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90-706: Horsehair can be very fine and flexible; mane hair is generally softer and shorter than tail hair. The texture of horsehair can be influenced by the breed and management of the horse, including natural conditions such as diet or climate. Processing may also affect quality and feel. Horsehair is a protein fiber that absorbs water slowly, but can be dyed or colored effectively using traditional dyes suitable for protein fibers. It can be felted , but not easily. Horsehair fabrics are woven with wefts of tail hair from live horses and cotton or silk warps . Horsehair fabrics are sought for their lustre, durability and care properties and mainly used for upholstery and interiors. Horsehair

180-438: A broad range of possibilities Petroleum Petroleum is a naturally occurring yellowish-black liquid mixture. It consists mainly of hydrocarbons , and is found in geological formations . The term petroleum refers both to naturally occurring unprocessed crude oil, as well as to petroleum products that consist of refined crude oil. Conventional reserves of petroleum are primarily recovered by drilling , which

270-513: A broad range of sheep and other animal fibers have exploited knowledge of these different breeds to produce special effects in their felt. Fleece locks are classified by the Bradford or Micron count, both which designate the fineness to coarseness of the material. Fine wools range from 64 to 80 (Bradford); medium 40–60 (Bradford); and coarse 36–60 (Bradford). Merino, the finest and most delicate sheep fleece, will be employed for clothing that goes next to

360-442: A felt board, and in the process of telling the story, the storyteller also acts it out on the board with the animals or people. Puppets can also be made with felt. The best known example of felt puppets are Jim Henson 's Muppets . Felt pressed dolls, such as Lenci dolls , were very popular in the nineteenth century and just after World War I . As part of the overall renewal of interest in textile and fiber arts , beginning in

450-520: A fluid resembling petroleum, which when treated in the same way as the seep oil gave similar products. Young found that by slow distillation he could obtain several useful liquids from it, one of which he named "paraffine oil" because at low temperatures it congealed into a substance resembling paraffin wax. The production of these oils and solid paraffin wax from coal formed the subject of his patent dated October 17, 1850. In 1850, Young & Meldrum and Edward William Binney entered into partnership under

540-408: A mosaic. The felting process is then resumed and the edges of the fabric attach to each other as the felting process is completed. Shyrdak carpets (Turkmenistan) use a form of this method wherein two pieces of contrasting color are cut out with the same pattern, the cut-outs are then switched, fitting one into the other, which makes a sharply defined and colorful patterned piece. In order to strengthen

630-512: A much shallower level. The Athabasca oil sands are one example of this. An alternative mechanism to the one described above was proposed by Russian scientists in the mid-1850s, the hypothesis of abiogenic petroleum origin (petroleum formed by inorganic means), but this is contradicted by geological and geochemical evidence. Abiogenic sources of oil have been found, but never in commercially profitable amounts. "The controversy isn't over whether abiogenic oil reserves exist," said Larry Nation of

720-476: A process known as catagenesis . Formation of petroleum occurs from hydrocarbon pyrolysis in a variety of mainly endothermic reactions at high temperatures or pressures, or both. These phases are described in detail below. In the absence of plentiful oxygen, aerobic bacteria were prevented from decaying the organic matter after it was buried under a layer of sediment or water. However, anaerobic bacteria were able to reduce sulfates and nitrates among

810-465: A protective measure to avoid damage from rubbing to the edge of the painting. This is commonly found as a preventive measure on paintings which have already been restored or professionally framed. It is widely used to protect paintings executed on various surfaces including canvas, wood panel and copper plate. A felt-covered board can be used in storytelling to small children. Small felt cutouts or figures of animals, people, or other objects will adhere to

900-643: A significant amount of petroleum while drilling for lignite in Wietze , Germany. Wietze later provided about 80% of German consumption in the Wilhelminian Era. The production stopped in 1963, but Wietze has hosted a Petroleum Museum since 1970. Oil sands have been mined since the 18th century. In Wietze in lower Saxony, natural asphalt/bitumen has been explored since the 18th century. Both in Pechelbronn as in Wietze,

990-574: A source of internal and inter-state conflict, leading to both state-led wars and other resource conflicts . Production of petroleum is estimated to reach peak oil before 2035 as global economies lower dependencies on petroleum as part of climate change mitigation and a transition towards renewable energy and electrification . The word petroleum comes from Medieval Latin petroleum (literally 'rock oil'), which comes from Latin petra 'rock' (from Greek pétra πέτρα ) and oleum 'oil' (from Greek élaion ἔλαιον ). The origin of

