1.
Hematite
–
Hematite, also spelled as haematite, is the mineral form of iron oxide, one of several iron oxides. Hematite crystallizes in the lattice system, and it has the same crystal structure as ilmenite. Hematite and ilmenite form a solid solution at temperatures above 950 °C. Hematite is colored black to steel or silver-gray, brown to reddish brown and it is mined as the main ore of iron. Varieties include kidney ore, martite, iron rose and specularite, while the forms of hematite vary, they all have a rust-red streak. Hematite is harder than iron, but much more brittle. Maghemite is a hematite- and magnetite-related oxide mineral, huge deposits of hematite are found in banded iron formations. Gray hematite is typically found in places that can have still standing water or mineral hot springs, the mineral can precipitate out of water and collect in layers at the bottom of a lake, spring, or other standing water. Hematite can also occur without water, however, usually as the result of volcanic activity, the name hematite is derived from the Greek word for blood αἷμα haima, due to the red coloration found in some varities of hematite. The color of hematite lends itself to use as a pigment, ochre is a clay that is colored by varying amounts of hematite, varying between 20% and 70%. Red ochre contains unhydrated hematite, whereas yellow ochre contains hydrated hematite, the principal use of ochre is for tinting with a permanent color. The red chalk writing of this mineral was one of the earliest in the history of humans, the powdery mineral was first used 164,000 years ago by the Pinnacle-Point man possibly for social purposes. Hematite residues are found in graves from 80,000 years ago. Near Rydno in Poland and Lovas in Hungary red chalk mines have been found that are from 5000 BC, rich deposits of hematite have been found on the island of Elba that have been mined since the time of the Etruscans. Adding to the surprise was a transition with a decrease in temperature at around 260 K to a phase with no net magnetic moment. The disappearance of the moment with a decrease in temperature at 260 K is caused by a change in the anisotropy which causes the moments to align along the c axis, in this configuration, spin canting does not reduce the energy. The magnetic properties of bulk hematite differ from their nanoscale counterparts, for example, the Morin transition temperature of hematite decreases with a decrease in the particle size. Two other end-members are referred to as protohematite and hydrohematite, enhanced magnetic coercivities for hematite have been achieved by dry-heating a 2-line ferrihydrite precursor prepared from solution
2.
La Paz County, Arizona
–
La Paz County is a county in the western part of the U. S. state of Arizona. As of the 2010 census, its population was 20,489, the name of the county is the Spanish word for the peace, and is taken from the early settlement of La Paz along the Colorado River. La Paz County was established in 1983 after voters approved separating the northern portion of Yuma County, the county did not have a large enough tax base to begin supporting a separate county government immediately and had to rely on state money at first. As a result, Arizona laws were changed to make splitting other existing counties much more difficult, a county formation commission is required to be formed to evaluate the feasibility of the proposed county. A proposal to divide a county must be approved by a majority of the votes cast in each proposed new county, the Colorado River Indian Reservation is located in the western portion of the county. Part of the reservation extends westward into San Bernardino and Riverside Counties in California, according to the U. S. Census Bureau, the county has a total area of 4,514 sq mi, of which 4500 sq mi is land and 14 sq mi is water. La Paz County hosts a variety of flora and fauna, the endangered California Fan Palm, Washingtonia filifera grows in a few spots in the county. The population density was 4.4 people per square mile, there were 15,133 housing units at an average density of 3. 4/sq mi. 22. 42% of the population were Hispanic or Latino of any race,18. 90% reported speaking Spanish at home. 26. 60% of households were made up of individuals and 12. 90% had someone living alone who was 65 years of age or older, the average household size was 2.32 and the average family size was 2.79. The county population had 21. 10% under the age of 18,6. 10% from 18 to 24,20. 40% from 25 to 44,26. 60% from 45 to 64, the median age was 47 years. For every 100 females there were 105.50 males, for every 100 females age 18 and over, there were 105.10 males. The median income for a household in the county was $25,839, males had a median income of $26,642 versus $20,965 for females. The per capita income for the county was $14,916, about 13. 60% of families and 19. 60% of the population were below the poverty line, including 28. 50% of those under age 18 and 12. 90% of those age 65 or over. As of the 2010 United States Census, there were 20,489 people,9,198 households, the population density was 4. 5//sq mi. There were 16,049 housing units at a density of 3. 56/sq mi. The racial makeup of the county was 69. 8% white,12. 8% American Indian,0. 6% black or African American,0. 5% Asian,12. 5% from other races, and 3. 7% from two or more races. Those of Hispanic or Latino origin made up 23. 5% of the population, in terms of ancestry,22. 4% were German,15. 9% were Irish,15. 3% were English, and 2. 1% were American
3.
