The term Brownian motion (in honor of the botanist Robert Brown) refers to either The physical phenomenon that minute particles immersed in a fluid move about randomly; or The mathematical models used to describe those random movements. The mathematical model can also be used to describe many phenomena not resembling (other than mathematically) the random movement of minute particles. An often quoted example is stock market fluctuations. Another example is the evolu ...

Including:

• Brownian motion - History
• Brownian motion - Intuitive metaphor for Brownian motion
• Brownian motion - Description of the mathematical model
• Brownian motion - Modelling the Brownian motion using differential equations
• Brownian motion - Mathematical Brownian motion
• Brownian motion - Physical Brownian motion

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Food is any substance that can be consumed, including liquid drinks. Food is the main source of energy and of nutrition for animals, and is usually of animal or plant origin. The study of food is called food science. In English, the term food is often used metaphorically or figuratively, as in food for thought. Food - Legal definition. Western food law defines four categories of object as food: any substance or product, whether processed, partially processed or unprocessed, ...

Including:

• Food - Legal definition
• Food - Human eating habits
• Food - Historical development
• Food - Meals
• Food - Food production or acquisition
• Food - From plants
• Food - From animals
• Food - From neither animals or plants
• Food - Food preparation
• Food - Food manufacture
• Food - Food trade
• Food - Food retailing
• Food - Food sufficiency
• Food - Food safety
• Food - Dietary habits
• Food - Nutrients in food

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Petroleum (from Greek petra – rock and oleum – oil), crude oil, sometimes colloquially called black gold, is a thick, dark brown or greenish liquid. A widely believed myth is that the oil itself is flammable; however, it is actually the gas that evaporates from the oil that is flammable. Petroleum exists in the upper strata of some areas of the Earth's crust. Another name is naphtha, from Persian naft or nafátá (to flow). It consists of a complex mixture of various hydrocarbons, l ...

Including:

• Petroleum - Origin
• Petroleum - Biogenic theory
• Petroleum - Abiogenic theory
• Petroleum - Composition
• Petroleum - Extraction
• Petroleum - Alternate means of producing oil
• Petroleum - History
• Petroleum - Environmental effects
• Petroleum - Future of oil
• Petroleum - Classification
• Petroleum - Pricing
• Petroleum - Top petroleum-producing countries
• Petroleum - Books about the petroleum industry
• Petroleum - Films about petroleum
• Petroleum - Writers covering the petroleum industry

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Boron trifluoride (BF3, trifluoroborane) is a pungent colourless toxic gas. In moist air it forms white fumes. Boron trifluoride can be handled as a liquid in a Lewis acid-base adduct with diethyl ether. The molecule BF3 consists of boron and fluorine in a trigonal planar geometry. Boron is electron deficient and in chemical reactions BF3 is a Lewis acid, for example reacting with fluorides to form tetrafluoroborate ...

Including:

• Boron trifluoride - Uses

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Eucalyptol is a natural organic compound which is a colorless liquid. It is a cyclic ether and a monoterpene. Eucalyptol is also known by a variety of synonyms: 1,8-cineol, limonene oxide, cajeputol, 1,8-epoxy-p-menthane, 1,8-oxido-p-menthane, eucalyptol, eucalyptole, 1,3,3-trimethyl-2-oxabicyclo[2,2,2]octane, cineol, cineole. Eucalyptol comprises about 85 percent of the essential oil of eucalyptus, hence the common name of the compound. It is also found in bay leaves, mugwort, sweet basil, wormwood, rosemary, sage and o ...

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Gasoline is a petroleum-derived liquid mixture consisting primarily of hydrocarbons, used as fuel in internal combustion engines. Gasoline - Chemical analysis and production. Gasoline is produced in oil refineries. These days, material that is simply separated from crude oil via distillation, called natural gasoline, will not meet the required specifications (in particular octane rating; see below) for modern engines, but these streams will form part of the blend. The bulk of a typical gasoline consi ...

