Handicrafts

Handicraft, also known as craftwork or simply craft, is a type of work where useful and decorative devices are made completely by hand or using only simple tools. Usually the term is applied to traditional means of making goods. The individual artisanship of the items is a paramount criterion, such items often have cultural and/or religious significance. Items made by mass production or machines are not handicrafts.

Medieval India The Medieval period of Indian history in the context of handicrafts showed a marked shift from north India to the Deccan and southern parts of the country, though the handicraftsmen under the Delhi Sultanate period flourished in the field of pottery, weaving, wood carving, metal working, jewelry etc. The contribution of the Cholas and the Vijaynagar Empire in the field of bronze sculpture, silk weaving, jewelry, temple carving is beyond parallel. The fine example of stone carving from central India can be seen in the form of the Khajuraho Temples, built by the Chandelas. Rich and ornate wood and stone carving can be found in medieval temple of Jagannath at Puri in Orissa.

Coping saws are very useful for removing bulk. A carving can often be roughed in with a coping saw, and once the shape is cut out, knives, chisels, and gouges can be used to clean it up and do the final shaping. Coping saw blades can be sharpened with a triangle file, though they are cheap enough that they ore more frequently replaced when dull. The blade can be installed on the coping saw so that it cuts on either the pull stroke or the push stroke. Experiment to see which you like better. To make a cut, clamp the piece to a bench or hold it firmly with your free hand or knee. Align the blade with the pencil mark you have made which will guide the cut. Gently work the saw up and down to make the cut. You may have difficulty at first, and this does take a little practice to master. But once you have it down, it is not all that difficult. Follow the line until the cut is complete.

A sanding block is a block used to hold sandpaper. In its simplest form, it is a block of wood or cork with one smooth flat side. The user wraps the sandpaper around the block, and holds it in place. Fancier versions use clips, teeth or clamps to hold the paper in place. Commercial versions can be constructed of various materials. They are usually sized to hold a quarter or half sheet of sandpaper. Some versions use the sandpaper belts intended for a power belt sander. Sanding blocks are helpful because they prevent the "waves" created by plain sandpaper. A rasp is a woodworking tool used for shaping wood. It consists of a point or the tip, then a long steel bar or the belly, then the heel or bottom, then the tang. The tang is joined to a handle, usually made of plastic or wood. The bar has had sharp teeth cut into it. Rasps generally cut more coarsely than files. They are useful for rapidly removing wood from curved surfaces.

Blades

A blade is the flat part of a tool, weapon, or machine (such as a fan) that normally has a cutting edge and/or pointed end typically made of a flaking stone, such as flint, or metal, most recently steel. A blade is intentionally used to cut, stab, slice, throw, thrust, position and/or place (an example of this is razor wire), shoot (an example of this is the ballistic knife), scrape (an example of this is an ink eraser) or strike an animate or inanimate object.

The basic idea of a blade is very similar to a sharp point. The shape concentrates all the force onto a very small area, resulting in a high amount of pressure which allows it to penetrate matter. A serrated blade (a blade which has many small "teeth") takes this further as each individual tooth concentrates the force on a smaller area which helps cut through denser materials. A serrated knife can cut through objects solely with a sliding motion with little pushing force, this is useful for tools which require these attributes such as bread knives. Some bladed weapons (and tools) have curved blades. A curve can serve two purposes, the first is that it allows for slicing by continuing to "push" on the surface as it is drawn across it. The other effect is to allow the force to be concentrated in an even smaller area.

Case hardening is a process of increasing the carbon content at the surface of very low carbon steel. It is done by placing the object to be hardened in a sealed container along with carbon-containing material; in antiquity, this material was usually horn or hide. The container would then be heated until it was glowing red, and held at that temperature for a while, based on the size of the part being hardened, allowing carbon to penetrate the steel by a few thousandths of a centimeter. At that point, the object would be dumped out of the container into a water bath to quench it, resulting in a very hard surface, but completely unhardened core. There is very little evidence of this having ever been done to swords except, perhaps, the very earliest of iron blades. Due to the inherent weakness of a sword's cutting edge, coupled with the high-impact stresses of combat, such a thin hardened surface over a soft core would provide very little advantage in terms of edge-holding, other than mild wear resistance.

Blades dull with use and abuse. This is particularly true of acute blades and those made of soft materials. Dulling usually occurs due to contact between the blade and a harder substance such as a ceramic, stone or a tougher metal. To a first approximation, a harder material cannot be deformed by a softer material at their interface because the stress on both materials is the same at the interface and so the softer material will yield first. One exception to this is when the highest stress isn't at the contact point; this is why one can easily bend a steel paper clip even though an end of the same paper clip could scratch one's skin. Swords may have either a straight blade or a curved one. A straight sword was thought to primarily intended for hacking and stabbing, yet recent studies have shown this to be untrue, as many slicing techniques were used.

Banana

Banana is the common name for a type of fruit and also the herbaceous plants of the genus Musa which produce this commonly eaten fruit. They are native to the tropical region of Southeast Asia. Bananas are likely to have been first domesticated in Papua New Guinea. Today, they are cultivated throughout the tropics. The banana fruit grow in hanging clusters, with up to 20 fruit to a tier, and 3–20 tiers to a bunch. The total of the hanging clusters is known as a bunch, or commercially as a "banana stem", and can weigh from 30–50 kg. The fruit averages 125 g, of which approximately 75% is water and 25% dry matter content. Each individual fruit (known as a banana or 'finger') has a protective outer layer (a peel or skin) with a fleshy edible inner portion. Both skin and inner part can be eaten raw or cooked. Western cultures generally eat the inside raw and throw away the skin while some Asian cultures generally eat both the skin and inside cooked. Typically, the fruit has numerous strings which run between the skin and inner part. Bananas are a valuable source of vitamin B₆, vitamin C, and potassium.

