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Courier

Courier

: This article discusses delivery couriers; for the font see Courier (font), for the mail transfer agent see Courier IMAP. A courier is a person or company that delivers packages and mail, often between offices and generally in a shorter timescale than surface mail. In cities, some couriers will ride bicycles or motorbikes but most today use trucks and aircraft. The term courier can also be used for a certain kind of robots, courier robots, that transport objects in a building (home, industry, and others). There are many courier enterprises. The world's largest courier company is UPS followed by FedEx. Another sort of courier is a "cash-courier". This is someone who carries large amounts of cash money from one place to another (from one country to another) to avoid the normal financial circuit (where they risk being reported to an anti-moneylaundering authority) and thus launder money from an illegal origin.

History

Couriers of some kind have likely existed before first regular postal system has been invented. The first documented use of an organized courier service for the diffusion of written documents is in Egypt, where Pharaohs used couriers for the diffusion of their decrees in the territory of the State (2400 BC). This practice almost certainly has roots in the much older practice of oral messaging and may have been built on a pre-existing infrastructure.

Courier (font)

Courier is a monospace font that resembles the output from a typewriter. The typeface was created by Howard "Bud" Kettler in 1955. The design of the original Courier New typeface was commissioned in the 1950s by IBM for use in typewriters, but they did not secure legal exclusivity to the typeface and it soon became a standard font used throughout the typewriter industry. As a monospaced font, it has recently found renewed use in the electronic world in situations where columns of characters must be consistently aligned. It has also become an industry standard for all screenplays to be written in 12 pt Courier or a close variant, and it is widely used by computer programmers to write source code. 12 point Courier New was also the US State Department's standard typeface until January 2004, when it was replaced with 14 point Times New Roman. Reasons for the change included the desire for a more "modern" and "legible" font. Kettler was once quoted about how the name was chosen. The font was nearly released with the name "Messenger." After giving it some thought, Kettler said, "A letter can be just an ordinary messenger, or it can be the courier, which radiates dignity, prestige, and stability."

In ASCII Art

Courier is commonly used in ASCII art because it is a monospace font (which makes it easy to use) and is available almost universally. "Solid-style" ASCII art uses the darkness/lightness of each character to portray an object, which can be quantified in pixels (here in pt. 12):

External links

- [http://www.abc.net.au/news/newsitems/s1034726.htm US bans time-honoured typeface]
- [http://www.microsoft.com/typography/fonts/font.aspx?FID=10&FNAME=Courier%20New Courier New font information] (Microsoft typography)
- [http://prdownloads.sourceforge.net/corefonts/courie32.exe?download Downloadable version of Courier New] (Web core fonts)
- [http://www.graphos.org/courier.html Designer of Courier: the Bud Kettler Page] Category:Monospace typefaces

Courier IMAP

The Courier mail transfer agent (MTA) is an integrated mail/groupware server based on open commodity protocols, such as ESMTP, IMAP, POP3, LDAP, SSL/TLS, and HTTP. Courier provides ESMTP, IMAP, POP3, webmail, and mailing list services within a single, consistent framework. Individual components can be enabled or disabled at will. Courier now implements basic web-based calendaring and scheduling services integrated in the webmail module. Advanced groupware calendaring services will follow soon. Courier's source code should compile on most POSIX-based operating systems based on Linux, and BSD-derived kernels. Courier should also compile on Solaris and AIX, with some help from Sun's or IBM's freeware add-on tools for their respective operating systems. Courier evolved out of several related projects that merged together. Courier implements SMTP extensions for mailing list management and spam filtering. Courier can function as an intermediate mail relay, relaying mail between an internal LAN and the Internet, or perform final delivery to mailboxes. Courier uses maildir as its native mail storage format, but it can also deliver mail to legacy mailbox files as well. Courier's configuration is set by plain text files and Perl scripts. Most of Courier's configuration can now be adjusted from a web browser, using its web-based administration module. Courier can provide mail services for regular operating system accounts. It can also provide mail services for virtual mail accounts, managed by an LDAP, MySQL, or PostgreSQL-based authentication database. Certain portions of Courier - the mail filtering engine, the webmail server, and the IMAP server - are also available as separate, smaller, packages that can be used with other mail servers.

External links

- [http://www.courier-mta.org/ Courier MTA]
- [http://www.courier-mta.org/imap/ Courier IMAP] Category:Mail transport agents

Person

Person, in the classic sense, refers to a living human being. However, in philosophy, there has been debate over the precise meaning and correct usage of the term, whether the classical definition should be expanded or in some cases reduced, and which constituent elements or criteria must exist to establish personhood.

Are all persons human?

Firstly, there is the simple and traditional view that the common usage is the correct one: that "person" does indeed mean "human". However, this runs into the problem that the term "person" has a somewhat loaded meaning - we commonly believe that all and only persons have certain rights, for example, the right to life. Some would go so far as to say that all and only persons are sacred. However, we can imagine the hypothetical alien from another planet, who, despite not being human, nevertheless has every trait that we see as being essential for this protected status that elevates it above mere objects. Thus, many claim that the simple view implies a sort of arrogant speciesism. There are also religious views that attribute personhood to supernatural beings such as gods, angels, demons, elves, and so on. Similar ethical debates centre around the question of animal rights and artificial intelligence. Some would argue that humans have an amount of hubris that could potentially prevent us from recognizing the personhood of other sentient species. Some argue that certain primates and cetaceans (particularly the most highly intelligent species, such as the Great Apes and dolphins and killer whales) possess enough of the commonly held criteria for personhood to be considered persons. Recently corvids (crow species) have been recognized as highly intelligent tool users and strategists, while parrots display more linguistic intelligence. (see also animal intelligence and animal cognition). In fact, it is possible to teach a gorilla sign language, as evidenced by the case of Koko, who has expressed pride and flattery at having been awarded a place in the Guinness Book of Records for this. Some extend the list still further. In the future sentient programs and computers may even emerge, extending the argument beyond all biological realms. The issue of how we might discern whether artificial information processing systems are conscious will likely become a matter of important debate. Alan Turing first suggested that we give convincing machines or programs the benefit of the doubt, using his Turing test. However, even a simple chatbot can fool people for a time. The best evidence for consciousness or "sentience" would be the subjective reports of people undergoing gradual replacement of brain tissue with artificial processors (see cyborgs). For example, surgeons are already beginning to integrate artificial "neural prosthetics" in patients to repair some forms of brain damage. At some point such a person's cognitive system could require no biological elements. Because the process is gradual, the success or failure of the facilitation of phenomenal elements of conscious experience in a particular device could be reported by a person whom we are pragmatically warranted is considered conscious from the outset. At least in artificial systems designed in the same manner, we would be much more warranted in ascribing personhood than the low standards of the Turing test. Justification would become extremely high for ascribing personhood to any artificial cognitive system that either (1) became artificial through a gradual process of "cyborgization" (permitting subjective reports from a highly trusted source) or (2) was an artificial cognitive system whose design replicated a completely artificial stage of a cyborgization process that has been proven effective, in all relevant respects (e.g. not "personality," but the same type of hardware, organization, and operations). An elaboration on this theme is sometimes called "uploading", though the term carries baggage. "Uploading" here refers to a theoretical transfer of a mind to an artificial environment. Uploading proposals tend to assume that the mind does not persist through time in a substantial way (usually theoretically grounded on "deep reductivist" arguments that there is no soul or "self") so making a "copy" of brain structures is - in terms of survival - just as good as preserving the original structure. Advocates also tend to believe that such a copy would have conscious experience rather than merely acting as a convincing automaton. Reservations aside though, there does not seem to be any intrinsic reason that, some day, the mind of a human subject could not gradually extend into a functional simulation running on an advanced supercomputer. Related to this idea are cyberpunk/postcyberpunk science fiction (especially Ghost in the Shell) and the Transhumanist movement.

Are all humans persons?