Arizona
–
Arizona is a state in the southwestern region of the United States. It is also part of the Western United States and the Mountain West states and it is the sixth largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix, Arizona is one of the Four Corners states. It has borders with New Mexico, Utah, Nevada, California, and Mexico, Arizonas border with Mexico is 389 miles long, on the northern border of the Mexican states of Sonora and Baja California. Arizona is the 48th state and last of the states to be admitted to the Union. Historically part of the territory of Alta California in New Spain, after being defeated in the Mexican–American War, Mexico ceded much of this territory to the United States in 1848. The southernmost portion of the state was acquired in 1853 through the Gadsden Purchase, Southern Arizona is known for its desert climate, with very hot summers and mild winters. There are ski resorts in the areas of Flagstaff, Alpine, in addition to the Grand Canyon National Park, there are several national forests, national parks, and national monuments. To the European settlers, their pronunciation sounded like Arissona, the area is still known as alĭ ṣonak in the Oodham language. Another possible origin is the Basque phrase haritz ona, as there were numerous Basque sheepherders in the area, There is a misconception that the states name originated from the Spanish term Árida Zona. See also lists of counties, islands, rivers, lakes, state parks, national parks, Arizona is in the Southwestern United States as one of the Four Corners states. Arizona is the sixth largest state by area, ranked after New Mexico, of the states 113,998 square miles, approximately 15% is privately owned. The remaining area is public forest and park land, state trust land, Arizona is well known for its desert Basin and Range region in the states southern portions, which is rich in a landscape of xerophyte plants such as the cactus. This regions topography was shaped by volcanism, followed by the cooling-off. Its climate has hot summers and mild winters. The state is well known for its pine-covered north-central portion of the high country of the Colorado Plateau. Like other states of the Southwest United States, Arizona has an abundance of mountains, despite the states aridity, 27% of Arizona is forest, a percentage comparable to modern-day France or Germany. The worlds largest stand of pine trees is in Arizona
4.
ZIP Code
–
ZIP Codes are a system of postal codes used by the United States Postal Service since 1963. The term ZIP, an acronym for Zone Improvement Plan, was chosen to suggest that the travels more efficiently, and therefore more quickly. The basic format consists of five numerical digits, an extended ZIP+4 code, introduced in 1983, includes the five digits of the ZIP Code, a hyphen, and four additional digits that determine a more specific location within a given ZIP Code. The term ZIP Code was originally registered as a servicemark by the U. S. Postal Service, USPS style for ZIP is all caps and the c in code is also capitalized, although style sheets for some publications use sentence case or lowercase. The early history and context of postal codes began with postal district/zone numbers, the United States Post Office Department implemented postal zones for numerous large cities in 1943. For example, Mr. John Smith 3256 Epiphenomenal Avenue Minneapolis 16, by the early 1960s a more organized system was needed, and on July 1,1963, non-mandatory five-digit ZIP Codes were introduced nationwide. Three months later, on October 1,1963, the U. S, an earlier list in June had proposed capitalized abbreviations ranging from two to five letters. The abbreviations have remained unchanged, with one exception, according to the historian of the U. S. Robert Moon, an employee of the post office, is considered the father of the ZIP Code, he submitted his proposal in 1944 while working as a postal inspector. The post office gives credit to Moon only for the first three digits of the ZIP Code, which describe the sectional center facility or sec center, an SCF is a central mail processing facility with those three digits. The SCF sorts mail to all post offices with those first three digits in their ZIP Codes, the mail is sorted according to the final two digits of the ZIP Code and sent to the corresponding post offices in the early morning. Sectional centers do not deliver mail and are not open to the public, Mail picked up at post offices is sent to their own SCF in the afternoon, where the mail is sorted overnight. The United States Post Office used a character, which it called Mr. ZIP. He was often depicted with a such as USE ZIP CODE in the selvage of panes of stamps or on labels contained in, or the covers of. In 1983, the U. S. Postal Service introduced an expanded ZIP Code system that it called ZIP+4, often called plus-four codes, add-on codes, or add ons. But initial attempts to promote use of the new format met with public resistance. For Post Office Boxes, the rule is that each box has its own ZIP+4 code. However, there is no rule, so the ZIP+4 Code must be looked up individually for each box. It is common to use add-on code 9998 for mail addressed to the postmaster,9999 for general delivery, for a unique ZIP Code, the add-on code is typically 0001
5.