The banana plant is a pseudostem that grows to 6 to 7.6 metres (20–25 feet) tall, growing from a corm. Leaves are spirally arranged and may grow 2.7 metres (9 ft) long and 60 cm (2 ft) wide. The banana plant is the largest of all herbaceous flowering plants. The large leaves grow whole, but are easily torn by the wind, resulting in the familiar frond look. Most production for local sale is of green cooking bananas and plantains, as ripe dessert bananas are easily damaged while being transported to market. Even when transported only within their country of origin, ripe bananas suffer a high rate of damage and loss.

Banana chips are a snack produced from dehydrated or fried banana or plantain slices, which have a dark brown color and an intense banana taste. Bananas have also been used in the making of jam. Unlike other fruits, it is difficult to extract juice from bananas because when compressed a banana simply turns to pulp. Seeded bananas, the forerunner of the common domesticated banana, are sold in markets in Indonesia. In India, juice is extracted from the corm and used as a home remedy for the treatment of jaundice, sometimes with the addition of honey.

Bananas are among the most widely consumed foods in the world. Most banana farmers receive a low unit price for their produce as supermarkets buy enormous quantities and receive a discount for that business. Competition amongst supermarkets has led to reduced margins in recent years which in turn has led to lower prices for growers. Chiquita, Del Monte, Dole, and Fyffes grow their own bananas in Ecuador, Colombia, Costa Rica, Guatemala, and Honduras. Banana plantations are capital intensive and demand high expertise, so the majority of independent growers are large and wealthy landowners of these countries. This has led to bananas being available as a "fair trade" or Rainforest Alliance certified item in some countries.

Coconut

The Coconut Palm (Cocos nucifera) is a member of the Family Arecaceae (palm family). It is the only species in the genus Cocos, and is a large palm, growing to 30 m tall, with pinnate leaves 4-6 m long, pinnae 60-90 cm long; old leaves break away cleanly leaving the trunk smooth. The term coconut refers to the seed of the coconut palm. An alternate spelling is cocoanut. The coconut palm is grown throughout the tropical world, for decoration as well as for its many culinary and non-culinary uses; virtually every part of the coconut palm has some human uses.

The coconut has spread across much of the tropics, probably aided in many cases by seafaring people. The fruit is light and buoyant and presumably spread significant distances by marine currents. Fruits collected from the sea as far north as Norway have been found to be viable (and subsequently germinated under the right conditions). In the Hawaiian Islands, the coconut is regarded as a Polynesian introduction, first brought to the islands by early Polynesian voyagers from their homelands in the South Pacific.

The coconut palm thrives on sandy soils and is highly tolerant of salinity. It prefers areas with abundant sunlight and regular rainfall (150 cm to 250 cm annually), which makes colonizing shorelines of the tropics relatively straightforward. Coconuts also need high humidity (70-80%+) for optimum growth, which is why they are rarely seen in areas with low humidity, like the Mediterranean, even where temperatures are high enough. Coconut trees are very hard to establish in dry climates and cannot grow there without frequent irrigation; in drought conditions, the new leaves do not open well, and older leaves may become desiccated; fruit also tends to be shed. Plant densities in Vanuatu for copra production are generally 9 meter, allowing a tree density of 100–160 trees per hectare.

The main coconut producing area in the Middle East is the Dhofar region of Oman. Particular the area around Salalah maintains large coconut plantations similar to those found across the Arabian Sea.The large coconut grooves of Dhofar are already mentioned by the medieval Moroccan traveller Ibn Battuta in his writings known as Al Rihla.This is possible due to an annual rainy season known locally as Khareef.Coconut are also increasingly grown for decorative purposes along the coasts of UAE and Saudi Arabia with the help of irrigation. The UAE has however imposed strict laws on mature coconut tree imports from other countries to reduce the spreading of pests that can spread to other native palm trees such as the date palm.

Watermelon

Watermelon refers to both fruit and plant of a vine-like (climber and trailer) herb originally from southern Africa and one of the most common types of melon. This flowering plant produces a special type of fruit known by botanists as a pepo, which has a thick rind (exocarp) and fleshy center (mesocarp and endocarp); pepos are derived from an inferior ovary and are characteristic of the Cucurbitaceae. The watermelon fruit, loosely considered a type of melon (although not in the genus Cucumis), has a smooth exterior rind (green and yellow) and a juicy, sweet, usually red, but sometimes orange, yellow, or pink interior flesh.

For commercial plantings, one beehive per acre (over 9,000 m² per hive) is the minimum recommendation by the US Department of Agriculture for pollination of conventional, seeded varieties. Because seedless hybrids have sterile pollen, pollinizer rows of varieties with viable pollen must also be planted. Since the supply of viable pollen is reduced and pollination is much more critical in producing the seedless variety, the recommended number of hives per acre, or pollinator density, increases to three hives per acre (1,300 m² per hive).

Although so-called "seedless" watermelons have far fewer seeds than the seeded varieties, they generally contain at least a few soft, pale seeds. They are the product of crossing a female tetraploid plant (itself the product of genetic manipulation, using colchicine) with diploid pollen. The resulting triploid plant is sterile, but will produce the seedless fruit if pollenized by a diploid plant. For this reason, commercially available seedless watermelon seeds actually contain two varieties of seeds; that of the triploid seedless plant itself (recognizable because the seed is larger), and the diploid plant which is needed to pollenize the triploid. Unless both plant types are grown in the same vicinity, no seedless fruit will result.