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1080-471: A touch of warmth and texture to a space. During the 18th and 19th centuries gentlemen's headwear made from beaver felt were popular. In the early part of the 20th century, cloth felt hats, such as fedoras , trilbies and homburgs , were worn by many men in the western world. Felt is often used in footwear as boot liners, with the Russian valenki being an example. Many musical instruments use felt. It

1170-411: A variety of liquid, gaseous, and solid components. Lighter hydrocarbons are the gases methane , ethane , propane and butane . Otherwise, the bulk of the liquid and solids are largely heavier organic compounds, often hydrocarbons (C and H only). The proportion of light hydrocarbons in the petroleum mixture varies among oil fields . An oil well produces predominantly crude oil. Because the pressure

1260-520: A visit to Fort Duquesne in 1750. Early British explorers to Myanmar documented a flourishing oil extraction industry based in Yenangyaung that, in 1795, had hundreds of hand-dug wells under production. Merkwiller-Pechelbronn is said to be the first European site where petroleum has been explored and used. The still active Erdpechquelle, a spring where petroleum appears mixed with water has been used since 1498, notably for medical purposes. There

1350-450: A wide range of applications. The most widely applied use for horsehair is in the fishing line. The hair is spun together and made into very long lines. Another historic use was for gloves commonly used for fishing in the medieval age leading up to the 17th century in cold climates. In the early 1900s, surgeons would use horsehair and silver wires to suture the incisions needed for a facelift . Horsehair has been used in more modern times as

1440-462: A wide variety of purposes. It is "fire-retardant and self-extinguishing; it dampens vibration and absorbs sound; and it can hold large amounts of fluid without feeling wet..." Felt from wool is one of the oldest known textiles. Many cultures have legends about the origins of felt-making. Sumerian legend claims that the secret of feltmaking was discovered by Urnamman of Lagash . The story of Saint Clement and Saint Christopher relates that

1530-547: A year before Drake's Pennsylvania operation and could be argued to be the first commercial oil well in North America. The discovery at Oil Springs touched off an oil boom which brought hundreds of speculators and workers to the area. Advances in drilling continued into 1862 when local driller Shaw reached a depth of 62 metres using the spring-pole drilling method. On January 16, 1862, after an explosion of natural gas , Canada's first oil gusher came into production, shooting into

1620-415: Is Ikuyo Fujita (藤田育代 Fujita Ikuyo), a Japanese artist who works primarily in needle felt painting and mogol (pipe cleaner) art. Recently, needle-felting machines have become popular for art or craft felters . Similar to a sewing machine, these tools have several needles that punch fibers together. These machines can be used to create felted products more efficiently. The embellishment machine allows

1710-433: Is an alternative theory that the fibers wind around each other during felting. Plant fibers and synthetic fibers will not wet felt. In order to make multi-colored designs, felters conduct a two-step process in which they create pre-felts of specialized colors—these semi-completed sheets of colored felt can then be cut with a sharp implement (knife or scissors) and the distinctive colors placed next to each other as in making

1800-487: Is called diagenesis , a word that means a transformation of materials by dissolution and recombination of their constituents. Kerogen formation continued to a depth of about 1 km from the Earth's surface where temperatures may reach around 50 °C . Kerogen formation represents a halfway point between organic matter and fossil fuels : kerogen can be exposed to oxygen, oxidize and thus be lost, or it could be buried deeper inside

1890-427: Is common to conduct the rolling/friction process with the aid of a horse, donkey, or camel, which will pull the rolled felt until the process is complete. Alternately, a group of people in a line might roll the felt along, kicking it regularly with their feet. Further fulling can include throwing or slamming and working the edges with careful rolling. In Turkey, some baths had areas dedicated to feltmaking, making use of

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1980-717: Is considered a sticky, black, tar-like form of crude oil which is so thick and heavy that it must be heated or diluted before it will flow. Venezuela also has large amounts of oil in the Orinoco oil sands , although the hydrocarbons trapped in them are more fluid than in Canada and are usually called extra heavy oil . These oil sands resources are called unconventional oil to distinguish them from oil which can be extracted using traditional oil well methods. Between them, Canada and Venezuela contain an estimated 3.6 trillion barrels (570 × 10 ^  m ) of bitumen and extra-heavy oil, about twice