United States Army
–
The United States Armed Forces are the federal armed forces of the United States. They consist of the Army, Marine Corps, Navy, Air Force, from the time of its inception, the military played a decisive role in the history of the United States. A sense of unity and identity was forged as a result of victory in the First Barbary War. Even so, the Founders were suspicious of a permanent military force and it played an important role in the American Civil War, where leading generals on both sides were picked from members of the United States military. Not until the outbreak of World War II did a standing army become officially established. The National Security Act of 1947, adopted following World War II and during the Cold Wars onset, the U. S. military is one of the largest militaries in terms of number of personnel. It draws its personnel from a pool of paid volunteers. As of 2016, the United States spends about $580.3 billion annually to fund its military forces, put together, the United States constitutes roughly 40 percent of the worlds military expenditures. For the period 2010–14, the Stockholm International Peace Research Institute found that the United States was the worlds largest exporter of major arms, the United States was also the worlds eighth largest importer of major weapons for the same period. The history of the U. S. military dates to 1775 and these forces demobilized in 1784 after the Treaty of Paris ended the War for Independence. All three services trace their origins to the founding of the Continental Army, the Continental Navy, the United States President is the U. S. militarys commander-in-chief. Rising tensions at various times with Britain and France and the ensuing Quasi-War and War of 1812 quickened the development of the U. S. Navy, the reserve branches formed a military strategic reserve during the Cold War, to be called into service in case of war. Time magazines Mark Thompson has suggested that with the War on Terror, Command over the armed forces is established in the United States Constitution. The sole power of command is vested in the President by Article II as Commander-in-Chief, the Constitution also allows for the creation of executive Departments headed principal officers whose opinion the President can require. This allowance in the Constitution formed the basis for creation of the Department of Defense in 1947 by the National Security Act, the Defense Department is headed by the Secretary of Defense, who is a civilian and member of the Cabinet. The Defense Secretary is second in the chain of command, just below the President. Together, the President and the Secretary of Defense comprise the National Command Authority, to coordinate military strategy with political affairs, the President has a National Security Council headed by the National Security Advisor. The collective body has only power to the President
6.
Marriage
–
The definition of marriage varies according to different cultures, but it is principally an institution in which interpersonal relationships, usually sexual, are acknowledged. In some cultures, marriage is recommended or considered to be compulsory before pursuing any sexual activity, when defined broadly, marriage is considered a cultural universal. Individuals may marry for several reasons, including legal, social, libidinal, emotional, financial, spiritual, whom they marry may be influenced by socially determined rules of incest, prescriptive marriage rules, parental choice and individual desire. In some areas of the world, arranged marriage, child marriage, polygamy, conversely, such practices may be outlawed and penalized in parts of the world out of concerns for womens rights and because of international law. These trends coincide with the human rights movement. Marriage can be recognized by a state, an organization, an authority, a tribal group. It is often viewed as a contract, Marriages can be performed in a secular civil ceremony or in a religious setting via a wedding ceremony. The act of marriage usually creates normative or legal obligations between the individuals involved, and any offspring they may produce, some cultures allow the dissolution of marriage through divorce or annulment. In some areas, child marriages and polygamy may occur in spite of laws against the practice. For example, the number of marriages in Europe decreased by 30% from 1975 to 2005 and these changes have occurred primarily in Western countries. The word marriage derives from Middle English mariage, which first appears in 1250–1300 CE and this in turn is derived from Old French, marier, and ultimately Latin, marītāre, meaning to provide with a husband or wife and marītāri meaning to get married. The adjective marīt-us -a, -um meaning matrimonial or nuptial could also be used in the form as a noun for husband. Anthropologists have proposed several competing definitions of marriage in an attempt to encompass the wide variety of marital practices observed across cultures, even within Western culture, definitions of marriage have careened from one extreme to another and everywhere in between. The anthropological handbook Notes and Queries defined marriage as a union between a man and a such that children born to the woman are the recognized legitimate offspring of both partners. In recognition of a practice by the Nuer people of Sudan allowing women to act as a husband in certain circumstances, Kathleen Gough suggested modifying this to a woman, none of these men had legal rights to the womans child. Economic anthropologist Duran Bell has criticized the definition on the basis that some societies do not require marriage for legitimacy. He argued that a definition of marriage is circular in societies where illegitimacy has no other legal or social implications for a child other than the mother being unmarried. In 1955 article in Man, Leach argued that no one definition of marriage applied to all cultures and he offered a list of ten rights associated with marriage, including sexual monopoly and rights with respect to children, with specific rights differing across cultures
7.