Fresh watermelon may be eaten in a variety of ways and is also often used to flavor summer drinks and smoothies. Watermelon contains about six percent sugar by weight, the rest being mostly water. As with many other fruits, it is a source of vitamin C. It is not a significant source of other vitamins and minerals unless one eats several kilograms per day. Watermelon seeds are rich in fat and protein, and are widely eaten as a snack, added to other dishes, or used as an oilseed. Specialized varieties are grown which have little watery flesh but concentrate their energy into seed production. In China watermelon seeds are one of the most common snack foods, competing with sunflower seeds, and sold roasted and seasoned. In West Africa, they are pressed for oil, and are popular in egusi soup and other dishes. There can be some confusion between seed-specialized watermelon varieties and the colocynth, a closely-related species with which they share many characteristics, uses, and similar or identical names.

Camphor

Camphor is a waxy, white or transparent solid with a strong, aromatic odor. It is a terpenoid with the chemical formula C₁₀H₁₆O. It is found in wood of the camphor laurel (Cinnamomum camphora), a large evergreen tree found in Asia (particularly in Borneo and Taiwan, hence its alternate name). It also occurs in some other related trees in the laurel family, notably Ocotea usambarensis. It can also be synthetically produced from oil of turpentine. It is used for its scent, as an ingredient in cooking (mainly in India), as an embalming fluid, in religious ceremonies and for medicinal purposes. A major source of camphor in Asia is camphor basil.

Methylation with methyl iodide and a complicated reduction procedure produced camphoric acid. William Perkin published another synthesis a short time later. Previously, some organic compounds (such as urea) had been synthesized in the laboratory as a proof of concept, but camphor was a scarce natural product with a worldwide demand. Komppa realized this and began industrial production of camphor in Tainionkoski, Finland, in 1907.

Modern uses include as a plasticizer for nitrocellulose, as a moth repellent, as an antimicrobial substance, in embalming, and in fireworks. Solid camphor releases fumes that form a rust-preventative coating and is therefore stored in tool chests to protect tools against rust. Camphor crystals are also used to prevent damage to insect collections by other small insects. It is also used in medicine. Camphor is readily absorbed through the skin and produces a feeling of cooling similar to that of menthol and acts as slight local anesthetic and antimicrobial substance. There are anti-itch gel and cooling gels with camphor as the active ingredient. Camphor is an active ingredient (along with menthol) in vapor-steam products, such as Vicks VapoRub, and it is effective as a cough suppressant. It may also be administered orally in small quantities (50 mg) for minor heart symptoms and fatigue.

Camphor is widely used in Hindu religious ceremonies. Hindus worship by lighting a holy flame by burning camphor which forms the most important part of many religious ceremonies. Camphor is used in the Mahashivratri celebrations of Shiva, the Hindu god of destruction and (re)creation. As a natural pitch substance, it burns cool without leaving an ash residue, which symbolizes consciousness. Of late, most temples in southern India have stopped lighting camphor in the main Sanctum Sanctorium due to heavy deposits of carbon; however, open areas do use camphor. It is also found in clarifying masks used for skin. Recently, carbon nanotubes were successfully synthesized using camphor in chemical vapor deposition process

Orange

Oranges originated in Southeast Asia. The fruit of Citrus sinensis is called sweet orange to distinguish it from Citrus aurantium, the bitter orange. In a number of languages, it is known as a "Chinese apple". The name is thought to ultimately derive from the Dravidian and Telugu word for the orange tree, with its final form developing after passing through numerous intermediate languages.

All citrus trees are of the single genus, Citrus, and remain largely interbreedable; that is, there is only one "superspecies" which includes grapefruits, lemons, limes and oranges. Nevertheless, names have been given to the various members of the genus, oranges often being referred to as Citrus sinensis and Citrus aurantium. Fruits of all members of the genus Citrus are considered berries because they have many seeds, are fleshy and soft, and derive from a single ovary. An orange seed is called a pip. The white thread-like material attached to the inside of the peel is called pith.

The Persian orange, grown widely in southern Europe after its introduction to Italy in the 11th century, was bitter. Sweet oranges brought to Europe in the 15th century from India by Portuguese traders, quickly displaced the bitter, and are now the most common variety of orange cultivated. The sweet orange will grow to different sizes and colours according to local conditions, most commonly with ten carpels, or segments, inside. The Valencia or Murcia orange is one of the sweet oranges used for juice extraction. It is a late-season fruit, and therefore a popular variety when the navel oranges are out of season. For this reason, the orange was chosen to be the official mascot of the 1982 FIFA World Cup, which was held in Spain. The mascot was called "Naranjito" ("little orange"), and wore the colours of the Spanish soccer team uniform.

Oranges grown for commercial production are generally grown in groves and are produced throughout the world. The top three orange-producing countries are Brazil, the United States, and Mexico. Oranges are sensitive to frost, and a common treatment to prevent frost damage when sub-freezing temperatures are expected, is to spray the trees with water, since as long as unfrozen water is turning to ice on the trees' branches, the ice that has formed stays just at the freezing point, giving protection even if air temperatures have dropped far lower.

Apple

The apple is the pomaceous fruit of the apple tree, species Malus domestica in the rose family Rosaceae. It is one of the most widely cultivated tree fruits. The tree is small and deciduous, reaching 3 to 12 metres (9.8 to 39 ft) tall, with a broad, often densely twiggy crown. The tree originated from Central Asia, where its wild ancestor is still found today. There are more than 7,500 known cultivars of apples resulting in range of desired characteristics. Cultivars vary in their yield and the ultimate size of the tree, even when grown on the same rootstock.