There are certain challenges to the classical view regarding disputes over whether certain humans are persons. For example, in the abortion controversy, although the fetus is clearly of the human species, the personhood of the fetus has been challenged and has become a matter of debate. Some argue that an early stage a fetus is not a person, because of its lack of any form of consciousness, while others would argue that they are persons because they are human, or because they will develop into conscious beings. Also, in the case of a victim of severe brain damage who has no mental activity, many would concede that the person has ceased to exist, leaving only an "empty shell".

Possible criteria for personhood

The above points seem to indicate that there may be persons that are not human, and there may be humans that are not persons. For these reasons, many philosophers have tried to give a more precise definition, focusing on some trait or traits that all persons, real and hypothetical, must possess. The most obvious such trait that individuals considered persons usually possess is a conscious mind, typically (but not necessarily) with plans, goals, desires, hopes, fears, and so on. These traits therefore form a natural set of criteria for personhood. Despite this, these criteria are controversial. In particular, some have argued that these criteria fail to recognize babies as persons. Although they meet some of the criteria, such as some degree of consciousness, and the ability to feel pain, the mental abilities of a newborn baby often seem to some to be no more impressive than many animals not commonly considered persons. Another problematic example is the status of a person in deep sleep, with no consciousness at the moment, but who upon waking would return to being an entity with full subjective awareness in the future. However, this latter case becomes less problematic with the assistance of theories of embodied subjectivity (mind-brain identity or unity), which allow for the persistence of an intelligent physical system that both has been self-aware in the past and has the capacity to continue being self-aware in the future. A variation of this example is a "reversibly comatose patient," though criteria for reversibility complicate such an analysis. Because of these problems, some philosophers suggest that the potential to become fully thinking beings is sufficient to convey personhood, regardless of present mental status. Others take this view for essentially religious reasons. A consequence of this view is that an embryo would be considered a person from conception; but others see the idea of a single cell - with absolutely no mind of any sort - being a person as counterintuitive. It is a matter of debate when in development any conscious awareness is possible, as seemingly cognitive behaviour that may or may not be attributable to stimuli can be seen at multiple stages in a pregnancy. Nevertheless, consistent correlative evidence enables us to rule out awareness in the early and middle stages of foetal development with a high degree of confidence. As is reported in the August 24, 2005 Clinical Review article, Foetal Pain: A Systematic Multidisciplinary Review of the Evidence, at 29 weeks of development fetuses have mature somatosensory evoked potentials that indicate that pain signals travel above the spine, through the thalamus and to the somatosensory cortex; and at around 30 weeks of development the brain's EEG signals suggest the first signs of wakefulness. Wakefulness is a necessary condition for any awareness, including pain recognition, but is insufficient for awareness without a functional somatosensory cortex to recognize pain signals as such - which is lacking for people in permanently vegetative states. Because these two necessary conditions for consciousness do not occur before the 29th week of development, fetuses cannot be consciously aware (and therefore subjects of experience) before the 29th week. Another view amongst scholars is that personhood is not all-or-nothing: there can be degrees of personhood, based on how close to a fully working mind the individual in question has. Thus, a typical adult is entirely a person, while a human permanently in a persistent vegetative state would not be considered a person at all. Partial personhood is tacitly recognized by law in most cultures as reflected by parental rights and obligations, and in legal treatment of minors, the mentally handicapped, and the comatose. However, other philosophers argue that the concept of an incomplete or partial person is dangerous, possibly leading to weakened protection for those not considered complete persons. Others would argue that we are all incomplete or "developing" persons regardless of our developmental state.

Personhood theory

According to Boethius: :Person is an individual substance of rational nature. As individual it is material, since matter supplies the principle of individuation. The soul is not person, only the composite is. Man alone is among the material beings person, he alone having a rational nature. He is the highest of the material beings, endowed with particular dignity and rights. In recent years a kind of consensus among secular scholars has emerged, which might be referred to as "personhood theory". The criteria a person must have in personhood theory are one or more of the following: # Consciousness, # The ability to steer one's attention and action purposively, # Self-awareness, self-bonded to objectivities (existing independently of the subject's perception of it), # Self as longitudinal thematic identity, one's biographic identity. Neo-Kantian philosophers over the last two decades have emphasized that conscious awareness requires both: # The sensorial capacity to access an environment (and one's own body) in a way that offers the basic qualitative content for subjective experience. # The intellectual capacity to conceptually interpret sensorial content as representing some thing to oneself. Both of these capacities are required for a subject of experience, action, thought, or self-reflection to exist, at least in the physically embodied, world-accessing manner of humans (and presumably other intelligent animals). As Kant wrote: Without sensibility no object would be given to us, and without understanding none would be thought. Thoughts without content are empty, intuitions without concepts are blind. (Critique of Pure Reason, A 51 = B 75). For those who consider an embodied capacity for subjectivity as necessary for personhood, these abstract constraints are quite relevant to the personhood theory debate. Advocates of alternative positions, such as a biological species or potentiality criterion, would instead need to provide arguments against embodied subjectivity as a basis for personhood. For example, one might argue that property claims are made by immaterial minds on immature material bodies, though any claim as to the nature of such minds would be necessarily speculative and would typically involve an argument for Cartesian substance dualism (see "mind-body problem").

Implications of the personhood debate

Personhood theory has become a pivotal issue in the interdisciplinary field of bioethics. While historically most humans did not enjoy full legal protection as "persons" (women, children, non-landowners, minorities, slaves, etc.), from the late 18th through the late 20th century being born as a member of the human species gradually became secular grounds for an appeal for basic rights of liberty, freedom from persecution, and humanitarian care. Since modern movements emerged to oppose animal cruelty (and advocate vegetarian or vegan lifestyles) and theorists like Turing have recognized the possibility of artificial minds with human-level competence, the identification of personhood protections exclusively with human species membership has been challenged. On the other hand, some proponents of "human exceptionism" (also referred to as "speciesism") have countered that we must institute a strict demarcation of personhood based on species membership in order to avoid the horrors of genocide (based on propaganda dehumanizing one or more ethnicities) or the injustices of forced sterilization (as occurred in the U.S. to people with low I.Q. scores and prisoners). While the former advocates tend to be comfortable constraining personhood status within the human species based on basic capacities (e.g. excluding human stem cells, fetuses, and bodies that cannot recover awareness), the latter often wish to include all these forms of human bodies even if they have never had awareness (which some would call "pre-persons") or had awareness, but could never have awareness again due to massive and irrecoverable brain damage (some would call these "post-persons"). The Vatican has recently been advancing a human exceptionist understanding of personhood theory, while other communities such as Christian Evangelicals in the U.S. have sometimes rejected personhood theory as biased against human exeptionism. Of course, many religious communities (of many traditions) find the more politically "progressive" versions of personhood theory perfectly compatible with their faith, as do the majority of modern Humanists. The theoretical landscape of personhood theory has been altered recently by controversy in the bioethics community concerning an emerging community of scholars, researchers and activists identifying with an explicitly Transhumanist position, which supports morphological freedom even if some people change so much as to no longer be considered members of the human species (whatever standard is used for this determination). Francis Fukuyama first brought the transhumanist philosophy to the attention of the bioethics community in 2002 with his critical book, Our Posthuman Future, in which he presents a bioconservative view.

Individual rights and responsibility

Closely related to the debate on the definition of personhood is the relationship between persons, individual rights, and ethical responsibility. Many philosophers would agree that all and only persons are expected to be ethically responsible, and that all persons deserve a varying degree of individual rights (see human rights). There is less consensus on whether only persons deserve individual rights and whether persons deserve greater individual rights than non-persons. The rights of non-person animals are an example of contention on this issue (see animal rights).