2070-413: Is desirable for paint brushes because of its smooth lay and ability to hold a large amount of paint acting as a reservoir and allowing the painter to stop less frequently. Horsehair is used for violin and other stringed instrument bows. Another use in the art community comes from pottery and basket weaving where the hair is used for distinct accents and styling. The use of horsehair for fishing has

2160-420: Is directed by a leader who oversees the process as a ritual that includes prayers—words and actions to bring good luck to the process. Successfully completing the creation of felt (certainly large felt pieces) is reason for celebration, feasting, and the sharing of traditional stories. In Turkey , craft guilds called "ahi" came into being, and these groups were responsible for registering members and protecting

2250-738: Is done after a study of the relevant structural geology , analysis of the sedimentary basin , and characterization of the petroleum reservoir . There are also unconventional reserves such as oil sands and oil shale which are recovered by other means such as fracking . Once extracted, oil is refined and separated, most easily by distillation , into innumerable products for direct use or use in manufacturing. Products include fuels such as gasoline (petrol), diesel , kerosene and jet fuel ; asphalt and lubricants ; chemical reagents used to make plastics ; solvents , textiles , refrigerants , paint , synthetic rubber , fertilizers , pesticides , pharmaceuticals , and thousands of others. Petroleum

2340-473: Is lower at the surface than underground, some of the gas will come out of solution and be recovered (or burned) as associated gas or solution gas . A gas well produces predominantly natural gas . However, because the underground temperature is higher than at the surface, the gas may contain heavier hydrocarbons such as pentane, hexane , and heptane (" natural-gas condensate ", often shortened to condensate. ) Condensate resembles gasoline in appearance and

2430-737: Is now called the Drake Well in Cherrytree Township, Pennsylvania .There also was a company associated with it, and it sparked a major oil drilling boom. The first commercial oil well in Canada became operational in 1858 at Oil Springs, Ontario (then Canada West ). Businessman James Miller Williams dug several wells between 1855 and 1858 before discovering a rich reserve of oil four metres below ground. Williams extracted 1.5 million litres of crude oil by 1860, refining much of it into kerosene lamp oil. Williams's well became commercially viable

2520-436: Is often used as a damper . On drum cymbal stands, it protects the cymbal from cracking and ensures a clean sound. It is used to wrap bass drum strikers and timpani mallets . Felt is used extensively in pianos; for example, piano hammers are made of wool felt around a wooden core. The density and springiness of the felt is a major part of what creates a piano's tone. As the felt becomes grooved and "packed" with use and age,

2610-451: Is similar in composition to some volatile light crude oils . The hydrocarbons in crude oil are mostly alkanes , cycloalkanes and various aromatic hydrocarbons , while the other organic compounds contain nitrogen , oxygen , and sulfur , and traces of metals such as iron, nickel, copper and vanadium . Many oil reservoirs contain live bacteria. The exact molecular composition of crude oil varies widely from formation to formation but

2700-489: Is used for the crafts of horsehair hitching, horsehair braiding, pottery, and in making jewelry items such as bracelets, necklaces, earrings and barrettes. It is used to make some wall and fine arts paintbrushes . Horsehair for painting and for hat brushes are two of the areas where horsehair is still widely used today. The hair is processed, cut to size and fitted to paint brushes that are used for anything from painting walls to painting pictures to be hung in galleries. Horsehair

2790-473: Is used in manufacturing a vast variety of materials essential for modern life, and it is estimated that the world consumes about 100 million barrels (16 million cubic metres ) each day. Petroleum production played a key role in industrialization and economic development. Some countries, known as petrostates , gained significant economic and international power over their control of oil production and trade. Petroleum exploitation can be damaging to

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2880-670: The Earth's crust and be subjected to conditions which allow it to slowly transform into fossil fuels like petroleum. The latter happened through catagenesis in which the reactions were mostly radical rearrangements of kerogen. These reactions took thousands to millions of years and no external reactants were involved. Due to the radical nature of these reactions, kerogen reacted towards two classes of products: those with low H/C ratio ( anthracene or products similar to it) and those with high H/C ratio ( methane or products similar to it); i.e., carbon-rich or hydrogen-rich products. Because catagenesis

2970-484: The Orinoco Belt . While significant volumes of oil are extracted from oil sands, particularly in Canada, logistical and technical hurdles remain, as oil extraction requires large amounts of heat and water, making its net energy content quite low relative to conventional crude oil. Thus, Canada's oil sands are not expected to provide more than a few million barrels per day in the foreseeable future. Petroleum consists of