Including:

• Gasoline - Chemical analysis and production
• Gasoline - Volatility
• Gasoline - Octane rating
• Gasoline - Dangers
• Gasoline - Energy content
• Gasoline - Additives
• Gasoline - Lead
• Gasoline - MMT
• Gasoline - Oxygenate blending
• Gasoline - History
• Gasoline - Pharmaceutical
• Gasoline - Etymology
• Gasoline - World War II and octane
• Gasoline - Current use
• Gasoline - Stability

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The phrase "adequately wet" is an environmental term referring to asbestos containing material that is sufficiently mixed or penetrated with liquid to prevent the release of particulates. Other related archivesasbestos, liquid, particulates

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BLEVE, pronounced blevy, is an acronym for Boiling Liquid Expanding Vapour Explosion. This is a type of explosion that can occur when a vessel containing a pressurized liquid is ruptured. Such explosions can be extremely hazardous. When the liquid is water, the explosion is usually called a steam explosion. A BLEVE can occur in a vessel that stores a substance that is usually a gas at atmospheric pressure but is a liquid when pressurized (for example, liquefied petroleum gas). The substance will be stored partly in liquid form, with a gaseous vapour above the li ...

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Büchner funnel is a piece of laboratory equipment used in filtration. It is traditionally made of porcelain, but these days plastic funnels are also available. On top of the funnel-shaped part there is a cylinder with a perforated plate separating it from the funnel. The filtration material, often filter paper, is placed on the plate. The liquid to be filtered is poured into the cylinder and drawn through ...

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This article is in need of attention. You can help Wikipedia by editing it into a better article. Please also consider changing this notice to be more specific. Aurora is the popular name for a hypothesised American reconnaissance aircraft, believed by some to be capable of hypersonic flight at speeds of Mach 5 or greater. According to the hypothesis, the Aurora was developed in the 1980s or 1990s as a replacement for the aging and expensive SR-71 Blackbird. "Aurora" appeared below the ...

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• Aurora aircraft - Literature

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Atmospheric drag is a form of drag, which is the force that opposes an object moving through a liquid or gas. In astrodynamics depending on the situation atmospheric drag can be regarded as inefficiency requiring expense of additional energy during launch of the space object or as a bonus simplifying return from orbit. Atmospheric drag - Calculation. Atmospheric drag can be calculated as follows: where: cdIncluding:

• Atmospheric drag - Calculation

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Bain-marie or Mary's bath is a method utilised in industry (phamaceutical, cosmetics, conserves, etc.), chemical laboratories and in the kitchen to slowly warm or convey uniform temperature to a liquid or solid substance, by submerging the container into a larger one with boiling or near boiling water. The main concept here is that of bath which implies indirect heating of a substance. Heat transfer to the medium (water of the bath) is by convection, while conduction is the process involved in the wa ...

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• Bain-marie - Culinary applications

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Barotrauma is physical damage to body tissues caused by a difference in pressure between an air space inside or beside the body and the surrounding gas or liquid. Barotrauma typically occurs to air spaces within a body when that body moves to or from a higher pressure environment, such as when a SCUBA diver, a free-diving diver or an airplane passenger ascends or descends. Boyle's law defines the relationship between the ...

Including:

• Barotrauma - Diving barotrauma
• Barotrauma - Types of injury
• Barotrauma - Squeeze
• Barotrauma - Causes
• Barotrauma - Equalising

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Boiling is the rapid vaporization of a liquid, which typically occurs when a liquid is heated to a temperature such that its vapor pressure is above that of the surroundings, such as air pressure. Thus, a liquid may also boil when the pressure of the surrounding atmosphere is sufficiently reduced, such as the use of a vacuum pump or at high altitudes. Boiling occurs in three characteristic forms, which are nucleateIncluding:

• Boiling - Boiling in cookery

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The Mars trilogy is a series of three science fiction novels by Kim Stanley Robinson, chronicling the settlement and terraforming of the planet Mars. The novels are Red Mars (1992), Green Mars (1993) and Blue Mars (1996). An additional collection of short stories was published as The Martians (1999). Mars trilogy - Awards. Red Mars won the BSFA Award in 1992 and the SFWA's Nebula Award in 1993. Green Mars won the Hugo Award in 1994. Blue M ...