Corporations as persons

See also legal entity (artificial person) and natural person Largely separate from the discussion of "real" persons are considerations regarding artificial persons such as corporations and states. In Santa Clara County v. Southern Pacific Railroad Company the United States Supreme Court ruled that a corporation is considered a person for many legal purposes. Many question the wisdom of this; the philosopher John Ralston Saul said, "If you are a person before the law and Exxon or Ford is also a person, it is clear that the concept of democratic legitimacy lying with the individual has been mortally wounded." It must be emphasized that corporate personhood is a legal fiction -- in other terms, a convenient assumption adopted for practical reasons that is not necessarily accepted as true (see also the documentary film The Corporation).

References

- Stanford Encyclopedia of Philosophy
- [http://www.iep.utm.edu/ The Internet Encyclopedia of Philosophy]
- Fetal Pain: A Systematic Multidisciplinary Review of the Evidence, Clinical Review August 24, 2005 Category:Humans Category:Personal life Category:Philosophical terminology

Company (law)

A company is, in general, any group of persons (known as its members) united to pursue a common interest. The term is thus synonymous with association, but more often it is used specifically to identify associations formed for profit, such as the partnership, the joint-stock company, and the for-profit corporation. A company is not necessarily a corporation, and thus may not have a separate existence from its members. A company might also not be able to sue or be sued in its own name, and thus would not be considered to be a legal person. Whether a company has either of these characteristics depend on the law of the jurisdiction. For example, in UK law, a company is a legal person with a separate identity from its members, and thus would be a form of corporation. Such companies can be formed with only one member, who need not be (though usually is) a director or secretary. Such companies must have at least one director and a company secretary, and a sole director cannot also be company secretary. Directors and company secretaries can be either individuals or corporate entities, and there are almost no nationality and residence restrictions, although there must be an office within the UK, registered with Companies House. The most important legislation governing company law is found in the Companies Act 1985 and to a lesser extent the Companies Act 1989. Several documents are required under UK law in order for an incorporation to occur. Amongst these is the memorandum of association. Although associations of persons carrying on business must have existed from time immemorial, the oldest continually-operating business in existence is Japanese firm Kongo Gumi, which was founded in the sixth century.

Mail

]] The postal system is a system by which written documents typically enclosed in envelopes, and also small packages containing other matter, are delivered to destinations around the world. Anything sent through the postal system is called mail or post. In principle, a postal service can be private or official. Restrictions are generally placed on private systems by governments. Since the 19th century, national postal systems have generally been established as government monopolies with a fee on the article prepaid, often in the form of adhesive stamps. Government monopolies generally do not extend to delivery of parcels or to courier services, which provide express delivery. Postal systems often have functions other than sending letters. In some countries, the postal system also has some authority over telephone and telegraph systems. In others, postal systems allow for savings accounts and handling applications for passports.

Early postal systems

courier Communication via written documents which an intermediary carries from one person or place to another almost certainly dates back nearly to the invention of writing. The development of a formal postal system occurred much later, however. The first documented use of an organized courier service for the diffusion of written documents is in Egypt, where Pharaohs used couriers for the diffusion of their decrees in the territory of the State (2400 BC). This practice almost certainly has roots in the much older practice of oral messaging and may have been built on a pre-existing infrastructure.

Assyria

The first credible claim for the development of a real postal system comes from Persia, but the point of invention remains in question. The best documented claim (Xenophon) attributes the invention to the Persian King Cyrus the Great (550 BC), while other writers credit his successor Darius I of Persia (521 BC) Other sources claim much earlier dates for an Assyrian postal system, with credit given to Hammurabi (1700 BC) and Sargon II (722 BC). Mail may not have been the primary mission of this postal service, however. The role of the system as an intelligence gathering apparatus is well documented, and the service was (later) called angariae, a term that in time turned to indicate a tax system. The Old Testament (Esther, VIII) makes mention of this system: Ahasuerus, king of Medes, used couriers for communicating his decisions.

China

The next credible claimant to the title of first postal system is China. Claims concerning the origins of this mail system also conflict somewhat, but it is clear that an organized postal infrastructure is put in place during Qin Dynasty (221 BC–207 BC) and that was substantially expanded during the subsequent Han Dynasty. The origins of a Chinese mail system may go back to the Zhou Dynasty (1122 BC–256 BC), when Confucius (551 BC–479 BC) says "news of deeds travels faster than the mail." It may also build on a pre-existing messaging infrastructure started by the Shang Dynasty. Whatever its point of origin, the Chinese Postal Service has clear title to the world's oldest continuously operating mail system. Today's Chinese mail system is continuous with one that was probably formalized under the Qin Dynasty.

Rome

The first well documented postal service is that of Rome. Organized at the time of Augustus Caesar (62 BC–AD 14), it may also be the first true mail service. The service was called cursus publicus, and was provided with light carriages called rhedæ with fast horses; additionally there was another, slower, service equipped with two-wheels carts (birolæ) pulled by oxen. This service was reserved to the government's correspondence; another service for citizens was later added. By the name of the stations in which mail was distributed and messengers' routes crossed, derives the Latin name of mail, Posta (originally posata or pausata = place of rest) because in these stations messengers used to rest during their voyages. The English term "mail" is instead supposed coming from the Teutonic name for the bag used by messengers.

Other systems

Another important postal service was created in the Islamic world by the caliph Mu'awiyya; the service was called barid, by the name of the towers that were built in order to protect the roads by which couriers travelled. Well before the Middle Ages and during them, homing pigeons were used, taking advantage of a singular quality of this bird, which when taken far from its nest is able to find his way home due to a particularly developed sense of orientation. Messages were then tied around the legs of the pigeon, which was freed and could reach his original nest. Mail has been transported by quite a few other methods throughout history, including dogsled, balloon, rocket, mule, pneumatic tubes and even submarine. Charlemagne extended to the whole territory of his empire the system used by Franks in northern Gaul, and connected this service with the service of missi dominici. Many religious orders had a private mail service, notably Cistercians' one connected more than 6,000 abbeys, monasteries and churches. The best organisation however was created by Teutonic Knights. The newly instituted universities too had their private services, starting from Bologna (1158). Popular illiteracy was accommodated through the service of scribes. Illiterates who needed to communicate dictated their messages to a scribe, another profession now quite generally disappeared. In 1505, Holy Roman Emperor Maximilian I established a postal system in the Empire, appointing Franz von Thurn und Taxis to run it. Von Thurn und Taxis's family, then known as Tassis, had operated postal services between Italian city states from 1290 onwards. Following the abolition of the Empire in 1806 the Thurn und Taxis postal system continued as a private organisation, continuing to exist into the postage stamp era before finally being absorbed into the postal system of the new German Empire after 1871. Study of the mails is also known as postal history.

Modern mail

Modern mail is usually organised by national services (that in recent times are increasingly being replaced by privately owned companies), reciprocally interconnected by international regulations (some of which still in their original 18th-century form, many others of which are set out by the Universal Postal Union), organisations and agreements.

Organization

Universal Postal Union and UPS compete with the United States Postal Service, particularly in package delivery. Different mailboxes are also provided for local and express service.]] The world-wide postal system comprising the individual national postal systems of the world's self-governing states is co-ordinated by the Universal Postal Union, which among other things sets international postage rates, defines standards for postage stamps and operates the system of International Reply Coupons. In many countries a system of codes has been created (they are called ZIP Codes in the United States and postal codes in most other countries), in order to facilitate the automation of operations. This also includes placing additional marks on the address portion of the letter or mailed object, called "bar coding." Bar coding of mail for delivery is usually expressed either by a series of vertical bars, usually called POSTNET coding, or a block of dots as a two-dimensional barcode. The "block of dots" method allows for the encoding of proof of payment of postage, exact routing for delivery, and other features. two-dimensional barcode The ordinary mail service was improved in the 20th century with the use of planes for a quicker delivery (air mail). The first scheduled airmail service took place between the London suburbs of Hendon and Windsor on 9 September 1911. Some methods of airmail proved ineffective, however, including the United States Postal Service's experiment with [http://www.usps.com/history/history/his2_75.htm#MISSILE guided missiles for international mail transport] (external link). Receipts services were made available in order to grant the sender a confirmation of effective delivery. Mail going to naval vessels is known as the Fleet Post Office.