3060-780: The Soviet Union in total output. In 1973 , Saudi Arabia and other Arab nations imposed an oil embargo against the United States, United Kingdom, Japan and other Western nations which supported Israel in the Yom Kippur War of October 1973. The embargo caused an oil crisis . This was followed by the 1979 oil crisis , which was caused by a drop in oil production in the wake of the Iranian Revolution and caused oil prices to more than double. The two oil price shocks had many short- and long-term effects on global politics and

3150-533: The United States , but is responsible for only one percent of electricity generation. Petroleum's worth as a portable, dense energy source powering the vast majority of vehicles and as the base of many industrial chemicals makes it one of the world's most important commodities . The top three oil-producing countries as of 2018 are the United States, Russia , and Saudi Arabia . In 2018, due in part to developments in hydraulic fracturing and horizontal drilling ,

3240-455: The actinomycetales order of bacteria also produced antibiotic compounds (e.g., streptomycin ). Thus the action of anaerobic bacteria ceased at about 10 m below the water or sediment. The mixture at this depth contained fulvic acids, unreacted and partially reacted fats and waxes, slightly modified lignin , resins and other hydrocarbons. As more layers of organic matter settled into the sea or lake bed, intense heat and pressure built up in

3330-493: The alpaca or the Merino sheep , can be put through the wet felting process. One may also use mohair (goat) , angora (rabbit) , or hair from rodents such as beavers and muskrats . These types of fiber are covered in tiny scales, similar to the scales found on a strand of human hair. Heat, motion, and moisture of the fleece causes the scales to open, while agitating them causes them to latch onto each other, creating felt. There

3420-567: The 12th century. It has also been present in Romania since the 13th century, being recorded as păcură. Sophisticated oil pits, 4.5 to 6 metres (15 to 20 ft) deep, were dug by the Seneca people and other Iroquois in Western Pennsylvania as early as 1415–1450. The French General Louis-Joseph de Montcalm encountered Seneca using petroleum for ceremonial fires and as a healing lotion during

3510-533: The 1970s and continuing through today, felt has experienced a strong revival in interest, including its historical roots. Polly Stirling, a fiber artist from New South Wales, Australia, is commonly associated with the development of nuno felting , a key technique for contemporary art felting. German artist Joseph Beuys prominently integrates felt within his works. English artist Jenny Cowern shifted from traditional drawing and painting media into using felt as her primary media. Modern day felters with access to

3600-788: The 19th century as upholstery stuffing (such as for fabric sofas) and as covering fabric for furniture. It was almost always the fiber used to make shaving brushes . It was also common in hats and women's undergarments. It was used in the hair to create the " Gibson Girl " look, and in the 18th century it was used in wigs. Until the 20th century, it was commonly used to make fine arts paintbrushes, along with sable, fox, wolf, goat, and lamb hair. Calligraphy brushes are made from rabbit, fox, or horse hair, among others. For thousands of years, fishing lines were made of plaited horsehair. In modern times, mane and tail horsehair samples with root tissue attached are commonly used for DNA analysis of equine specimens. Private genetic testing companies regularly use

3690-494: The American Association of Petroleum Geologists. "The controversy is over how much they contribute to Earth's overall reserves and how much time and effort geologists should devote to seeking them out." Three conditions must be present for oil reservoirs to form: The reactions that produce oil and natural gas are often modeled as first order breakdown reactions, where hydrocarbons are broken down to oil and natural gas by

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3780-584: The DNA extracted from the root follicle of horsehair for relationship testing, genetic disease assays and determining coat color genetics . Felt Felt is a textile that is produced by matting, condensing, and pressing fibers together. Felt can be made of natural fibers such as wool or animal fur, or from synthetic fibers such as petroleum -based acrylic or acrylonitrile or wood pulp –based rayon . Blended fibers are also common. Natural fiber felt has special properties that allow it to be used for

3870-455: The Earth's surface. Unusual magma intrusions, however, could have created greater localized heating. Geologists often refer to the temperature range in which oil forms as an "oil window" . Below the minimum temperature oil remains trapped in the form of kerogen. Above the maximum temperature the oil is converted to natural gas through the process of thermal cracking . Sometimes, oil formed at extreme depths may migrate and become trapped at

3960-572: The Soviet Union included the goal to capture the Baku oilfields , as it would provide much-needed oil supplies for the German military which was suffering from blockades. Oil exploration in North America during the early 20th century later led to the U.S. becoming the leading producer by mid-century. As petroleum production in the U.S. peaked during the 1960s, the United States was surpassed by Saudi Arabia and

