and mopping devices and handheld cordless stick vacuums. Xiaomi played a key role in the company's founding. Beijing Roborock Technology...

but an operating theater is generally equipped with a central system of vacuum tubes. Most aspirators are therefore portable, for use in ambulances and...

name of vacuum cleaners made by Stein & Co GmbH, a company based in the German town of Velbert. They produce a range of upright and cylinder vacuum cleaners...

on 6 April 1994 ignited the genocide, as Hutu extremists used the power vacuum to target Tutsi and moderate Hutu leaders. Despite the scale of the atrocities...

Time-Resolved Intensity Patterns of the Radiation from Various Regions of a Vacuum Spark Discharge." His doctoral committee included W. Wallace McCormick,...

electrodynamic tethers) or cooling. Thermionic vacuum tubes emit electrons from a hot cathode into an enclosed vacuum and may steer those emitted electrons with...

psia is assumed. Li, Yulin. "The ins and out of man-made and natural vacuums". Ask A Scientist!. Cornell Center for Materials Research. Archived from...

business salesman, and speaker. He founded Oreck Corporation, manufacturers of vacuum cleaners and air purifiers, and was known for his appearances in its television...

CA (Casa Chica). Einziger began crafting an orchestral composition "End.>vacuum" following surgery in March 2007 for carpal tunnel syndrome, a repetitive-strain...