Payment

Worldwide the most common method of prepaying postage is by buying an adhesive postage stamp to be stuck to the envelope before mailing; a much less common method is to use a postage-prepaid envelope. Franking is a method of creating postage-prepaid envelopes under licence using a special machine. They are used by companies with large mail programs such as banks and direct mail companies. In 1998, the U.S. Postal Service authorised the first tests of a secure system of sending digital franks via the Internet to be printed out on a PC printer, obviating the necessity to license a dedicated franking machine and allowing companies with smaller mail programs to make use of the option. The service provided by the U.S. Postal Service in 2003 allows the franks to be printed out on special adhesive-backed labels. In 2004 the Royal Mail in the United Kingdom introduced its SmartStamp Internet-based system, allowing printing on ordinary adhesive labels or envelopes. Similar systems are being considered by postal administrations right around the world. When the pre-paid envelope or package is accepted into the mail by an agent of the postal service, the agent usually indicates by means of a cancellation that it is no longer valid for pre-payment of postage. The exceptions are when the agent forgets or neglects to cancel the mailpiece, or for stamps that are pre-cancelled and thus do not require cancellation.

Rules and etiquette

Mail is quite generally protected by the secret of correspondence (secretus epistulae), meaning that no letter or other document can be read by other than the receiver (under U.S. law, this only applies to First Class Mail). This right is usually guaranteed by most national constitutions, such as the Mexican Constitution, and is alluded to in the European Convention of Human Rights.[http://www.echr.coe.int/Convention/webConvenENG.pdf] Usually, special procedures are required in case correspondence has to be, openly or discreetly, controlled by police. The operations of control of private citizens' mail is called censorship and concerns social, political and legal aspects of civil rights. While in most cases this censorship is exceptional, military censorship of mail, particularly of soldiers at the front, is routine and almost universally applied. In the United Kingdom, once the sender places a letter in a postbox or hands over a parcel to the Post Office to be delivered, they belong to, and are protected by The Crown, until handed over to the recipient. The use of mail is subject to common rules and a particular etiquette. After the discovery of new communicating systems and vehicles, mail lost most of its special charm in favour of more quickly connecting systems such as the telephone, and remained as a vehicle for commercial or formal documents. It is however still widely in use in more cultivated classes for personal communication; in particular, wedding invitations are customarily sent by mail.

Rise of electronic correspondence

Since the advent of e-mail, which is usually faster, the postal system has come to be referred to in Internet slang by the retronym "snail mail". Occasionally, the term "white mail" or "the PaperNet" has also been used as a neutral term for postal mail. In modern times, mainly in the 20th century, mail has found an evolution in vehicles using newer technologies to deliver the documents, especially through the telephone network; these new vehicles include telegram, telex, facsimile (fax), e-mail, short message service (SMS). There have been methods which have combined mail and some of these newer methods, such as INTELPOST, which combined facsimile transmission with overnight delivery. These vehicles commonly use a mechanical or electro-mechanical standardised writing (typing), that on the one hand makes for more efficient communication, while on the other hand makes impossible characteristics and practices that traditionally were in conventional mail, such as calligraphy. This epoch is undoubtedly mainly dominated by mechanical writing, with a general use of no more of half a dozen standard typographic fonts from standard keyboards. However, the increased use of typewritten or computer-printed letters for personal communication and the advent of e-mail, has sparked renewed interest in calligraphy, as a letter has become more of a "special event." Long before e-mail and computer-printed letters, however, decorated envelopes, rubber stamps and artistamps formed part of the medium of mail art.

Collecting

Postage stamps are also object of a particular form of collecting, and in some cases, when demand greatly exceeds supply, their commercial value on this specific market may become enormously greater than face value, even after use. For some postal services the sale of stamps to collectors who will never use them is a significant source of revenue for example postage stamps from Tokelau, South Georgia & South Sandwich Islands, Tristan da Cunha, Niuafo´ou and many others. Stamp collecting is commonly known as philately, although strictly the latter term refers to the study of stamps. Another form of collecting regards postcards, a document written on a single robust sheet of paper, usually decorated with photographic pictures or artistic drawings on one of the sides, and short messages on a small part of the other side, that also contained the space for the address. In strict philatelic usage, the postcard is to be distinguished from the postal card, which has a pre-printed postage on the card. The fact that this communication is visible by other than the receiver often causes the messages to be written in jargon. Letters are often studied as an example of literature, and also in biography in the case of a famous person. A portion of the New Testament of the Bible is composed of the Apostle Paul's epistles to Christian congregations in various parts of the Roman Empire. See below for a list of famous letters. A style of writing, called epistolary, tells a fictional story in the form of the correspondence between two or more characters. A make-shift mail method after stranding on a deserted island is a message in a bottle.

Deregulation

- see also: New Zealand Post Several countries, including Sweden (in 1991), New Zealand (1998 and 2003) and Argentina have opened up the postal services market to new entrants. In the case of New Zealand Post Limited, this included (from 2003) its right to be the sole New Zealand postal administration member of the Universal Postal Union, thus the ending of its monopoly on stamps bearing the name New Zealand.

Types of mail

Universal Postal Union

Letters

Letter-sized mail comprises the bulk of the contents sent through most postal services. These are usually documents printed on A4 (210×297 mm), Letter-sized (8.5×11 inches), or smaller paper and placed in envelopes. While many things are sent through the mail, interpersonal letters are often thought of first in reference to postal systems. Handwritten correspondence, while once a major means of communications between distant people, is now used less frequently due to the advent of more immediate means of communication, such as the telephone or e-mail. Traditional letters, however, are often considered to harken back to a "simpler time" and are still used when someone wishes to be deliberate and thoughtful about his or her communication. Bills and invoices are often sent through the mail, like regular billing correspondence from utility companies and other service providers. These letters often contain a self-addressed, envelope that allows the receiver to remit payment back to the company easily. While still very common, many people now opt to use online bill payment services, which eliminate the need to receive bills through the mail. Bulk mail, often called junk mail, are commercial solicitations sent by advertisers. The senders of these messages sometimes purchase lists of addresses (which are sometimes targeted towards certain demographics) and then send letters advertising their product or service to all recipients. Other times, commercial solicitations are sent by local companies advertising local products, like a restaurant delivery service advertising to their delivery area or a retail store sending their weekly advertising circular to a general area. Bulk mail is also often sent to companies' existing subscriber bases, advertising new products or services. Many other things are also sent as letters through postal services, like wedding invitations and bank statements.

Repositionable Notes

The United States Postal Service has recently permitted "repositionable notes" to be attached to the outside of envelopes.[http://www.usps.com/communications/news/press/2005/pr05_028.htm]

Postal cards and postcards

Postal cards and postcards are small message cards which are sent by mail unenveloped; the distinction often, though not invariably and reliably, drawn between them is that "postal cards" are issued by the postal authority or entity with the "postal indica" (or "stamp") preprinted on them, while postcards are privately issued and require affixing an adhesive stamp (though there have been some cases of a postal authority's issuing non-stamped postcards). Postcards are often printed today to promote tourism, with pictures of resorts, tourist attractions or humorous messages on the front and allowing for a short message from the sender to be written on the back. The postage required for postcards is generally less than postage required for standard letters, although the United States Postal Service has imposed a surcharge for the purchase of postal cards, over and above the required postage. Postcards are also used by magazines for new subscriptions. Inside many magazines are postage-paid subscription cards that a reader can fill out and mail back to the publishing company to be billed for a subscription to the magazine. In this fashion, magazines also use postcards for other purposes, including reader surveys, contests or information requests. Postcards are sometimes sent by charities to their members with a message to be signed and sent to a politician (e.g. to promote fair trade or third world debt cancellation). third world debt

Other

Larger envelopes are also sent through the mail. These are often made of sturdier material than standard envelopes and are often used by businesses to transport documents that are not to be folded or damaged, such as legal documents and contracts. Due to their size, larger envelopes are sometimes charged additional postage. Packages are often sent through some postal services, usually requiring additional postage than an average letter or postcard. Many postal services have limits on what can and cannot be sent inside packages, usually placing limits or bans on perishable, hazardous or flammable materials. Additionally, because of terrorism concerns, the U.S. Postal Service subjects their packages to various security tests, often scanning or x-raying packages for materials that might be found in mail bombs. Magazine subscriptions are also sent through postal services. Many magazines are simply placed in the mail normally (but in the U.S., they are printed with a special bar code that acts as pre-paid postage - see POSTNET) but many are now shipped in shrinkwrap to protect the loose contents of the magazine.