4050-555: The Spaniards in the 8th century were the first to use horsehair as a textile. However, the first documented use was from the 9th century in Switzerland where the Swiss used it for the plans of St. Gall Abbey . The plans, a blueprint for a monastic compound in medieval times, are a national preserved treasure to the Swiss that were said to have been woven with horsehair. It was commonly used in

4140-561: The United States became the world's largest producer. About 80 percent of the world's readily accessible reserves are located in the Middle East , with 62.5 percent coming from the Arab five: Saudi Arabia , United Arab Emirates , Iraq , Qatar , and Kuwait . A large portion of the world's total oil exists as unconventional sources, such as bitumen in Athabasca oil sands and extra heavy oil in

4230-609: The air at a recorded rate of 480 cubic metres (3,000 bbl) per day. By the end of the 19th century the Russian Empire, particularly the Branobel company in Azerbaijan , had taken the lead in production. Access to oil was and still is a major factor in several military conflicts of the 20th century, including World War II , during which oil facilities were a major strategic asset and were extensively bombed . The German invasion of

4320-539: The area around modern Baku , Azerbaijan . These fields were described by the Persian geographer Abu Bakr al-Razi in the 10th century, and by Marco Polo in the 13th century, who described the output of those wells as hundreds of shiploads. Arab and Persian chemists also distilled crude oil to produce flammable products for military purposes. Through Islamic Spain , distillation became available in Western Europe by

4410-507: The areas held by the Turkic-Mongolian tribes. Sheep and camel herds were central to the wealth and lifestyle of these tribes, both of which animals were critical to producing the fibers needed for felting. For nomads traveling frequently and living on fairly treeless plains felt provided housing (yurts, tents etc.), insulation, floor coverings, and inside walling, as well as many household necessities from bedding and coverings to clothing. In

4500-406: The barrel of a muzzleloader . Felt had many uses in ancient times and continues to be widely used today. Felt is frequently used in industry as a sound or vibration damper, as a non-woven fabric for air filtration, and in machinery for cushioning and padding moving parts. Felt can be used in home furnishings like table runners, placemats, coasters, and even as backing for area rugs. It can add

4590-399: The base of the project. At any point in time a variety of fibers and fiber colors may be added, using needles to incorporate them into the project. Needle felting can be used to create both 2 dimensional and 3 dimensional artwork, including soft sculpture, dolls, figurines, jewelry, and 2 dimensional wool paintings. Needle felting is popular with artists and craftspeople worldwide. One example

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4680-458: The body. Claudy Jongstra raises traditional and rare breeds of sheep with much hardier coats (Drenthe, Heath, Gotland, Schoonbeek, and Wensleydale) on her property in Friesland and these are used in her interior design projects. Exploitation of these characteristics of the fleece in tandem with the use of other techniques, such as stitching and incorporation of other fibers, provides felters with

4770-542: The broad uses of felt in that culture, including clothing, jewelry, wall hangings, and elaborate horse blankets. Employing careful color use, stitching, and other techniques, these feltmakers were able to use felt as an illustrative and decorative medium on which they could depict abstract designs and realistic scenes with great skill. Over time these makers became known for the beautiful abstract patterns they used that were derived from plant, animal, and other symbolic designs. From Siberia and Mongolia feltmaking spread across

4860-578: The carrot and the vapours it produced resulted in widespread cases of mercury poisoning among hatters . This may be the origin of the phrase " mad as a hatter " which was used to humorous effect by Lewis Carroll in the chapter "A Mad Tea Party" of the novel Alice in Wonderland . Felt is used in a wide range of industries and manufacturing processes, from the automotive industry and casinos to musical instruments and home construction , as well as in gun wadding , either inside cartridges or pushed down

4950-422: The case of nomadic peoples, an area where feltmaking was particularly visible was in trappings for their animals and for travel. Felt was often featured in the blankets that went under saddles. Dyes provided rich coloring, and colored slices of pre-felts (semi-felted sheets that could be cut in decorative ways) along with dyed yarns and threads were combined to create beautiful designs on the wool backgrounds. Felt

5040-517: The classic yurt , or ger, while others are designed for the tourist market, such as decorated slippers. In the Western world, felt is widely used as a medium for expression in both textile art and contemporary art and design, where it has significance as an ecologically responsible textile and building material. In addition to Central Asian traditions of felting, Scandinavian countries have also supported feltmaking, particularly for clothing. In