The center of diversity of the genus Malus is the eastern Turkey. The apple tree was perhaps the earliest tree to be cultivated, and its fruits have been improved through selection over thousands of years. Alexander the Great is credited with finding dwarfed apples in Asia Minor in 300 BCE; those he brought back to Macedonia might have been the progenitors of dwarfing rootstocks. Winter apples, picked in late autumn and stored just above freezing, have been an important food in Asia and Europe for millennia, as well as in Argentina and in the United States since the arrival of Europeans. Apples were brought to North America with colonists in the 1600s, and the first apple orchard on the North American continent was said to be near Boston in 1625. In the 1900s, irrigation projects in Washington state began and allowed the development of the multi-billion dollar fruit industry, of which the apple is the leading species.

Apples appear in many religious traditions, often as a mystical or forbidden fruit. One of the problems identifying apples in religion, mythology and folktales is that the word "apple" was used as a generic term for all (foreign) fruit, other than berries but including nuts, as late as the 17th century. For instance, in Greek mythology, the Greek hero Heracles, as a part of his Twelve Labours, was required to travel to the Garden of the Hesperides and pick the golden apples off the Tree of Life growing at its center.

Apples are self-incompatible; they must cross-pollinate to develop fruit. During the flowering each season, apple growers usually provide pollinators to carry the pollen. Honeybee hives are most commonly used. Orchard mason bees are also used as supplemental pollinators in commercial orchards. Bumble bee queens are sometimes present in orchards, but not usually in enough quantity to be significant pollinators.

Rose Water

Rose perfumes are made from rose oil, also called attar of roses, which is a mixture of volatile essential oils obtained by steam-distilling the crushed petals of roses, a process first developed in Persia and Bulgaria. Rose water is a by-product of this process. Rose water has a very distinctive flavour and is used heavily in South Asian, West Asian and Middle Eastern cuisine—especially in sweets. For example, rose water gives gulab jamuns and some types of lokum (Turkish delight) their distinctive flavours.

In Iran it is also added to tea, ice cream, cookies and other sweets in small quantities, and in the Arab world and India it is used to flavour milk and dairy-based dishes such as rice pudding. It is also a key ingredient in sweet lassi, a drink made from yogurt, sugar and various fruit juices, and is also used to make jallab. In Malaysia and Singapore, rose water is mixed with milk, sugar and pink food colouring to make a sweet drink called bandung. Rose water is frequently used as replacement for red wine and other alcohols in cooking by Muslim chefs.

In Western Europe, rose water (as well as orange flower water) is sometimes used to flavour both marzipan and a petite scallop-shaped French sponge cake, sometimes called a cookie, known as a madeleine. Rose water was also used to make Waverly Jumbles, a type of cookie much favoured by the American President James Monroe. American and European bakers enjoyed the floral flavouring of rose water in their baking until the 19th century when vanilla flavouring became popular. The French are known for their rose syrup, most commonly made from an extract of rose petals. In the United States, this French rose syrup is used to make rose scones.

A rose water ointment is occasionally used as an emollient, and rose water is sometimes used in cosmetics such as cold creams. Zamzam water, used to clean the Kaaba, a holy shrine of Islam located in Mecca, includes rose water as a component. Rose water is used in some Hindu rituals as well. Rose water was first produced by Muslim chemists in the medieval Islamic world through the distillation of roses, for use in the drinking and perfumery industries.

Kumkum

Kumkum is a powder used for social and religious markings in Hinduism. It is either made from turmeric or saffron. The turmeric is dried and powdered with a bit of slaked lime, which turns the rich yellow powder into a red color. The kumkum is an auspicious symbol. When a girl or a married woman visits a house, it is a sign of respect (in case of an elderly lady) or blessings (in case of a young girl) to offer kumkum to them when they leave. However, it is not offered to widows. When visiting a Hindu temple, married women from southern India usually dip their ring finger in yellow turmeric powder, and apply a dot on their neck. Men, women, girls, and boys apply a dot on their forehead of red turmuric powder, also when visiting a temple or during a pooja. In most of India, everyday, married women apply red kumkum in front of their parting on their forehead as a symbol of marriage. This is called vermilion, or in Hindi, sindoor.

Saffron for kumkum is made from the flower Crocus sativus, in the family Iridaceae. The plant has many names in Sanskrit: Ghusrun, Rakta, Kashmir, Balhik, Kesar, Kashmiraj, Kumkum, Agneeshekhar, Asrugvar, Shatha, Shonit, Pitaka, or Rudhir. The saffron contains a dye consisting of 8 to 13.4% of the volatile oils crocin and picrococin. Kumkum is also widely used for worshiping the Hindu goddesses, especially Shakti and Lakshmi, and a kumkum powder is thrown (along with other mixtures) into the air during Holi (the Festival of Colours), a popular Hindu spring festival.

It is a shrub. Leaves are seen towards the base of the stem and are compactly arranged, flowers - either 2 to 3 flowers are in a bunch or one solitary flower is found besides each leaf, flowers are violet in colour. On every flower, there are 3 yellow coloured stamens. Seeds - the ovary is trilobed and in each lobe many round seeds are found. The stalk of gynaecium is made up of three fibers and each fiber has a red coloured stigma. This is known as kesar. Each flower yields three fibres of kesar and twenty flowers yields 120 mg. kesar. The plant flowers in autumn.