Famous letters

- Rainer Maria Rilke's Letters to a Young Poet
- Martin Luther King, Jr.'s Letter from Birmingham Jail
- The Pauline epistles
- Samantha Smith's letter to Yuri Andropov
- Virginia O'Hanlon's letter to the New York Sun, replied to in a famous editorial

List of national postal services

famous editorial
- An Post (Ireland)
- Australia Post
- Canada Post
- China Post, 中国邮政 (People's Republic of China)
- Chunghwa Post, 中華郵政 (Republic of China)
- Correos (Spain)
- Correios (Brazil)
- CTT (Portugal)
- Deutsche Post (Germany)
- De Post, La Poste, Die Post or The Post (Belgium)
- Hongkong Post (Hong Kong)
- Indian Postal Service
- Indonesian Post - Pos Indonesia
- Japan Post
- Jersey Post, (Jersey)
- La Poste (France)
- Magyar Posta (Hungary)
- New Zealand Post
- PhilPost-Philippine Postal Corporation (Philippines)
- Post Danmark (Denmark)
- Poste Italiane (Italy)
- Posten (Sweden)
- Poşta Română (Romania)
- Royal Mail (United Kingdom)
- Sociedad Estatal Correos y Telégrafos (Spain)
- Swiss Post (Switzerland)
- TPG Post, formerly PTT (The Netherlands)
- United States Postal Service

External links

- Potts, Albert, "[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=/netahtml/srchnum.htm&r=1&f=G&l=50&s1=19578.WKU.&OS=PN/19578&RS=PN/19578 US19578] (First U.S. street mailbox patent)". US patent office. 1858
- [http://www.ipfeurope.com International Pen Friends] Category:Postal system ja:郵便 ko:편지 th:%E0%B9%84%E0%B8%9B%E0%B8%A3%E0%B8%A9%E0%B8%93%E0%B8%B5%E0%B8%A2%E0%B9%8C

Office

:This article is about traditional meanings of the word office. For computer office applications suites, see List of office suites. :For the television program, see "The Office." An office is a room or other area in which people work, but may also denote a position within an organisation with specific duties attached to it (see officer, office-holder, official); the latter is in fact an earlier usage, office as place originally referring to the location of one's duty. When used as an adjective, the term office may refer to business-related tasks. In legal writing, a company or organization has offices in any place that it has an official presence, even if that presence consists of, for example, a storage silo rather than an office. An office is an architectural and design phenomenon and a social phenomenon, whether it is a tiny office such as a bench in the corner of a "Mom and Pop shop" of extremely small size (see SOHO) through entire floors of buildings up to and including massive buildings dedicated entirely to one company. In modern terms an office usually refers to the location where white-collar workers are employed during the day.
History of offices
white-collar worker
- The very word stems from the Latin officium (see that article), as its equivalents in various (mainly romance) languages. Interestingly, this was not necessarily a place, but rather an -often mobile- 'bureau' in the sense of a human staff or even the abstract notion of a formal position (such as a magistrature). Anyway, Rome can be considered the first society which, mainly because of the rule of law, developed a relatively elaborate bureaucracy, which would not be equaled for centuries in the West after the fall of Rome, even partially reverting to illiteracy, while the east preserved a more sophisticated administrative culture, both under Byzantium and under islam.
- Offices in classical antiquity were often part of a palace complex or a large temple. There was usually a room where scrolls were kept and scribes did their work. Ancient texts mentioning the work of scribes allude to the existence of such "offices". These rooms are sometimes called "libraries" by some archaeologists and the general press because one often associates scrolls with literature. In fact they were true offices since the scrolls were meant for record keeping and other management functions such as treaties and edicts, and not for writing or keeping poetry or other works of fiction.
- The medieval chancery was usually the place where most government letters were written and were laws were copied in the administration of a kingdom. The rooms of the chancery often had walls full of pigeonholes, constructed to hold rolled up pieces of parchment for safekeeping or ready reference (a precursor to the book shelf). The introduction of printing during the Renaissance did not change these early government offices much.
- Pre-industrial illustrations such as paintings or tapestries often show us personalities or eponyms in their private offices, handling record keeping books or writing on scrolls of parchment. All kinds of writings seemed to be mixed in these early forms of offices. Before the invention of the printing press and its distribution there was often a very thin line between a private office and a private library since books were read or written in the same space at the same desk or table, and general accounting and personal or private letters were also done there.
Space arrangement in offices
There are many different ways of arranging the space in an office and whilst these vary according to function, managerial fashions and the culture of specific companies can be even more important. Choices include, how many people will work within the same room. At one extreme, each individual worker will have their own room; at the other extreme a large open plan office can be made up of one main room with tens or hundreds of people working in the same space. Open plan offices which put multiple workers together in the same space and some studies in particular areas have shown that they give short term productivity, for example within a single software project. At the same time the loss of privacy and security can increase the incidence of theft and loss of company secrets. A type of compromise between open plan and individual rooms is provided by the cubicle, possibly made most famous by the Dilbert cartoon series, which solves visual privacy to some extent, but often fails on acoustic separation and security.
Office buildings
While offices can be built in almost any location in almost any building, some modern requirements for offices make this more difficult. These requirements can be both legal (light levels must be sufficient, for example) or technical (requirements for networking). Along side such other requirements such as security and flexibility of layout, this has led to the creation of special buildings which are dedicated only or primarily for use as offices. An office building (also called an office block) is a form of commercial building which contains spaces mainly designed to used for offices. The primary purpose of an office building is to provide a workplace and working environment primarily for administrative and managerial workers. These workers usually occupy set areas within the office building, and usually are provided with desks, PC's and other equipment they may need within these areas. An office building will be divided into sections for different companies or may be dedicated to one company. In either case, each company will typically have a reception area, one or several meeting rooms, singular or open-plan offices, as well as toilets. Many office buildings also have kitchen facilities and a staff room, where workers can have lunch or take a short break.
Standard facilities in modern office buildings

- water
- electricity (distribution through entire office space with many separate points)
- private branch exchange
- optical connections to local telecommunications providers
- parking (often underground under the office)
- structured cabling (category 5 or better) for internal networking and telecommunications
Smoking in office buildings
Gradually, smoking is becoming restricted within large offices and other work spaces in most countries. Sometimes smoking is allowed in this case but is confined to an area clearly defined as a smoking room. Depending on the culture and the business occupying the building, smokers may not be allowed to smoke inside the building at all. In the case of an office buildings this can lead to a large interconnected area where smoking is disallowed. In this case, smokers are forced to either forego smoking during the day or, more commonly, to leave the buildings for short periods of time. Depending on the climate of the surrounding area and the particular weather on that day, this may be an unpleasant experience. In some cases smokers may have some form of shelter outside the building to use when they want a cigarette.
See also

- Factory
- Warehouse
- Business park
- Sick building syndrome
- Office supplies
- Office manager
- Class A office space
References

- Adams, Scott. What do you call a sociopath in a cubicle? : (answer, a coworker) Kansas City, Missouri. : Andrews McMeel Pub., 2002.
- Duffy, Francis. Colin Cave. John Worthington, editors. Planning Office Space. London: The Architectural Press Ltd., 1976.
- Klein, Judy Graf. The Office Book. New York: Facts on File Inc., 1982. Category:Buildings and structures Category:Rooms Category:Office work ja:オフィス

City

:For alternate meanings see city (disambiguation) A city is an urban area that is differentiated from a town, village, or hamlet by size, population density, importance, or legal status.

