The biggest advantage that air brakes have over vacuum brakes is that the maximum pressure is 70psi instead of only 17psi. Air brake equipment can thus also be smaller and lighter. This advange increases at high altitude, e.g. Peru. The main advantage for vacuum brakes is that the vacuum can be created by a steam ejector with no moving parts, whereas an air brake system requires a noisy pump. By and large, the vacuum brake has lost the battle for new systems, and many vacuum braked systems change ...

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Brake railway, Brake railway - Air versus Vacuum brakes, Brake railway - Air brake enhancements, Brake railway - Accidents with brakes

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Seabrook, Jeremy (1996). In the Cities of the South:scenes from a developing world, London ; New York : Verso. ISBN 1859849865. ...

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Amphetamine, Amphetamine - Pharmacology, Amphetamine - Medicinal use, Amphetamine - Performance enhancing use, Amphetamine - Effects of use, Amphetamine - Physiological effects, Amphetamine - Legal issues, Amphetamine - Books, Amphetamine - Notes

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The input to a two-dimensional NPR system is most commonly an image; however, there are systems that take 3D geometry information as input and produce a 2D image or video as output. Again, many of the systems are intended to mimic a desired artistic style, such as watercolor, impressionism, or pen and ink drawing. Non-photorealistic rendering - NPR for Enhancing Legibility. The most useful illustrations in technical illustrations are not necessarily photorealistic. Non-photorealistic renderings, such as exploded v ...

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Non-photorealistic rendering, Non-photorealistic rendering - Three-Dimensional NPR Techniques, Non-photorealistic rendering - Two-Dimensional NPR Techniques, Non-photorealistic rendering - NPR for Enhancing Legibility, Non-photorealistic rendering - Interactive Techniques, Non-photorealistic rendering - Simulating the Artistic Media, Non-photorealistic rendering - The Artistic Process

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The Omega class is a heavy warship which serves many of the primary functions for the post-Minbari War 'Earth Alliance' military. It is a heavily-armed front line destroyer that also carries several squadrons of Starfuries for fighter support. The class was developed following the Earth-Minbari war and is based heavily on the design of the older Nova class dreadnought. However, the Omega-class destroyers are significantly longer than the dreadnought due to the addition of a central rotating section that provides a 1-g, simulated gravi ...

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Omega class destroyer, Omega class destroyer - Omega Class, Omega class destroyer - Special Note on the Origin of the Class, Omega class destroyer - Shadow Enhanced Omega Class Ships, Omega class destroyer - Known Omega Class Vessels

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The main component of lapis lazuli is lazurite (25 to 40 percent), a feldspathoid silicate mineral composed of sodium, aluminium, silicon, oxygen, sulfur, and chlorine. Most lapis also contains calcite (white), sodalite (blue) and pyrite (yellow). Other possible constituents are augite, diopside, enstatite, mica, hauynite, hornblende and nosean. Lazurite's formula is (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2 [1]. Lapis lazuli usually occurs in crystalline limestones as a result of ...

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Lapis lazuli, Lapis lazuli - Description, Lapis lazuli - Uses, Lapis lazuli - Enhancements, Lapis lazuli - Imitations, Lapis lazuli - History, Lapis lazuli - Metaphysical qualities, Lapis lazuli - Sources, Lapis lazuli - Poetry

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Lapis takes an excellent polish and has been made into jewelry, carvings, boxes, mosaics, ornaments and vases. In architecture it has been used for cladding the walls and columns of palaces and churches. It was also ground and processed to make the pigment Ultramarine for tempera paint and, more rarely, oil paint. Its usage as a pigment in oil paint ended in the early 19th century as a chemically identical synthetic variety, often called ...

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Lapis lazuli, Lapis lazuli - Description, Lapis lazuli - Uses, Lapis lazuli - Enhancements, Lapis lazuli - Imitations, Lapis lazuli - History, Lapis lazuli - Metaphysical qualities, Lapis lazuli - Sources, Lapis lazuli - Poetry

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As inscribed in the 140th chapter of the Egyptian Book of the Dead, lapis lazuli, in the shape of an eye set in gold, was considered an amulet of great power. On the last day of the month, an offering was made before this symbolic eye, for it was believed that, on that day, the supreme being placed such an image on his head. Lapis lazuli is said to be associated with self-confidence, truthfulness, openness and inner tranquility. Lapis lazuli is the ancient stone of mental and psychological health, said to promote spiritual healing, mental calmness and strength of ...