Chicken
–
The chicken is a type of domesticated fowl, a subspecies of the red junglefowl. It is one of the most common and widespread domestic animals, humans keep chickens primarily as a source of food, consuming both their meat and their eggs. From India, the chicken was imported to Lydia in western Asia Minor. In the UK and Ireland adult male chickens over the age of one year are known as cocks, whereas in America, Australia. Males less than a year old are cockerels, females over a year old are known as hens and younger females as pullets although in the egg-laying industry, a pullet becomes a hen when she begins to lay eggs at 16 to 20 weeks of age. In Australia and New Zealand, there is a generic term chook /ˈtʃʊk/ to describe all ages, the young are called chicks and the meat is called chicken. Chicken originally referred to domestic fowl. The species as a whole was then called domestic fowl, or just fowl. This use of chicken survives in the phrase Hen and Chickens, sometimes used as a British public house or theatre name, the word chicken is sometimes erroneously construed to mean females exclusively, despite the term hen for females being in wide circulation. In the Deep South of the United States chickens are also referred to by the slang term yardbird, in the wild, they often scratch at the soil to search for seeds, insects and even animals as large as lizards, small snakes or young mice. Chickens may live for five to ten years, depending on the breed, the worlds oldest chicken was a hen which died of heart failure at the age of 16 according to Guinness World Records. However, in some breeds, such as the Sebright chicken, the rooster has only slightly pointed neck feathers, the identification can be made by looking at the comb, or eventually from the development of spurs on the males legs. Adult chickens have a fleshy crest on their heads called a comb, or cockscomb, collectively, these and other fleshy protuberances on the head and throat are called caruncles. Both the adult male and female have wattles and combs, a muff or beard is a mutation found in several chicken breeds which causes extra feathering under the chickens face, giving the appearance of a beard. Domestic chickens are not capable of long distance flight, although birds are generally capable of flying for short distances. Chickens may occasionally fly briefly to explore their surroundings, but generally do so only to flee perceived danger, Chickens are gregarious birds and live together in flocks. They have an approach to the incubation of eggs and raising of young. Individual chickens in a flock will dominate others, establishing an order, with dominant individuals having priority for food access
8.
Gristmill
–
A gristmill grinds grain into flour. The term can refer to both the mechanism and the building that holds it. The Greek geographer Strabo reports in his Geography a water-powered grain-mill to have existed near the palace of king Mithradates VI Eupator at Cabira, Asia Minor, before 71 BC. The early mills had horizontal paddle wheels, an arrangement which became known as the Norse wheel. The paddle wheel was attached to a shaft which was, in turn, the turning force produced by the water on the paddles was transferred directly to the runner stone, causing it to grind against a stationary bed, a stone of a similar size and shape. This dependence on the volume and speed of flow of the water meant that the speed of rotation of the stone was highly variable. Vertical wheels were in use in the Roman Empire by the end of the first century BC, and these were described by Vitruvius. The peak of Roman technology is probably the Barbegal aqueduct and mill where water with a 19-metre fall drove sixteen water wheels, giving a grinding capacity estimated at 2.4 to 3.2 tonnes per hour. Water mills seem to have remained in use during the post-Roman period, from this time onward, water wheels began to be used for purposes other than grist milling. In England, the number of mills in operation followed population growth, limited extant examples of gristmills can be found in Europe from the High Middle Ages. An extant well-preserved waterwheel and gristmill on the Ebro River in Spain is associated with the Real Monasterio de Nuestra Senora de Rueda, the Cistercians were known for their use of this technology in Western Europe in the period 1100 to 1350. Geared gristmills were built in the medieval Near East and North Africa. Gristmills in the Islamic world were powered by water and wind. The first wind-powered gristmills were built in the 9th and 10th centuries in what are now Afghanistan, Pakistan and Iran, early mills were almost always built and supported by farming communities and the miller received the millers toll in lieu of wages. Most towns and villages had their own mill so that farmers could easily transport their grain there to be milled. These communities were dependent on their local mill as bread was a part of the diet. Classical mill designs are usually water powered, though some are powered by the wind or by livestock, in a watermill a sluice gate is opened to allow water to flow onto, or under, a water wheel to make it turn. In most watermills the water wheel was mounted vertically, i. e. edge-on, in the water, later designs incorporated horizontal steel or cast iron turbines and these were sometimes refitted into the old wheel mills
9.