Introduction

In most parts of the world, cities are generally substantial and nearly always have an urban core, but in the United States many incorporated areas which have a very modest population, or a suburban or even mostly rural character, are designated as cities. City can also be a synonym for "downtown" or a "city centre". A city usually consists of residential, industrial and business areas together with administrative functions which may relate to a wider geographical area. A large share of a city's area is primarily taken up by housing, which is then supported by infrastructure such roads, streets and often public transport routes such as a subway or a metro rail system. Lakes and rivers may be the only undeveloped areas within the city. The study of cities is covered extensively in human geography. "The city is a human habitat that allows people to form relations with others at various levels of intimacy while remaining entirely anonymous." (This definition was the subject of an exhibition at the Israeli pavilion at the 2000 Venice Biennale of architecture)

The difference between towns and cities

The difference between towns and cities is differently understood in different parts of the English speaking world. There is no one standard international definition of a city: the term may be used either for a town possessing city status; for an urban locality exceeding an arbitrary population size; for a town dominating other towns with particular regional economic or administrative significance. Although city can refer to an agglomeration including suburban and satellite areas, the term is not appropriate for a conurbation (cluster) of distinct urban places, nor for a wider metropolitan area including more than one city, each acting as a focus for parts of the area. In the United Kingdom, a city is a town which has been known as a city since time immemorial, or which has received city status by royal charter — which is normally granted on the basis of size, importance or royal connection (traditional pointers have been whether the town has a cathedral or a university). Some cathedral cities, for example St. David's in Wales, are quite small, and may not be known as cities in common parlance. (See the City status in the United Kingdom.) A similar system existed in the medieval Low Countries where a landlord would grant settlements certain privileges (city rights) that settlements without city rights didn't have. This include the privilege to put up city walls, hold markets or set up a judicial court. In Australia and New Zealand, city is used to refer both to units of local government, and as a synonym for urban area. For instance the [http://www.southperth.wa.gov.au City of South Perth] is part of the urban area known as Perth, commonly described as a city. On the other hand, Gisborne in New Zealand is known as the first city to see the sun, despite being administered by a district council, not a city council. An interesting phenomenon in American English is the generalisation of the term city to all settlements. Britons may be bemused by forms with fields headed, not Town and Postal code, but City and ZIP, even though the person needing to fill it in could be living in a city, a town without city status, or even a village or hamlet. In turn, many Americans often talk of "City Halls" when referring to town halls in quite small European towns and villages. Strangely, even though Americans are well aware that "village" means something smaller than a town, the word has often been co-opted by enterprising developers to make their projects sound welcoming and friendly. The result are so-called villages with 20 and 30-story high-rises, like Westwood Village in Los Angeles.

Geography

Westwood Village, of around 1550. The city is completely surrounded by a city wall and defensive canal. The square shape is inspired by Jerusalem.]] The geographies of cities, both physical and human, are diverse. Often cities will either be coastal and have a harbour or be situated near a river giving economic advantage. Water transports on rivers and oceans were (and in most cases still are) cheaper and more efficient than road transport over long distances. Older European cities often have historically intact central areas where the streets are jumbled together, seemingly without a structural plan. This quality is a legacy of earlier unplanned or organic development, and is often perceived by today's tourists to be picturesque. Modern city planning has seen many different schemes for how a city should look. The most commonly seen pattern is the grid, almost a rule in parts of the United States, and used for thousands of years in China. Derry was the first ever planned city in Ireland, begun in 1613, with the walls being completed 5 years later in 1618. The central diamond within a walled city with four gates was thought to be a good design for defence. The grid pattern chosen was subsequently much copied in the colonies of British North America [http://worldfacts.us/UK-Londonderry.htm]. However, the grid has been used for a long time in history. The Greeks gave their colonies around the Mediterranian often with a grid. One of the best examples around is the city of Priene. This city even had it's different districts. Much like modern city planning today. Also in de Medival times we see a preference for lineair planning. Good examples are the cities establish in the south of France by various rulers. And city expantions in old Dutch and Flanders cities. Other forms may include a radial structure in which main roads converge on a central point, often the effect of successive growth over long time with concentric traces of town walls and citadels - recently supplemented by ring-roads that take traffic around the edge of a town. Many Dutch cities are structured that way: a central square surrounded by a concentric canals. Every city expansion would imply a new circle (canals + town walls). In cities like Amsterdam and Haarlem this pattern is still clearly visible.

History of cities

Towns and cities have a long history, although opinions vary on whether any particular ancient settlement can be considered to be a city. The first true towns are sometimes considered to be large settlements where the inhabitants were no longer simply farmers of the surrounding area, but began to take on specialized occupations, and where to trade, food storage and power was centralized. Societies that live in cities are often called civilizations. By this definition, the first towns we know of were located in Mesopotamia, such as Ur, and along the Nile, the Indus Valley Civilization and China. Before this time it was rare for settlements to reach significant size, although there were exceptions such as Jericho, Çatalhöyük and Mehrgarh. The growth of ancient and medieval empires led to ever greater capital cities and seats of provincial administration, with ancient Rome, its eastern successor Constantinople and successive Chinese and later Indian capitals approaching or exceeding the half-million population level. It is estimated that ancient Rome population exceeded one million people by the end of the last century BCE, which is considered the only city to reach that number until the Industrial Revolution, however, Alexandria population was close to one million at the same time. Similar large administrative, commercial, industrial and ceremonial centres emerged in other areas, though on a smaller scale. During the European Middle Ages, a town was as much a political entity as a collection of houses. City residence brought freedom from customary rural obligations to lord and community: "Stadtluft macht frei" ("City air makes you free") was a saying in Germany. In Continental Europe cities with a legislature of their own wasn't unheard of, the laws for towns as a rule other than for the countryside, the lord of a town often being another than for surrounding land. In the Holy Roman Empire (i.e. medieval Germany and Italy) some cities had no other lord than the emperor. In exceptional cases like Venice, Genoa or Lübeck, cities themselves became powerful states, sometimes taking surrounding areas under their control or establishing extensive maritime empires. Similar phenomena existed elsewhere, as in the case of Sakai, which enjoyed a considerable autonomy in late medieval Japan. Most towns remained far smaller places, so that in 1500 only some two dozen places in the world contained more than 100,000 inhabitants: as late as 1700 there were fewer than forty, a figure which would rise thereafter to 300 in 1900. A small city of the early modern period might contain as few as 10,000 inhabitants, a town far fewer still. While the city-states, or poleis, of the Mediterranean and Baltic Sea languished from the 16th century, Europe's larger capitals benefited from the growth of commerce following the emergence of an Atlantic economy fuelled by the silver of Peru. By the 18th century, London and Paris rivalled the well-developed regionally-traditional capital cities of Baghdad, Beijing, Istanbul, Kyoto and Venice. The growth of modern industry from the late 18th century onward led to massive urbanization and the rise of new great cities, first in Europe and then in other regions, as new opportunities brought huge numbers of migrants from rural communities into urban areas. In the Great Depression of the 1930s cities were hard hit by unemployment, especially those with a base in heavy industry. Today the world's population is about half urban, with millions still streaming annually into the growing cities of Asia, Africa and Latin America.