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• Mars trilogy - Awards
• Mars trilogy - Plot
• Mars trilogy - Characters
• Mars trilogy - Other characters
• Mars trilogy - Quotes

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A birdfeeder, bird feeder, or bird table is a device placed out-of-doors to supply food to birds. The success of a birdfeeder in attracting birds depends on its placement and the kinds of seeds offered, as different species have different preferences. The most familiar feeders supply seeds such as millet, sunflower, safflower, thistle (niger or nyjer), and rapeseed or canola seed, to seed-eating birds. Hummingbird feeders, rather than dispensing seed, supply liquid nourishment to hummingbirds, ...

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In physics, buoyancy is an upward force on an object immersed in a fluid (i.e. a liquid or a gas), enabling it to float or at least to appear lighter. Buoyancy is important for many vehicles such as boats, ships, balloons, and airships. Buoyancy - Forces and equilibrium. The buoyancy provides an upward force on the object. According to Newton's first law of motion, if the upward forces (including the buoyancy) balance the downward forces (including the weight) the object will remain at rest. Otherwise, it w ...

Including:

• Buoyancy - Forces and equilibrium
• Buoyancy - Archimedes' Principle
• Buoyancy - Density
• Buoyancy - Acceleration
• Buoyancy - Links

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Aramid fiber (1961) is a fire-resistant and strong synthetic fiber. It is used in aerospace and military applications, for "bullet-proof" body armor fabric, and as an asbestos substitute. The term is a shortened form of "aromatic polyamide". A well-known type of aramid fiber (a para-aramid nylon) is commonly known by its DuPont trade name, Kevlar, or Teijin trade name Twaron. It was developed by Stephanie Kwolek. An especially fireproof meta variant is Nomex. Aramid - Aramid fiber characteristics. Including:

• Aramid - Aramid fiber characteristics
• Aramid - Major industrial uses
• Aramid - Production

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Acetic acid, also known as ethanoic acid, is an organic chemical compound best recognized for giving vinegar its sour taste and pungent smell. Pure water-free acetic acid is a colourless hygroscopic liquid (that is, it readily absorbs water) that freezes below 16.7 °C (62 °F) to a colourless crystalline solid. Acetic acid is corrosive, and its vapour is irritating to eyes and nose, although it is a weak acid based ...

Including:

• Acetic acid - Nomenclature
• Acetic acid - History
• Acetic acid - Chemical properties
• Acetic acid - Biochemistry
• Acetic acid - Production
• Acetic acid - Methanol carbonylation
• Acetic acid - Acetaldehyde oxidation
• Acetic acid - Ethylene oxidation
• Acetic acid - Fermentation
• Acetic acid - Applications
• Acetic acid - Vinyl acetate monomer
• Acetic acid - Acetic anhydride
• Acetic acid - Ester production
• Acetic acid - Vinegar
• Acetic acid - Use as solvent
• Acetic acid - Other applications
• Acetic acid - Safety

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Accretion is increase in size by gradual addition of smaller parts. This term is used in the following fields: In atmospheric science for growth of a precipitation particle by the collision of an ice crystal or snowflake with a supercooled liquid droplet that freezes upon impact. In astrophysics, accretion is the gravitational process by which bodies such as planets and stars form from gas and dust. See accretion theory, accretion disc. Other related

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ATLAS (A Toroidal LHC ApparatuS) is one of the five particle detector experiments (ALICE, ATLAS, CMS, TOTEM, and LHCb) being constructed at the Large Hadron Collider, a new particle accelerator at CERN in Switzerland. It will be 45 metres long and 25 metres in diameter, and will weigh about 7,000 tonnes. The project involves roughly 2,000 scientists and engineers at 151 institutions in 34 countries. The construction is scheduled to be completed in 2007. The experiment is expecte ...

Including:

• ATLAS experiment - Background
• ATLAS experiment - Physics program
• ATLAS experiment - Components
• ATLAS experiment - Inner Detector
• ATLAS experiment - Calorimeters
• ATLAS experiment - Muon spectrometer
• ATLAS experiment - Magnet system
• ATLAS experiment - Data systems and analysis

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