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Lapis lazuli, Lapis lazuli - Description, Lapis lazuli - Uses, Lapis lazuli - Enhancements, Lapis lazuli - Imitations, Lapis lazuli - History, Lapis lazuli - Metaphysical qualities, Lapis lazuli - Sources, Lapis lazuli - Poetry

Read more here: » Lapis lazuli: Encyclopedia II - Lapis lazuli - Metaphysical qualities

After such a momentous year, subsequent years paled by comparison, but Roche was still a force to be reckoned with. In 1989 and 1990, he again took second places in the Paris-Nice stage race (making four second places in total), winning the Tour of Basque Country in 1989 and the Four Days of Dunkirk in 1990. In the Grand Tours, he was ninth in the 1989 Giro, and won a stage of the 1992 Tour de France en route to a final ninth place. A year later, he was again nint ...

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Stephen Roche, Stephen Roche - Early career, Stephen Roche - Knee Injury, Stephen Roche - Tour de France, Stephen Roche - Triple Crown, Stephen Roche - Late career, Stephen Roche - Performance Enhancing Drugs, Stephen Roche - Quotes

Read more here: » Stephen Roche: Encyclopedia II - Stephen Roche - Late career

MSZ-010 Double Zeta Gundam - MSZ-009 Prototype ZZ Gundam. Manufacturer: Anaheim Electronics Company Operator: Anti-Earth Union Group Unit type: prototype general purpose transformable mobile suit Dimensions: head height 19.02 meters Weight: empty 29.5 metric tons, max gross 60.3 metric tons Powerplant: Minovsky type ultracompact fusion reactor, output rated at 3140 kW Armament: 2 x hyper beam saber, high mega cannon, double beam rifle MS ...

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MSZ-010 Double Zeta Gundam, MSZ-010 Double Zeta Gundam - Specifications, MSZ-010 Double Zeta Gundam - MSZ-009 Prototype ZZ Gundam, MSZ-010 Double Zeta Gundam - MSZ-010 Double Zeta Gundam, MSZ-010 Double Zeta Gundam - MSZ-010S Enhanced ZZ Gundam, MSZ-010 Double Zeta Gundam - FA-010S Full Armor Enhanced ZZ Gundam, MSZ-010 Double Zeta Gundam - MSZ-013 Mass Production Type ZZ Gundam, MSZ-010 Double Zeta Gundam - Trivia

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In ancient times, lapis lazuli was known as sapphire, which is the name that is used today for the blue corundum variety sapphire. It appears to have been the sapphire of ancient writers because Pliny refers to sapphirus as a stone sprinkled with specks of gold. A similar reference can be found in the Hebrew Bible in Job 28:6. In ancient Egypt lapis lazuli was a favorite stone for amulets and ornaments such as scarabs; it was also used by the Assyrians and Babylonians for seals. Egyptian burial sites dating before 3000 B.C. contained thousands of jewelry items, many of lapis. Powdered lapis was used by E ...

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Lapis lazuli, Lapis lazuli - Description, Lapis lazuli - Uses, Lapis lazuli - Enhancements, Lapis lazuli - Imitations, Lapis lazuli - History, Lapis lazuli - Metaphysical qualities, Lapis lazuli - Sources, Lapis lazuli - Poetry

Read more here: » Lapis lazuli: Encyclopedia II - Lapis lazuli - History

Then, in 1987, Roche had a tremendous Spring season, winning the Tour of Valencia, a third victory in the Tour de Romandie, fourth place, plus a stage win in Paris-Nice, and finishing second in Liège-Bastogne-Liège - the closest he got to winning a 'Monument' Classic. He then took two stage wins en route to overall victory in the Giro d'Italia - the first Giro victor from outside mainland Europe. Following Hinault's retirement, and with Greg LeMond out injured following a hunting accident, the 1987 Tour de France was one of the most ...