Modern conceptions

Traditional approach

A universal linear approach to cities has been in place and accepted for a long time. As this approach falls short of explaining a number of aspects of city life, such as the diversity between cities, new ways have been sought. Influenced by post-structuralist thinking a new approach was born: using spatial thinking it is possible to not only fill the gaps, but indeed replace the old completely. Three characteristics have been identified as defining a city: the number of people to area (density), the networks of the city, as well as a particular way of life. None of these characteristics alone is enough to make a place a city. Until recently cities were almost exclusively viewed as part of a single, linear line of development. Starting with the Greek city-state, this linear approach placed each city somewhere, and it was believed that it was only a matter of time until the next stage along the prescript path of advancement was reached. For each stage an exemplar was identified. Step by step from Athens onwards to Venice and London, Los Angeles seemed to be the ultimate stage of a postmodern city. Such an approach regarded a city as a single static entity, which could be studied disconnected in time and space. This leads to a theoretical framework with little connection to real cities, but these were simply seen as less clear examples. In spite of apparent shortcomings, this approach is still very commonplace in respected and popular publications.

Shortcomings

Despite its wide acceptance this traditional approach to cities had serious shortcomings. Firstly, leaving the latest stage aside, it was completely eurocentric. It was believed that every city in the world could be compared with a past stage in the history of one European city. Secondly, there was no real explanation when and how changes occurred, how another stage in the line of development was achieved. There seemed no need to follow the changes of one city, but instead attention was turned to another exemplar. Thirdly, the disconnected view of cities is problematic. It implies that history, culture and connections of a place do not influence a place, which is questionable. Some thinkers argue that a history ignoring connections is necessary incomplete. Fourthly, the traditional approach failed to define what makes a city. It is unclear why one place is regarded as a city while another one is not. Lewis Mumford argued in 1937 for a social dimension, describing cities as geographical plexuses. Finally, viewing cities as a single body misses modern conceptions that there is more than one story to a place. The city of an aristocrat will surely differ from that of a slave. This also reflects a shift away from one single history of the powerful élites (often referred to as city élites) to a multidimensional perception of history. The notion of city rhythms has been introduced to highlight the different aspects of city life... The term city can be used to mean either an area of contiguous urbanization or a particular municipality (an [http://www.demographia.com/db-world-muni.htm area within the political borders of an incorporated municipality]). There is a substantial variation in municipalities around the world. The largest municipality, Chongqing, is approximately the same size as the state of Indiana and contains much more rural territory than continuous urbanization. In most cases, however, the continuous urbanization popularly thought of as the city extends well beyond the boundaries of the core incorporated city.

Modern approach

As a modern approach to cities, urban thinking analyzes various issues that arise in urban areas. It focuses largely upon connections and internal divisions which helps create a better understanding of the dynamics of cities. Using such spatial thinking, it is possible to understand various aspects for which the traditional approach did not provide an adequate explanation. One important aspect of spatial thinking is looking at the connections of a city. Such connections allow one to understand the unique character of a place. Rather than treating all cities the same, places are seen as interconnected through networks of culture, economics, trade or history. So while London and Tokyo are economically linked through stock markets, Graz and Stockholm are linked via the Cultural Capital of Europe. These networks overlap and are concentrated in cities. Arguably this concentration of networks creates a unique feeling of a place. Such networks, however, do not only link cities with cities, but also a city to its surroundings. The notion of a city footprint reflects the idea that a city on its own is not sustainable: it depends on produce from its surroundings, it needs trade links and other connections for economic viability. Looking at networks, it becomes possible to explain the rise and fall of cities. This has to do with the changing importance of connections and is maybe best illustrated with the arrival of Spanish colonizers in America. Within a short time, connections to Madrid became more important than connections to the former centre Tenochtitlán. The concentration of networks in cities can be used as an explanation of urbanization. It is the access to certain networks that attracts people. As various networks spatially run together in a confined area, people gather in cities. At the same time, this concentration of people means the introduction of new networks, such as social links, increasing the creation of new possibilities within cities. Urban social movements are a direct result of this possibility of making new connections. It is this openness to new connections that makes cities both attractive and to a certain degree unpredictable. Another important aspect of modern urban thinking is looking at the divisions within a city. This internal differentiation is linked to the external connections of a city. As places of meeting histories, cities are hybrid and heterogeneous. Hybrid they are as the connections which link places are bilateral, involving giving and taking in both directions. Heterogeneous they are because of the dynamism of cities. New encounters are ongoing processes where social relations and differences are constantly negotiated and shaped, reflecting the unequal power involved. Neither the internal differentiations nor the connections and networks of a place on their own define a city. Internal divisions are caused by external links, while at the same time connections to the outside open up the possibility of new social divisions. Divisions and connections in every city are intertwined, and only by considering both aspects of spatial thinking the complexity of cities is approachable. Immigration illustrates this interconnection of external networks and internal divisions well. The networks concentrated in the core of the city attract immigrants. As they immigrate, the newcomers bring along their histories, bringing new networks or enforcing existing ones. At the same time, their history offers opportunities to identify with or likewise exclude. Division and connection come hand in hand. Rather than attempting to eradicate such tensions and contradictions in the theoretical framework, modern urban thinking – influenced by poststructuralist thought – accounts for both sides. Static universal bodies are replaced by multidimensional networks, allowing for fluidity and dynamism.

Global cities

A global city, also known as a world city, is a prominent centre of trade, banking, finance, innovations, and markets. The term "global city", as opposed to megacity, was coined by Saskia Sassen in a seminal 1991 work. Whereas "megacity" refers to any city of enormous size, a global city is one of enormous power or influence. Global cities, according to Sassen, have more in common with each other than with other cities in their host nations. Bangkok, Beijing, Brussels, Chicago, Hong Kong, Johannesburg, London, Moscow, Mumbai, New York, Los Angeles, Paris, São Paulo, Seoul, Shanghai, Singapore, Sydney, Tokyo, and Toronto are commonly referred to as global cities, however, the term is also applied to other cities. The notion of global cities regards the power of cities as contained within cities. The city is seen as a container where skills and resources are concentrated. The more successful city is able to concentrate more of these skills and resources. This makes the city itself more powerful in terms that it can influence what is happening around the world. Following this view of cities, it is possible to rank the world's cities hierarchically (John Friedmann and Goetz Wolff, "World City Formation: An Agenda for Research and Action," International Journal of Urban and Regional Research 6, no. 3 (1982): 319.). Critics of the notion point out to the different realms of power. The term global city narrowly focuses on economics. Cities like Rome are powerful in religious terms. Additionally, it has been questioned whether the city itself can be regarded as an actor. In 1995 Kanter argued that successful cities can be identified by three elements. To be successful, a city needs to have good thinkers (concepts), good makers (competence) or good traders (connections). The interplay of these three elements, Kanter argued, means that good cities are not planned but managed.

Environmental effects

Modern cities are known for creating their own microclimates. This is due to the large clustering of hard surfaces that heat up in sunlight and that channel rainwater into underground ducts. As a result, city weather is often windier and cloudier than the weather in the surrounding countryside. Conversely, because these effects make cities warmer (urban heat shield or urban heat islands) than the surrounding area, tornadoes tend to go around cities. Additionally towns can cause significant downstream weather effects. Garbage and sewage are two major problems for cities, as is air pollution coming from internal combustion engines (see public transport). The impact of cities on places elsewhere, be it hinterlands or places far away, is considered in the notion of city footprinting (ecological footprint).

Inner city

Main article: Inner city In the United States, United Kingdom and Republic of Ireland, the term "inner city" is sometimes used with the connotation of being an area, perhaps a ghetto, where people are less educated and wealthy and where there is more crime. These connotations are less common in other Western countries, as deprived areas are located in varying parts of other Western cities. In fact, with the gentrification of some formerly run-down central city areas the reverse connotation can apply - in Australia the term "outer suburban" applied to a person implies a lack of sophistication. For instance, in Paris the inner city is the richest part of the metropolitan area, where housing is the most expensive, and where elites and high-income individuals dwell. The United States, in particular, suffers from a culture of anti-urbanism that some say dates back as far as Thomas Jefferson who wrote that "The mobs of great cities add just so much to the support of pure government as sores do to the strength of the human body." On the businessmen who brought manufacturing industry into cities and hence increased the population density necessary to supply the workforce, he wrote "the manufactures of the great cities... have begotten a depravity of morals, a dependence and corruption, which renders them an undesirable accession to a country whose morals are sound." Modern anti-urban attitudes are to be found in America in the form of a planning profession that continues to develop land on a low-density suburban basis, where access to amenities, work and shopping is provided almost exclusively by car rather than on foot. However, there is a growing movement in North America called "New Urbanism" that calls for a return to traditional city planning methods where mixed-use zoning allows people to walk from one type of land-use to another. The idea is that housing, shopping, office space, and leisure facilities are all provided within walking distance of each other, thus reducing the demand for road-space and also improving the efficiency and effectiveness of mass transit.