It improves complexion and hence is used for application on hyper pigmented lesions of the skin. It is also used for apply in headache. Its paste is applied on wounds. For weak eye sight, a mixture of rosewater and kesar is put in the eyes. Its paste is also used in hepatitis. It is useful in nervous debility, migraine, rheumatoid arthritis, pain caused by vata, loss of appetite. liver disorders, heart diseases and blood disorders, Kesar is used in dysuria. It is also useful in impotency, dysmenorrhoea, amenorrhoea and painful labour, It is very useful in small pox. It has also been used as a rejuvenator since ancient, times. (According to Shri Priyavrat Sharma, this plant survives for many years. But my opinion is that it is a very small shrub living for about 1-2 years. I have seen it grown in Kashmir.

Water Tank

Water tanks are liquid storage containers, these tanks are usually storing water for human consumption. The need for water tank systems is as old as civilized man. A water tank provides for the storage of drinking water potable, irrigation agriculture, fire suppression, agricultural farming and livestock, chemical manufacturing, food preparation as well as many other possible solutions. Various materials are used for making a water tank: plastics (polyethylene, polypropylene), fiberglass, concrete, stone, steel (welded or bolted, carbon or stainless). Earthen ponds function as water storage and are often referred to as tanks.

Ground water tank is made of lined carbon steel, it may receive water from a water well or from surface water allowing a large volume of water to be placed in inventory and used during peak demand cycles. Elevated Water Tanks also known as water towers, by elevating the water tank the increased elevation creates a, system distribution, pressure at the tank outlet of 1 psi per 2.31 feet of elevation, thus a tank elevated to 70 feet creates about 30 psi of discharge pressure, 30 psi is sufficient for most domestic and industrial requirements. (background legs shown) Chemical contact tanks of FDA and NSF polyethylene construction, allows retention time for water and chemicals to be in contact and mix.

Vertical cylindrical dome top tanks may hold from fifty gallons to several million gallons. Horizontal cylindrical tanks are typically used for transport; this low-profile transport storage creates a low center of gravity helping to maintain equilibrium for the transport vehicle, trailer or truck. Hydro-pneumatic tanks are typically horizontal pressurized storage tanks. Pressurizing this reservoir of water creates a surge free delivery of stored water into the distribution system.

Space flight simulator use elaborate water tanks for the simulation of weightlessness. Water tanks fabricated to resemble space craft interiors are suspended in large swimming pool like environments, giving astronauts the feeling approximating zero gravity. The Airline industry uses elaborate water tanks to simulate emergency water landings and the performance of aircraft upon entry to the water. Architecture Dampening of highrise building movement by using a highly placed volume water tank, the volume of water creates an inertia movement opposite to the building movement, slowing the building's movement, sway.

Junction Box

An electrical junction box is a container for electrical junctions, usually intended to conceal them from sight and to some extent to eliminate tampering. It can be a small metal or plastic container, such as those intended to form part of wiring, especially in buildings; in this type of application, it may form part of an electrical conduit wiring system, or may be buried in the plaster of a wall, concealed behind an access panel or cast into concrete with only the lid showing. It may or may not include terminals etc. for joining wires. A similar container used for joining wires to electrical switches or sockets is called a pattress.

Junction boxes form an integral part of a circuit protection system. In the event circuit integrity has to be provided, as may be necessary for emergency lighting or emergency power lines, or the wiring between a nuclear reactor and a control room. In such an event, the fireproofing afforded to the incoming or outgoing cables must also be extended to cover the junction box to prevent short circuits inside the box during an accidental fire. Electrical wiring in general refers to insulated conductors used to carry electricity, and associated devices. This article describes general aspects of electrical wiring as used to provide power in buildings and structures, commonly referred to as building wiring. This article is intended to describe common features of electrical wiring that should apply worldwide.

A cable is two or more wires or ropes running side by side and bonded, twisted or braided together to form a single assembly. In mechanics, cables are used for lifting and hauling; in electricity they are used to carry electrical currents. An optical cable contains one or more optical fibers in a protective jacket that supports the fibers. Mechanical cable is more specifically called wire rope. Cables can be securely fastened and organized, such as by using cable trees with the aid of cable ties or cable lacing. Continuous-flex or flexible cables used in moving applications within cable carriers can be secured using strain relief devices or cable ties. Copper corrodes easily and so should be layered with Lacquer.

A short circuit in an electrical circuit is one that allows a current to travel along a different path from the one originally intended. The electrical opposite of a short circuit is an "open circuit", which is an infinite resistance between two nodes. It is common to misuse "short circuit" to describe any electrical malfunction, regardless of the actual problem. In circuit analysis, the term short circuit is used by analogy to designate a zero-impedance connection between two nodes. This forces the two nodes to be at the same voltage. In an ideal short circuit, this means there is no resistance and no voltage drop across the short. In simple circuit analysis, wires are considered to be shorts. In real circuits, the result is a connection of nearly zero impedance, and almost no resistance. In such a case, the current drawn is limited by the rest of the circuit.

Beedi

A beedi is a thin, often flavored, Indian cigarette made of tobacco wrapped in a tendu (or temburini; Diospyros melonoxylon) leaf, and secured with colored thread at one end. Tobacco content in beedies is 10-20% and, unlike regular cigarettes, beedies do not contain added chemicals but deliver more nicotine, carbon monoxide, and tar than conventional cigarettes. Like all tobacco products, use can cause various cancers.

Beedies are available in many flavors (such as vanilla, strawberry, chocolate, and mango). In the USA, their availability in Indian food markets is usually under the authorities' radar, due to the markets' ethnic clientele and ostensible focus on food, drink, and provisions (and omission of alcohol products). A 1999 survey by San Francisco's Booker T Washington Community Service Center reported that 58% of high school students in San Francisco had tried Beedies, and 31% smoked them at least once a month. Seventy percent of packs purchased contained no warning labels, and about 40% did not contain tax-paid stamps, contributing to their low cost. Many students who tried beedi believe it to be less harmful than a regular cigarette due to the ease of inhalation and absence of warning labels.