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Stephen Roche, Stephen Roche - Early career, Stephen Roche - Knee Injury, Stephen Roche - Tour de France, Stephen Roche - Triple Crown, Stephen Roche - Late career, Stephen Roche - Performance Enhancing Drugs, Stephen Roche - Quotes

Read more here: » Stephen Roche: Encyclopedia II - Stephen Roche - Triple Crown

In the United Kingdom, animal names are used to distinguish several types of such crossings: Zebra crossing Pelican crossing Puffin crossing Toucan crossing Pegasus crossing (an Equestrian crossing) Belisha beacons are found at Zebra Crossings and Coloured Lights at all others. Belisha beacons are often used in the UK and in New Zealand to warn drivers of a crossing. The colored lights of th ...

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Pedestrian crossing, Pedestrian crossing - Pedestrian crossings in the United Kingdom, Pedestrian crossing - Crosswalks in North America, Pedestrian crossing - Enhancements for disabled users

Read more here: » Pedestrian crossing: Encyclopedia II - Pedestrian crossing - Pedestrian crossings in the United Kingdom

Amphetamine is a synthetic drug with strong stimulant effects. In the United States, it is most commonly used for treatment of attention deficit disorders and narcolepsy, but is also approved as a weight loss medication in certain cases of obesity. Within the armed forces only, it is also frequently prescribed as an anti-fatigue pill for pilots or other individuals in situations requiring vigilance and alertness. Amphetamine is also used i ...

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Amphetamine, Amphetamine - Pharmacology, Amphetamine - Medicinal use, Amphetamine - Performance enhancing use, Amphetamine - Effects of use, Amphetamine - Physiological effects, Amphetamine - Legal issues, Amphetamine - Books, Amphetamine - Notes

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The experimental medical use of amphetamines began in the 1920s. It was introduced in most of the world in the form of the pharmaceutical Benzedrine in the late 1920s. The drug was used by the militaries of several nations, especially the air forces, to fight fatigue and increase alertness among servicemen. After decades of reports of abuse, the FDA banned Benzedrine inhalers and limited amphetamines to prescriptio ...

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Amphetamine, Amphetamine - Pharmacology, Amphetamine - Medicinal use, Amphetamine - Performance enhancing use, Amphetamine - Effects of use, Amphetamine - Physiological effects, Amphetamine - Legal issues, Amphetamine - Books, Amphetamine - Notes

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100-199 Colours 200-299 Preservatives 300-399 Antioxidants & acidity regulators 400-499 Thickeners, stabilisers & emulsifiers 500-599 pH regulators & anti-caking agents 600-699 Flavour enhancers 900-999 Miscellaneous

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E number, E number - Classification by numeric range, E number - Full list, E number - E100–E199 colours, E number - E200–E299 preservatives, E number - E300–E399 antioxidants acidity regulators, E number - E400–E499 thickeners stabilizers emulsifiers, E number - E500–E599 acidity regulators anti-caking agents, E number - E600–E699 flavour enhancers, E number - E900–E999 miscellaneous, E number - E1000–E1999 additional chemicals, E number - Abbreviations used in this article, E number - Notes, E number - External link

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In the USA, crosswalks are usually marked with white stripes, though every municipality seems to have a slightly different method, style, or pattern for doing so (and the styles vary over time as intersections are built and replaced). There are two main methods for road markings in the United States. Most frequently, they are marked with two thick white lines running from one side of the road to the other. A shorter third line is usually also present, to be used as a stop point for vehicles and discourage drivers from pulling into the crosswalk. The more easily visible zebra stripes (like UK zebra cross ...

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Pedestrian crossing, Pedestrian crossing - Pedestrian crossings in the United Kingdom, Pedestrian crossing - Crosswalks in North America, Pedestrian crossing - Enhancements for disabled users

Read more here: » Pedestrian crossing: Encyclopedia II - Pedestrian crossing - Crosswalks in North America

Amphetamines release stores of norepinephrine and dopamine from nerve endings by converting the respective molecular transporters into open channels. Amphetamine also releases stores of serotonin from synaptic vesicles. Like methylphenidate (Ritalin) amphetamines also prevent the monoamine transporters for dopamine and norepinephrine from recycling them (called reuptake inhibition) which leads to increased amounts of dopamine and norepinephrine in synaptic clefts. These combined effects rapidly increases the concentrations of the respective neurotransmitters in the synaptic cleft, which promotes nerve impulse tran ...