References

- Toynbee, Arnold (ed), Cities of Destiny, New York: McGraw-Hill, 1967. Pan historical/geographical essays, many images. Starts with "Athens", ends with "The Coming World City-Ecumenopolis".

External links

- [http://www.populationdata.net/palmaresvilles.html All 1M+ major urban areas]
- [http://www.p.lodz.pl/I35/personal/jw37/EUROPE/europe.html Place Names of Europe]
- [http://www.tageo.com/index.htm Place Names of the world - Index of 2M cities]
- [http://www.nationmaster.com/graph-T/geo_lar_cit&int=-1&b_ac=1 Most populous city of each country]
- [http://www.world-gazetteer.com/st/statb.htm For all countries, number of cities per size category]
- [http://www.nationmaster.com/graph-T/geo_lar_cit_pop_cap&int=-1 For each country, part of its population that lives in its most populous city] (with some odd figures due to the comparison of data of different years)
- [http://www.nlc.org/nlc_org/site/ The National League of Cities] (United States)
- [http://www.innercitypress.org Inner City Press] (Weekly publication on cities, United States)
- [http://etext.lib.virginia.edu/cgi-local/DHI/dhi.cgi?id=dv1-52 Dictionary of the History of ideas:] The City
- [http://www.morganquitno.com/cit05list.htm Morgan Quinto's 11th Annual America's Safest (and Most Dangerous) Cities]
- [http://www.skyscraperpage.com A friendly website designed by skyscraper enthusiasts featuring diagrams and descriptions of the buildings of cities around the world.]
- [http://www.bifurcaciones.cl bifurcaciones.cl, urban cultural studies journal]
- [http://worldheritage-forum.net/de/ Worldheritage-Forum] Weblog and Informationen on UNESCO World Heritage topics (with focus on cities) Category:Urban studies and planning Category:Cities ja:都市 ja:市 nb:By simple:city th:เมือง

Bicycle

tubing and carbon fiber stays and forks. It sports a drop handlebar and thin tires and wheels for efficiency and aerodynamics]] carbon fiber A bicycle, or bike, is a pedal-driven land vehicle with two wheels attached to a frame, one behind the other. First introduced in 19th-century Europe, bicycles evolved quickly into their familiar, current design. Numbering over 1,000,000,000 in the world today, bicycles provide the principal means of transportation in many regions and a popular form of recreation and transport in others. The bicycle has affected history considerably in both the cultural and industrial realms. In its early years, bicycle construction drew on pre-existing technologies; more recently, bicycle technology has contributed, in turn, to other, newer areas. Beyond recreation and transportation, bicycles have been adapted for use in many occupations, including the military, local policing, courier services, and sports. A recurrent theme in bicycling has been the tension between bicyclists and drivers of motor vehicles, each group of whom argues for its fair share of the world's roadways. According to members of Critical Mass, a bicycle activist group, "We aren't blocking traffic, we are traffic!"

History

No single time or person can be identified with the invention of the bicycle. Its earliest known forebears were called velocipedes, and included many types of human-powered vehicles. One of these, the scooter-like dandy horse, of the French Comte de Sivrac, dating to 1790, was long cited as the earliest bicycle. Most bicycle historians now believe that these hobby-horses with no steering mechanism probably never existed, but were instead made up by Louis Baudry de Saunier, a 19th-century French bicycle historian. Louis Baudry de Saunier The most likely originator of the bicycle is German Baron Karl von Drais, who rode his 1816 machine while collecting taxes from his tenants. He patented his draisine, a number of which still exist, including one at the Paleis het Loo museum in Apeldoorn, the Netherlands. These were pushbikes, powered by the action of the rider's feet pushing against the ground. Scottish blacksmith Kirkpatrick MacMillan shares creative credit with von Drais for adding a treadle drive mechanism, in 1840, that enabled the rider to lift his feet off the ground while driving the rear wheel. However, some reports describe MacMillan's vehicle as more of a "quadricycle". In the 1850s and 1860s, Frenchman Ernest Michaux and his pupil Pierre Lallement took bicycle design in a different direction, placing pedals on an enlarged front wheel. Their creation, which came to be called the "Boneshaker", featured a heavy steel frame on which they mounted wooden wheels with iron tires. Lallement emigrated to America, where he recorded a patent on his bicycle in 1866. The Boneshaker was further refined by James Starley in the 1870s. He mounted the seat more squarely over the pedals, so that the rider could push more firmly, and further enlarged the front wheel to increase the potential for speed. With tires of solid rubber, his machine became known as the ordinary. British cyclists likened the disparity in size of the two wheels to their coinage, nicknaming it the penny-farthing. The primitive bicycles of this generation were difficult to ride, and the high seat and poor weight distribution made for dangerous falls. The subsequent dwarf ordinary addressed some of these faults, by adding some kind of gearing, reducing the front wheel diameter and setting the seat further back with no loss of speed. However, having to both pedal and steer via the front wheel remained a problem. Starley's nephew, J. K. Starley, J. H. Lawson, and Shergold solved this problem by introducing the chain and producing rear-wheel drive. These models were known as dwarf safeties, or safety bicycles, for their lower seat height and better weight distribution. Starley's 1885 Rover is usually described as the first recognizably modern bicycle. Soon the seat tube was added, creating the double-triangle, diamond frame of the modern bike. 1885 While the Starley design was much safer, the return to smaller wheels made for a bumpy ride. The next innovations increased comfort and ushered in the 1890s Golden Age of Bicycles. In 1888 Scotsman John Boyd Dunlop introduced the pneumatic tire, which soon became universal. Shortly thereafter the rear freewheel was developed, enabling the rider to coast without the pedals spinning out of control. This refinement led to the 1898 invention of coaster brakes. Derailleur gears and hand-operated, cable-pull brakes were also developed during these years, but were only slowly adopted by casual riders. By the turn of the century, bicycling clubs flourished on both sides of the Atlantic, and touring and racing were soon the rage. Successful early bicycle manufacturers included Englishman Frank Bowden and German builder Ignaz Schwinn. Bowden started the Raleigh company in Nottingham in the 1890s, and soon was producing some 30,000 bicycles a year. Schwinn emigrated to the United States, where he founded his similarly successful company in Chicago in 1895. Schwinn bicycles soon featured widened tires and spring-cushioned, padded seats, sacrificing some efficiency for increased comfort. Facilitated by connections between European nations and their overseas colonies, European-style bicycles were soon available worldwide. By the mid-20th century bicycles had become the primary means of transportation for millions of people around the globe. 20th century In many western countries the use of bicycles levelled off or declined, as motorized transportation became affordable and car-centred policies led to an increasingly hostile road environment for bicycles. In North America, bicycle sales declined markedly after 1905, to the point where by the 1940s, they had largely been relegated to the role of children's toys. In other parts of the world however, such as China, India, and European countries such as Germany, Denmark, and the Netherlands, the traditional utility bicycle remained a mainstay of transportation, its design only gradually changing to incorporate hand-operated brakes and internal hub gears allowing up to seven speeds. In the Netherlands, old style bicycles so-called 'granny bikes', have remained very popular and are again being produced now the original supply is turning to rust. Especially Amsterdam granny bikes are

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Bicycle

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