Beedi-rolling is a cottage industry in India and is typically done by women in their homes. The process of rolling a beedi is similar to that of a handmade cigarette. Beedis vary accordingly by their size. Beedi tobacco consists of three different tobaccos; each has its own characteristic. The tobacco is brought from different states and each has its own blend. For example, for a strong tobacco flavor, tobacco from the state of Gujarat is preferred.

For a more mellow flavor tobacco from Nipani in Karnataka state is suitable, and to help the beedies retain the fire longer Choor from Mysooru is used. Once the beedies are rolled they are kept in a specially designed oven to ensure good flavor and to remove any moisture. Due to the relatively low cost of beedies compared with regular cigarettes, they have long been popular among the poor in Bangladesh, Pakistan, Sri Lanka, Cambodia and India. In India, 850 billion are smoked every year.

Sim Card

A Subscriber Identity Module (SIM) on a removable SIM Card securely stores the service-subscriber key (IMSI) used to identify a subscriber on mobile telephony devices (such as computers and mobile phones). The SIM card allows users to change phones by simply removing the SIM card from one mobile phone and inserting it into another mobile phone or broadband telephony device. SIM cards are available in two standard sizes. The first is the size of a credit card (85.60 mm × 53.98 mm x 0.76 mm). The newer, more popular miniature-version has a width of 25 mm, a height of 15 mm, and a thickness of 0.76 mm. However, most SIM cards are supplied as a full-sized card with the smaller card held in place by a few plastic links and can be easily broken off to be used in a phone that uses the smaller SIM.

The first SIM Card was made in 1991, with Munich smart card maker Giesecke & Devrient selling the first 300 SIM cards to Finnish wireless network operator Elisa Oyj. The use of SIM cards is mandatory in GSM devices. The equivalent of a SIM in UMTS is called the Universal Integrated Circuit Card (UICC), which runs a USIM application, whereas the Removable User Identity Module (R-UIM) is more popular in CDMA-based devices. The UICC card is still colloquially referred to as a SIM-card. Many CDMA-based standards do not include any such card, and the service is bound to a unique identifier contained in the handset itself.

SIM operating systems come in two main types: Native and Java Card. Native SIMs are based on proprietary, vendor specific software whereas the Java Card SIMs are based on standards, particularly Java Card which is a subset of the Java programming language specifically targeted at embedded devices. Java Card allows the SIM to contain programs that are hardware independent and interoperable. Each SIM is Internationally identified by its ICC-ID (Integrated Circuit Card ID). ICCIDs are stored in the SIM cards and are also engraved or printed on the SIM card body during a process called personalization. The ICCID is defined by the ITU-T recommendation E.118. The number is up to 18 or 19 digits long and in addition is often associated with a single check digit calculated using the Luhn algorithm.

A Universal Subscriber Identity Module is an application for UMTS mobile telephony running on a UICC smart card which is inserted in a 3G mobile phone. There is a common misconception to call the UICC card itself a USIM, but the USIM is merely a logical entity on the physical card. It stores user subscriber information, authentication information and provides storage space for text messages and phone book contacts. The phone book on a UICC has been greatly enhanced.

Pawn Brokers

A pawnbroker is an individual or business that offers monetary loans in exchange for an item of value that is given to the pawn broker. The word pawn is derived from the Latin pignus, for pledge, and the items having been pawned to the broker are themselves called pledges or pawns, or simply the collateral. If an item is pawned for a loan, within a certain contractual period of time the pawner may purchase it back for the amount of the loan plus some agreed-upon amount for interest. The amount of time, and rate of interest, is governed by law or by the pawnbroker's policies. If the loan is not paid (or extended, if applicable) within the time period, the pawned item will be offered for sale by Pawnbroker/Secondhand Dealer.

The pawnbroker assumes the risk that an item purchased was actually stolen property. However, laws exist in many jurisdictions that protect both the community at large and the brokers from unknowingly engaging in criminal activity (buying and selling stolen goods). These laws often require the pawnbroker to establish positive identification of the seller through photo identification (such as a driver's license or government-issued identity document), as well as a holding period placed on an item purchased by a pawnbroker (to allow for local law enforcement authorities to track down stolen items). In some cities, pawnshops must give a list of all newly-pawned items and their serial number to the police, to allow the police to determine if any of the items have been reported as stolen. Some pawnshops set up their own screening criteria to avoid buying stolen property. In some areas where there is a great deal of bike theft, for example, pawnshop owners may decide not to accept used bikes, because the likelihood of them being stolen is too high.

If an item is pawned for a loan, within a certain contractual period of time the pawner may purchase it back for the amount of the loan plus some agreed-upon amount for interest. The amount of time, and rate of interest, is governed by law or by the pawnbroker's policies. If the loan is not paid (or extended, if applicable) within the time period, the pawned item will be offered for sale by pawnbroker/secondhand dealer. Unlike other lenders, though, the pawnbroker does not report the defaulted loan on the customer's credit report, since the pawnbroker has physical possession of the item and may recoup the loan value through outright sale of the item. The pawnbroker/secondhand dealer also sells items that have been sold outright by customers to the dealer.