Parker, Arizona
–
Parker is the county seat of La Paz County, Arizona, United States, on the Colorado River in Parker Valley. The population was 3,083 at the 2010 census, founded in 1908, the town was named after Ely Parker, the first Native American commissioner for the U. S. government. The original town site of Parker was surveyed and laid out in 1909 by a railroad location engineer by the name of Earl, H. Parker for the Arizona & California Railway. Parker is located at 34°8′41″N 114°17′23″W, according to the United States Census Bureau, the town has a total area of 22.0 square miles, of which,22.0 square miles of it is land and 0. 05% is water. The undeveloped territory consist of unpaved roads. Of the few that are paved Mohave Road is the most utilized between the town and the territory. The same road can be taken 15.5 miles south to the Town of Poston which is famous for its relocation camps for Japanese Americans during WWII, Parker has an arid climate classification, which is characterized by extremely hot summers and warm winters. Wintertime highs in Parker are generally in the upper 60s to lower 70s, lows during the winter are between 40 to 50 °F with an occasional morning dipping below 32 °F. Summers in Parker can be hot, with highs in June, July, August. April and May both average 90 to 100 °F daytime highs, even the month of October has an average high of 90.0 °F. The all-time highest recorded temperature in Parker was 127 °F, which occurred on July 7,1905 and this was, at the time, the all-time record high in Arizona history until Lake Havasu City reached 128 °F on June 29,1994. Rainfall is uniformly scanty throughout the year in Parker, with no month averaging more than three days with measurable rainfall, the monsoon storms that provide much of the rain in southern and eastern parts of Arizona seldom effect Parker. The wettest calendar year has been 1992 with 13.59 inches – though from July 1992 to June 1993 the figure was higher still at 13.74 inches –. As of the census in 2000, there were 3,140 people,1,064 households, the population density was 142.8 people per square mile. There were 1,157 housing units at a density of 52.6 per square mile. The racial makeup of the town was 62. 04% White,1. 88% Black or African American,23. 09% Native American,0. 86% Asian,0. 16% Pacific Islander,7. 45% from other races, and 4. 52% from two or more races. 29. 78% of the population were Hispanic or Latino of any race,20. 6% of all households were made up of individuals and 8. 4% had someone living alone who was 65 years of age or older. The average household size was 2.93 and the family size was 3.38
10.
Town
–
A town is a human settlement larger than a village but smaller than a city. The size definition for what constitutes a town varies considerably in different parts of the world, the word town shares an origin with the German word Zaun, the Dutch word tuin, and the Old Norse tun. The German word Zaun comes closest to the meaning of the word. An early borrowing from Celtic *dunom, in English and Dutch, the meaning of the word took on the sense of the space which these fences enclosed. In England, a town was a community that could not afford or was not allowed to build walls or other larger fortifications. In the Netherlands, this space was a garden, more specifically those of the wealthy, in Old Norse tun means a place between farmhouses, and is still used in a similar meaning in modern Norwegian. If there was any distinction between toun and burgh as claimed by some, it did not last in practice as burghs, for example, Edina Burgh or Edinburgh was built around a fort and eventually came to have a defensive wall. In some cases, town is a name for city or village. Sometimes, the town is short for township. A places population size is not a determinant of urban character. In many areas of the world, as in India at least until recent times, in the United Kingdom, there are historical cities that are far smaller than the larger towns. Some forms of settlement, such as temporary mining locations, may be clearly non-rural. Towns often exist as governmental units, with legally defined borders. In the United States these are referred to as incorporated towns, in other cases the town lacks its own governance and is said to be unincorporated. Note that the existence of a town may be legally set forth through other means. In the case of planned communities, the town exists legally in the form of covenants on the properties within the town. Australian geographer Thomas Griffith Taylor proposed a classification of towns based on their age, although there is no official use of the term for any settlement. In Albanian qytezë means small city or new city, while in ancient times small residential center within the walls of a castle
![Gold on hematite from the old Dutchman Mine near Bouse [1]](/wiki/File:Gold-Hematite-164016.jpg)