5130-474: The coal industry dominated the petroleum technologies. Chemist James Young in 1847 noticed a natural petroleum seepage in the coal mine at riddings Alfreton , Derbyshire from which he distilled a light thin oil suitable for use as lamp oil, at the same time obtaining a more viscous oil suitable for lubricating machinery. In 1848, Young set up a small business refining crude oil. Young eventually succeeded, by distilling cannel coal at low heat, in creating

5220-439: The constituent of expensive horsehair mattresses . Most horsehair comes from slaughtered horses. Hair for bows comes from tails of horses in cold climates, and is sorted by size. It comes primarily from stallions and costs $ 150–$ 400 per pound because of the sorting needed to extract long hairs. Mongolia produces 900 tons of horsehair per year. There has been some speculation as to the first use of horsehair. Many sources indicate

5310-564: The earliest Chinese writings, cites that oil in its raw state, without refining, was first discovered, extracted, and used in China in the first century BCE. In addition, the Chinese were the first to record the use of petroleum as fuel as early as the fourth century BCE. By 347 CE, oil was produced from bamboo-drilled wells in China. In the 7th century, petroleum was among the essential ingredients for Greek fire , an incendiary projectile weapon that

5400-469: The environment and human health. Extraction , refining and burning of petroleum fuels all release large quantities of greenhouse gases , so petroleum is one of the major contributors to climate change . Other negative environmental effects include direct releases, such as oil spills , as well as air and water pollution at almost all stages of use. These environmental effects have direct and indirect health consequences for humans. Oil has also been

5490-425: The fact that it happened at relatively low temperatures (when compared to commercial pyrolysis plants) of 60 to several hundred °C. Pyrolysis was possible because of the long reaction times involved. Heat for catagenesis came from the decomposition of radioactive materials of the crust, especially K , Th , U and U . The heat varied with geothermal gradient and was typically 10–30 °C per km of depth from

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5580-794: The global economy. They led to sustained reductions in demand as a result of substitution to other fuels, especially coal and nuclear, and improvements in energy efficiency , facilitated by government policies. High oil prices also induced investment in oil production by non-OPEC countries, including Prudhoe Bay in Alaska, the North Sea offshore fields of the United Kingdom and Norway, the Cantarell offshore field of Mexico, and oil sands in Canada. About 90 percent of vehicular fuel needs are met by oil. Petroleum also makes up 40 percent of total energy consumption in

5670-408: The heavier end of the range, paraffin wax is an alkane with approximately 25 carbon atoms, while asphalt has 35 and up, although these are usually cracked in modern refineries into more valuable products. The lightest fraction, the so-called petroleum gases are subjected to diverse processing depending on cost. These gases are either flared off , sold as liquefied petroleum gas , or used to power

5760-638: The invention of the modern kerosene lamp (1853), the introduction of the first modern street lamp in Europe (1853), and the construction of the world's first modern oil "mine" (1854). at Bóbrka , near Krosno (still operational as of 2020). The demand for petroleum as a fuel for lighting in North America and around the world quickly grew. The first oil well in the Americas was drilled in 1859 by Edwin Drake at what

5850-446: The joints of a mosaic style felt, feltmakers often add a backing layer of fleece that is felted along with the other components. Feltmakers can differ in their orientation to this added layer—where some will lay it on top of the design before felting and others will place the design on top of the strengthening layer. The process of felting was adapted to the lifestyles of the different cultures in which it flourished. In Central Asia, it

5940-484: The knowledge of felting. In Istanbul at one time, there were 1,000 felters working in 400 workshops registered in this ahi. Needle felting is a method of creating felt that uses specially designed needles instead of water. Felting needles have angled notches along the shaft that catch fibers and tangle them together to produce felt. These notches are sometimes erroneously called "barbs", but barbs are protrusions (like barbed wire) and would be too difficult to thrust into

6030-446: The large number of co-eluted hydrocarbons within oil, many cannot be resolved by traditional gas chromatography. This unresolved complex mixture (UCM) of hydrocarbons is particularly apparent when analysing weathered oils and extracts from tissues of organisms exposed to oil. Crude oil varies greatly in appearance depending on its composition. It is usually black or dark brown (although it may be yellowish, reddish, or even greenish). In

6120-411: The lower regions. As a consequence, compounds of this mixture began to combine in poorly understood ways to kerogen . Combination happened in a similar fashion as phenol and formaldehyde molecules react to urea-formaldehyde resins, but kerogen formation occurred in a more complex manner due to a bigger variety of reactants. The total process of kerogen formation from the beginning of anaerobic decay