The pawnshop owner takes into account their knowledge of supply and demand for the item in question to determine if they think that they will end up selling the TV for $100 to a wholesaler or $300 to a pawnshop customer. If the pawnshop owner believes that there are "too many used TVs around these days in town", they may fear that they will only get $100 for the TV if they have to unload it to a wholesaler. With that figure in mind as the expected revenue, the pawnshop owner has to factor in the overhead costs of the store (rent, heat, electricity, phone connection, yellow pages ad, website costs, staff costs, insurance, alarm system, etc), and a profit for the business. As such, the customer who comes in with this TV that they paid $1000 for when it was new may be offered as little as $50 by the pawnshop owner, who is taking into account all of the risk and cost factors.

Jasmine

Jasmine is from the Persian yasmin, "gift from God with about 200 species, native to tropical and warm temperate regions of the Old World. The majority of species grow as climbers on other plants or on structures such as chicken wire, gates or fences. The leaves can be either evergreen (green all year round) or deciduous (falling leaves in autumn). Jasmine is widely cultivated for its flowers, enjoyed in the garden, as house plants, and as cut flowers. The flowers are worn by women in their hair in southern and southeast Asia. Many species also yield an absolute, which is used in the production of perfumes and incense.

Flowers and tea are "mated" in machines that control temperature and humidity. It takes four hours or so for the tea to absorb the fragrance and flavour of the Jasmine blossoms, and for the highest grades, this process may be repeated as many as seven times. Because the tea has absorbed moisture from the flowers, it must be refired to prevent spoilage. The spent flowers may or may not be removed from the final product, as the flowers are completely dry and contain no aroma. Giant fans are used to blow away and remove the petals from the denser tea leaves. If present, they simply add visual appeal and are no indication of the quality of the tea. The French are known for their jasmine syrup, most commonly made from an extract of jasmine flowers. In the United States, this French jasmine syrup is used to make jasmine scones.

Jasmine essential oil is now commonly in use. Its flowers are either extracted by the labour-intensive method of enfleurage or through chemical extraction. The reason it is so expensive is because of the enormous amount of flowers needed to produce a small amount of oil. The flowers have to be gathered at night because the odour of jasmine is more powerful after dark. The flowers are laid out on cotton cloths soaked in olive oil for several days and then extracted leaving the true Jasmine essence. Some of the countries producing Jasmine essential oil are India, Egypt, China and Morocco. Its chemical constituents include methyl anthranilate, indol, benzyl alcohol and linalol.

The Philippines, where it is known as "Sampaguita", and is usually strung on garlands which are then used to adorn religious images. Indonesia, where the variety Jasminum sambac is the "puspa bangsa" (National Flower), and goes by the name "Melati", In the country, especially the island of Java, it is the most important flower in wedding ceremonies for ethnic Indonesians. Pakistan, where Jasminum officinale is known as the "Chambeli" or "Yasmine" is the national flower.

Steel

Though steel had been produced by various inefficient methods long before the Renaissance, its use became more common after more efficient production methods were devised in the 17th century. With the invention of the Bessemer process in the mid-19th century, steel became a relatively inexpensive mass-produced material. Further refinements in the process, such as basic oxygen steelmaking, further lowered the cost of production while increasing the quality of the metal. Today, steel is one of the most common materials in the world and is a major component in buildings, infrastructure, tools, ships, automobiles, machines, and appliances. Modern steel is generally identified by various grades of steel defined by various standards organizations.

Iron, like most metals, is not usually found in the Earth's crust in an elemental state. Iron can be found in the crust only in combination with oxygen or sulfur. Since the oxidation rate itself increases rapidly beyond 800 °C, it is important that smelting take place in a low-oxygen environment. Unlike copper and tin, liquid iron dissolves carbon quite readily, so that smelting results in an alloy containing too much carbon to be called steel.

The heat treatment process for most steels involves heating the alloy until austenite forms, then quenching the hot metal in water or oil, cooling it so rapidly that the transformation to ferrite or pearlite does not have time to take place. The transformation into martensite, by contrast, occurs almost immediately, due to a lower activation energy. Martensite has a lower density than austenite, so that transformation between them results in a change of volume. In this case, expansion occurs. Internal stresses from this expansion generally take the form of compression on the crystals of martensite and tension on the remaining ferrite, with a fair amount of shear on both constituents. If quenching is done improperly, these internal stresses can cause a part to shatter as it cools; at the very least, they cause internal work hardening and other microscopic imperfections. It is common for quench cracks to form when water quenched, although they may not always be visible.

Blister steel, produced by the cementation process, was first made in Italy in the early 16th century and soon after introduced to England. It was produced by Sir Basil Brooke at Coalbrookdale during the 1610s. The raw material for this were bars of wrought iron. During the 17th century it was realised that the best steel came from oregrounds iron from a region of Sweden, north of Stockholm. This was still the usual raw material in the 19th century, almost as long as the process was used. Crucible steel is steel that has been melted in a crucible rather than being forged, with the result that it is more homogeneous. Most previous furnaces could not reach high enough temperatures to melt the steel.

Hair Drier

A hairdryer is an electromechanical device designed to blow cool or hot air over wet or damp hair, in order to accelerate the evaporation of water particles and dry the hair. Blowdryers allow to better control the shape and style of hair, by accelerating and controlling the formation of temporary hydrogen bonds inside each strand. These hydrogen bonds are very powerful (allowing for stronger hair shaping than even the sulfur bonds formed by permanent waving products), but are temporary and extremely vulnerable to humidity. They disappear with a single washing of the hair.

Hairstyles using blowdryers usually have volume and discipline, which can be further improved by the use of styling products and hairbrushes during drying to add tension, hold and lift. Most models use coils of wire that have a high electric resistivity and heats rapidly with an electric current. A fan usually blows ambient air past the hot coils resulting in heated air effective for drying. The heating element in most hairdryers is a bare, coiled nichrome wire that is wrapped around insulating mica heating boards.