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Amphetamine, Amphetamine - Pharmacology, Amphetamine - Medicinal use, Amphetamine - Performance enhancing use, Amphetamine - Effects of use, Amphetamine - Physiological effects, Amphetamine - Legal issues, Amphetamine - Books, Amphetamine - Notes

Read more here: » Amphetamine: Encyclopedia II - Amphetamine - Effects of use

Example 1: In the United Kingdom, amphetamines are regarded as Class B drugs. The maximum penalty for unauthorised possession is three months' imprisonment and a £2,500 fine. Example 2: In the United States, amphetamine and methamphetamine are Schedule II controlled drugs, classified as a CNS (Central Nervous System) Stimulant. A Schedule II drug is classified as one that: has a high potential for abuse, has a currently accepted medical use and is used under severe restrictions, and has a high possibility of severe ...

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Amphetamine, Amphetamine - Pharmacology, Amphetamine - Medicinal use, Amphetamine - Performance enhancing use, Amphetamine - Effects of use, Amphetamine - Physiological effects, Amphetamine - Legal issues, Amphetamine - Books, Amphetamine - Notes

Read more here: » Amphetamine: Encyclopedia II - Amphetamine - Legal issues

PPP provides hooks for automatically configuring the network interfaces at each end (setting an IP address, default gateway etc.) and for authentication: PAP and CHAP. While both PPP and DHCP offer support for automatic configuration of interfaces, DHCP is more widely used nowadays but lacks ability to authenticate users. PPP is described by IETF RFC 1661. Numerous documents on PPP have been published through the RFC process since July 1990, including various authentication, encryption and compression methods a ...

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Point-to-Point Protocol, Point-to-Point Protocol - Enhanced error detection, Point-to-Point Protocol - Looped link detection, Point-to-Point Protocol - Other PPP features, Point-to-Point Protocol - PPP frame, Point-to-Point Protocol - Multilink PPP, Point-to-Point Protocol - RFCs

Read more here: » Point-to-Point Protocol: Encyclopedia II - Point-to-Point Protocol - Other PPP features

Statistics on the number of persons discharged from the military in the years since the policy was first introduced (1993) show that more people are discharged now than were before. Also, more of these people are given honorable discharges than was the case before. * Breakdown of discharges by service branch not available Additionally, in February 2005, the Government Accountability Office released estimates on the cost of the policy to the U.S. go ...

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Don't ask don't tell, Don't ask don't tell - History, Don't ask don't tell - Statistics, Don't ask don't tell - Military Readiness Enhancement Act, Don't ask don't tell - Situation outside the United States, Don't ask don't tell - General, Don't ask don't tell - Academic criticism

Read more here: » Don't ask don't tell: Encyclopedia II - Don't ask don't tell - Statistics

The normal adult human brain typically weighs between 1 and 1.5 kg (three pounds) and has an average volume of 1,600 cm³ (98 in³). The male brain has approximately 4% more brain cells and 100 grams more brain tissue than the equivalent female brain. During infancy, adolescence and adulthood, females have a higher brain weight to body weight ratio than males.[1] The mature brain consumes some 20% of the energy used by the body, while the developing b ...

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Human brain, Human brain - Overview, Human brain - Anatomy, Human brain - Function, Human brain - Study of the brain, Human brain - Myths, Human brain - Brain enhancement, Human brain - Comparison of the brain and a computer

Read more here: » Human brain: Encyclopedia II - Human brain - Anatomy

The human brain is the seat of the human mind - the set of cognitive processes related to perception, interpretation, imagination and memories, of which a person might or might not be aware. Beyond cognitive functions, the brain regulates autonomic processes related to essential body functions such as respiration and heartbeat. Extended neocortical capacity allows humans some control over emotional behavior, but neural pathways between emotive centers of the brain stem and cerebral motor control areas are shorter than those connecting ...

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Human brain, Human brain - Overview, Human brain - Anatomy, Human brain - Function, Human brain - Study of the brain, Human brain - Myths, Human brain - Brain enhancement, Human brain - Comparison of the brain and a computer

Read more here: » Human brain: Encyclopedia II - Human brain - Function