6210-899: The matter to H 2 S and N 2 respectively by using the matter as a source for other reactants. Due to such anaerobic bacteria, at first, this matter began to break apart mostly via hydrolysis : polysaccharides and proteins were hydrolyzed to simple sugars and amino acids respectively. These were further anaerobically oxidized at an accelerated rate by the enzymes of the bacteria: e.g., amino acids went through oxidative deamination to imino acids , which in turn reacted further to ammonia and α-keto acids . Monosaccharides in turn ultimately decayed to CO 2 and methane . The anaerobic decay products of amino acids, monosaccharides, phenols and aldehydes combined into fulvic acids . Fats and waxes were not extensively hydrolyzed under these mild conditions. Some phenolic compounds produced from previous reactions worked as bactericides and

6300-609: The men packed their sandals with wool to prevent blisters while fleeing from persecution. At the end of their journey the movement and sweat had turned the wool into felt socks. Most likely felt's origins can be found in central Asia, where there is evidence of feltmaking in Siberia (Altai mountains) in Northern Mongolia and more recently evidence dating back to the first century CE in Mongolia. Siberian tombs (7th to 2nd century BCE) show

6390-556: The proportion of chemical elements varies over fairly narrow limits as follows: Four different types of hydrocarbon appear in crude oil. The relative percentage of each varies from oil to oil, determining the properties of each oil. The alkanes from pentane (C 5 H 12 ) to octane (C 8 H 18 ) are refined into gasoline, the ones from nonane (C 9 H 20 ) to hexadecane (C 16 H 34 ) into diesel fuel , kerosene and jet fuel . Alkanes with more than 16 carbon atoms can be refined into fuel oil and lubricating oil . At

6480-644: The refinery's own burners. During the winter, butane (C 4 H 10 ), is blended into the gasoline pool at high rates, because its high vapour pressure assists with cold starts. The aromatic hydrocarbons are unsaturated hydrocarbons that have one or more benzene rings . They tend to burn with a sooty flame, and many have a sweet aroma. Some are carcinogenic . These different components are separated by fractional distillation at an oil refinery to produce gasoline, jet fuel, kerosene, and other hydrocarbon fractions. The components in an oil sample can be determined by gas chromatography and mass spectrometry . Due to

6570-412: The reservoir it is usually found in association with natural gas, which being lighter forms a "gas cap" over the petroleum, and saline water which, being heavier than most forms of crude oil, generally sinks beneath it. Crude oil may also be found in a semi-solid form mixed with sand and water, as in the Athabasca oil sands in Canada, where it is usually referred to as crude bitumen . In Canada, bitumen

6660-509: The same time the world's first, small, oil refinery was opened at Jasło in Poland (then Austria), with a larger one opened at Ploiești in Romania shortly after. Romania (then being a vassal of the Ottoman empire) is the first country in the world to have had its annual crude oil output officially recorded in international statistics: 275 tonnes for 1857. In 1858, Georg Christian Konrad Hunäus found

6750-518: The second half of the 19th century, the term became commonly known for the liquid form of hydrocarbons. Petroleum, in one form or another, has been used since ancient times. More than 4300 years ago, bitumen was mentioned when the Sumerians used it to make boats. A tablet of the legend of the birth of Sargon of Akkad mentions a basket which was closed by straw and bitumen. More than 4000 years ago, according to Herodotus and Diodorus Siculus , asphalt

6840-446: The sides turned orange, the color of carrots. Pelts were stretched over a bar in a cutting machine, and the skin was sliced off in thin shreds, with the fleece coming away entirely. The fur was blown onto a cone-shaped colander and then treated with hot water to consolidate it. The cone then peeled off and passed through wet rollers to cause the fur to felt. These 'hoods' were then dyed and blocked to make hats. The toxic solutions from

6930-453: The steam and hot water that were already present for bathing. As felting grew in importance to a society, so, too, did the knowledge about techniques and approaches. Amateur or community felting obviously continued in many communities at the same time that felting specialists and felting centers began to develop. However, the importance of felting to community life can be seen in the fact that, in many Central Asian communities, felt production

7020-408: The term stems from monasteries in southern Italy where it was in use by the end of the first millennium as an alternative for the older term " naphtha ". After that, the term was used in numerous manuscripts and books, such as in the treatise De Natura Fossilium , published in 1546 by the German mineralogist Georg Bauer , also known as Georgius Agricola. After the advent of the oil industry, during