Nichrome wire is used in heating elements, because of two important properties: it is a poor conductor of electricity and it does not oxidize when heated. Many of these hair dryers have "cool shot" buttons which turn off the heater and just blow room temperature air while the button is pressed. A survey of stores in 2007 showed that many hair dryers have ceramic heating elements (like ceramic heaters) - because of their "instant heat" capability.

Many also feature "ionic" operation, to reduce the amount of static electricity build-up in the hair. Manufacturers also claim this makes the hair "smoother". The hair dryer should be used with strategic movements of the hand and wrist in both horizontal and vertical motions. Caution and care should be used to ensure safety of the extremity. The constant motions used must be performed with caution. Remember to follow the "Handy rule" Which states, "Proper posture of the hand-arm system while using hand tools is very important. As a rule the wrist should not be bent, but must be kept straight to avoid overexertion of such tissues as tendons and tendon sheaths and compression of nerves and blood vessels."

Needle

A sewing needle is a long slender tool with a pointed tip. The first needles were made of bone or wood; modern ones are manufactured from high carbon steel wire, nickel- or gold plated for corrosion resistance. The highest quality embroidery needles are made of platinum. Traditionally, needles have been kept in needle books or needle cases which have become an object of adornment. A needle for hand sewing has a hole, called the eye, at the non-pointed end to carry thread or cord through the fabric after the pointed end pierces it. Hand sewing needles have different names depending on their purpose.

Sharps are needles used for general sewing. They have a sharp point, a round eye and are of medium length. The difference between sharps and other sewing needles can mainly be seen in their length. Embroidery needles, also known as Crewel needles, are identical to sharps but have a longer eye to enable easier threading of multiple embroidery threads and thicker yarns. Betweens or Quilting needles are shorter, with a small rounded eye and are usually used for making fine stitches on heavy fabrics such as in tailoring, quilt making and other detailed handwork. Milliners' needles are longer than sharps, are useful for basting and pleating, and are used in millinery work.

Knitting needles come in various types. Perhaps the most common is a pair of long, straight, rigid needles that are capped at one end. A circular needle is another type, in which two tapered rigid ends are connected by a long, flexible cord; the tapered ends are used for creating new stitches, whereas the flexible cord holds the active stitches. A third type is a shorter, straight, rigid needle that is tapered at both ends; such double-pointed needles are usually used in sets of four or five, and most often for circular knitting in which the diameter is very small, e.g., sweater sleeves or socks. A fourth type of knitting needle is the very short, double-pointed cable needle, which is used to hold stitches while the order of stitches being knit is permuted in cable knitting.

An upholstery needle is a needle used for upholstery. There are a variety of sizes, but they are usually thick and curved. The curved needle allows for repairs on finished items where only one side of the fabric is accessible. Another type of needle used by upholsterers is the button needle, which is a very long needle used to install buttons with heavy twine through pillows, cushions and furniture backs. An upholstery needle is also used by cosmetologists for the installation of hair weaves.

Hotel

A hotel is an establishment that provides paid lodging on a short-term basis. The provision of basic accommodation, in times past, consisting only of a room with a bed, a cupboard, a small table and a washstand has largely been replaced by rooms with modern facilities, including en-suite bathrooms and air conditioning or climate control. Additional common features found in hotel rooms are a telephone, an alarm clock, a television, and Internet connectivity; snack foods and drinks may be supplied in a mini-bar, and facilities for making hot drinks. Larger hotels may provide a number of additional guest facilities such as a restaurant, a swimming pool or childcare, and have conference and social function services.

Hotels are independently assessed in traditional systems and these rely heavily on the facilities provided. Some consider this disadvantageous to smaller hotels whose quality of accommodation could fall into one class but the lack of an item such as an elevator would prevent it from reaching a higher categorization. In some countries, there is an official body with standard criteria for classifying hotels, but in many others there is none. There have been attempts at unifying the classification system so that it becomes an internationally recognized and reliable standard but large differences exist in the quality of the accommodation and the food within one category of hotel, sometimes even in the same country.

Some hotels have gained their renown through tradition, by hosting significant events or persons, such as Schloss Cecilienhof in Potsdam, Germany, which derives its fame from the Potsdam Conference of the World War II allies Winston Churchill, Harry Truman and Joseph Stalin in 1945. The Taj Mahal Palace & Tower in Mumbai is one of India's most famous and historic hotels because of its association with the Indian independence movement. Some establishments have given name to a particular meal or beverage, as is the case with the Waldorf Astoria in New York City, United States where the Waldorf Salad was first created or the Hotel Sacher in Vienna, Austria, home of the Sachertorte. Others have achieved fame by association with dishes or cocktails created on their premises, such as the Hotel de Paris where the crêpe Suzette was invented or the Raffles Hotel in Singapore, where the Singapore Sling cocktail was devised.

Some hotels are built with living trees as structural elements, for example the Costa Rica Tree House in the Gandoca-Manzanillo Wildlife Refuge, Costa Rica; the Treetops Hotel in Aberdare National Park, Kenya; the Ariau Towers near Manaus, Brazil, on the Rio Negro in the Amazon; and Bayram's Tree Houses in Olympos, Turkey. Desert Cave Hotel in Coober Pedy, South Australia and the Cuevas Pedro Antonio de Alarcón in Guadix, Spain, as well as several hotels in Cappadocia, Turkey, are notable for being built into natural cave formations, some with rooms underground.