7110-528: The title of E.W. Binney & Co. at Bathgate in West Lothian and E. Meldrum & Co. at Glasgow; their works at Bathgate were completed in 1851 and became the first truly commercial oil-works in the world with the first modern oil refinery. The world's first oil refinery was built in 1856 by Ignacy Łukasiewicz in Austria. His achievements also included the discovery of how to distill kerosene from seep oil,

7200-411: The tone suffers. Felt is placed under the piano keys on accordions to control touch and key noise; it is also used on the pallets to silence notes not sounded by preventing air flow. Felt is used with other instruments, particularly stringed instruments, as a damper to reduce volume or eliminate unwanted sounds. Felt is used for framing paintings. It is laid between the slip mount and picture as

7290-405: The user to create unique combinations of fibers and designs. Invented in the mid 17th century and used until the mid-20th centuries, a process called "carroting" was used in the manufacture of good quality felt for making men's hats. Beaver, rabbit or hare skins were treated with a dilute solution of the mercury compound mercuric nitrate . The skins were dried in an oven where the thin fur at

7380-468: The volume of the world's reserves of conventional oil. Petroleum is a fossil fuel derived from fossilized organic materials , such as zooplankton and algae . Vast amounts of these remains settled to sea or lake bottoms where they were covered in stagnant water (water with no dissolved oxygen ) or sediments such as mud and silt faster than they could decompose aerobically . Approximately 1 m below this sediment, water oxygen concentration

7470-498: The wet felting process, hot water is applied to layers of animal hairs, while repeated agitation and compression causes the fibers to hook together or weave together into a single piece of fabric. Wrapping the properly arranged fiber in a sturdy, textured material, such as a bamboo mat or burlap , will speed up the felting process. The felted material may be finished by fulling . Only certain types of fiber can be wet felted successfully. Most types of fleece , such as those taken from

7560-506: The wool and nearly impossible to pull out. Felting needles are thin and sharp, with shafts of a variety of different gauges and shapes. Needle felting is used in industrial felt making as well as for individual art and craft applications. Felting needles are sometimes fitted in holders that allow the use of 2 or more needles at one time to sculpt wool objects and shapes. Individual needles are often used for detail while multiple needles that are paired together are used for larger areas or to form

7650-612: Was activity in various parts of the world in the mid-19th century. A group directed by Major Alexeyev of the Bakinskii Corps of Mining Engineers hand-drilled a well in the Baku region of Bibi-Heybat in 1846. There were engine-drilled wells in West Virginia in the same year as Drake's well. An early commercial well was hand dug in Poland in 1853, and another in nearby Romania in 1857. At around

7740-414: Was closed off from external reactants, the resulting composition of the fuel mixture was dependent on the composition of the kerogen via reaction stoichiometry . Three types of kerogen exist: type I (algal), II (liptinic) and III (humic), which were formed mainly from algae , plankton and woody plants (this term includes trees , shrubs and lianas ) respectively. Catagenesis was pyrolytic despite

7830-469: Was even used to create totems and amulets with protective functions. In traditional societies the patterns embedded in the felt were also imbued with significant religious and symbolic meaning. Feltmaking is still practised by nomadic peoples (such as Mongols and Turkic people ) in Central Asia , where rugs , tents and clothing are regularly made. Some of these are traditional items, such as

7920-423: Was low, below 0.1 mg/L, and anoxic conditions existed. Temperatures also remained constant. As further layers settled into the sea or lake bed, intense heat and pressure built up in the lower regions. This process caused the organic matter to change, first into a waxy material known as kerogen , found in various oil shales around the world, and then with more heat into liquid and gaseous hydrocarbons via

8010-475: Was used by Byzantine Greeks against Arab ships, which were then attacking Constantinople . Crude oil was also distilled by Persian chemists , with clear descriptions given in Arabic handbooks such as those of Abu Bakr al-Razi (Rhazes). The streets of Baghdad were paved with tar , derived from petroleum that became accessible from natural fields in the region. In the 9th century, oil fields were exploited in

8100-539: Was used in the construction of the walls and towers of Babylon ; there were oil pits near Ardericca and Babylon, and a pitch spring on Zakynthos . Great quantities of it were found on the banks of the river Issus , one of the tributaries of the Euphrates . Ancient Persian tablets indicate the medicinal and lighting uses of petroleum in the upper levels of their society. The use of petroleum in ancient China dates back to more than 2000 years ago. The I Ching , one of

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