Thursday, January 31, 2008

Poetry

Poetry (from the Greek ποίησις", poiesis, a "making" or "creating") is a form of art in which language is used for its artistic and reminiscent qualities in addition to, or in lieu of, its supposed meaning. Poetry may be written independently, as discrete poems, or may occur in conjunction with other arts, as in poetic drama, hymns or lyrics.

Poetry, and discussions of it, have a long history. Early attempts to define poetry, such as Aristotle's Poetics, focused on the uses of speech in speechifying, drama, song and comedy. Later attempts concentrated on features such as recurrence and rhyme, and emphasised the aesthetics which distinguish poetry from style. From the mid-20th century, poetry has sometimes been more loosely defined as a fundamental artistic act using language.

Poetry often uses particular forms and conventions to develop the literal meaning of the words, or to evoke emotional or sensual responses. Devices such as assonance, alliteration, onomatopoeia and rhythm are sometimes used to achieve musical or incantatory effects. Poetry's use of indistinctness, symbolism, irony and other stylistic elements of poetic delivery often leaves a poem open to multiple interpretations. Similarly, metaphor and simile create a resonance between otherwise disparate images—a layering of meanings, forming connections previously not perceived. Kindred forms of resonance may exist, between individual verses, in their patterns of rhyme or rhythm.

Some forms of poetry are specific to particular cultures and genres, responding to the characteristics of the language in which the poet writes. While readers adapted to identifying poetry with Dante, Goethe, Mickiewicz and Rumi may think of it as being written in rhyming lines and regular meter, there are society, such as those of Du Fu and Beowulf, that use other approaches to achieve rhythm and euphony. In today's globalized world, poets often borrow styles, techniques and forms from diverse cultures and languages

Thursday, January 24, 2008

Inductor

An inductor is a passive electrical device working in electrical circuits for its property of inductance. Inductance is an consequence which results from the magnetic field that forms around a current carrying conductor. Electrical current through the conductor creates a magnetic flux relative to the current. A change in this current creates a change in magnetic flux that, in turn, generates an electromotive force that acts to oppose this change in current. Inductance is a calculate of the generated emf for a unit modify in current. An inductor with an inductance of 1 henry produces an emf of 1 V when the current through the inductor changes at the rate of 1 ampere per second. The number of turns, the area of each loop/turn, and what it is wrapped around influence the inductance.

An inductor opposes changes in the current. An ideal inductor would offer no resistance to a constant direct current, however, only superconducting inductors have truly zero electrical resistance. Inductors are used expansively in analog circuits and signal processing.

Thursday, January 10, 2008

Coconut

The coconut palm is grown throughout the tropical world, for decoration as well as for its many cooking and non-culinary uses, virtually every part of the coconut palm has some human use.The flowers of the coconut palm are polygamomonoecious, with both male and female flowers in the similar inflorescence. Flowering occurs continuously, with female plants producing seeds. Coconut palms are believed to be largely cross-pollinated, although some dwarf varieties are self-pollinating. Coconut water can be used as an intravenous fluid.

Nearly all parts of the coconut palm are useful, and the palms have a comparatively high yield, it therefore has important economic value. The name for the coconut palm in Sanskrit is kalpa vriksha, which translates as the tree which provides all the requirements of life. In Malay, the coconut is known as pokok seribu guna, the tree of a thousand uses. In the Philippines, the coconut is generally given the title Tree of Life. The white, fleshy part of the seed is safe to eat and used fresh or dried in cooking.

Thursday, December 20, 2007

River

A river is a natural waterway that transits water through a setting from higher to lower elevations. A river may have its basis in a spring, lake, from damp, boggy landscapes where the soil is waterlogged, from glacial melt, or from surface runoff of precipitation. Almost each and every one river is joined by other rivers and streams termed tributaries the highest of which are known as headwaters. Water may also begin from groundwater sources. Throughout the course of the river, the total volume transported downstream will often be a combination of the free water flow together with a important contribution flowing through sub-surface rocks and gravels that underlie the river and its floodplain. For many rivers in large valleys, this unseen component of flow may greatly go above the visible flow.

From their source, all rivers flow downhill, typically terminating in the sea or in a lake, through a confluence. In arid areas rivers sometimes end by losing water to desertion. River water may also infiltrate into the soil or pervious rock, where it becomes groundwater. Excessive abstraction of water for use in commerce, irrigation, etc., can also cause a river to dry before success its natural terminus.

Friday, December 14, 2007

Human interrelationship

Although humans currently comprise only about one-half of one percent of the total living biomass on Earth, the human effect on nature is disproportionately large. Because of the extent of human influence, the boundaries between what we regard as nature and "made environments" is not clear cut except at the extremes. Even at the extremes, the amount of natural environment that is free of discernible human influence is presently diminishing at an increasingly rapid pace, or, according to some, has already disappeared.

The development of technology by the human race has allowed the greater exploitation of natural resources and has helped to alleviate some of the risk from natural hazards. In spite of this progress, however, the fate of human civilization remains closely linked to changes in the environment. There exists a highly complex feedback-loop between the use of advanced technology and changes to the environment that are only slowly becoming understood. Manmade threats to the Earth's natural environment include pollution, deforestation, and disasters such as oil spills. Humans have contributed to the extinction of many plants and animals.

Wednesday, November 28, 2007

Market

A market is a social arrangement that allows buyers and sellers to discover in sequence and carry out a voluntary replace of goods or services. It is one of the two key institutions that organize trade, along with the right to own goods. In everyday usage, the word market may refer to the place where goods are traded, sometimes known as a marketplace, or to a street market.

In economics a financial market is a device that allows people to easily buy and sell financial securities, commodities, and other fungible substance of value at low transaction costs and at prices that reflect capable markets. A stock market is a market for the trading of company stock, and derivatives of same; both of these are securities scheduled on a stock replace as well as those only traded privately.

Tuesday, November 20, 2007

Ethnic diversity

The Affirmative action can be defined as action taken to compensate for past unfairness in the education of minorities. The present system of affirmative action allows universities to admit applicants from certain ethnic and minority groups with lower credentials. The main aim of affirmative action is to produce a diverse campus population that is comparable to today's society. The use of race as a main factor by which someone is admitted to college in the long run will compromise the quality of the university. By Implicating affirmative action to solve the problem of diversity on today's campuses has lead to the creation of problems.

The discrimination which is against Caucasian and Asian American students a long with the toleration of lower quality work produced by African American students and other minority students is an example of the problems caused by the Affirmative Action. Though the affirmative action intends to do good, which lowers the standards by which certain racial groups are admitted to college is not the way to solve the problem of diversity in America's universities. The present condition of America's public schools is directly responsible for the poor academic achievement of minority children.

Monday, October 29, 2007

Amusement park

Amusement park is the general word for a collection of rides and other leisure attractions assembled for the purpose of enjoyable a reasonably large group of people. An amusement park is more involved than a simple city park or playground, as an amusement park is intended to cater to adults, teenagers, and small children. An amusement park may be stable or temporary, generally periodic, such as a few days or weeks per year. The short-term amusement park with mobile rides etc. is called a funfair or carnival.

Theme parks form a more closely defined type of an amusement park. They are permanent conveniences that use architecture, signage, landscaping to help express the feeling that people are in a different place or time. Often a theme park will have a variety of 'lands' of the park committed to telling a particular story. Otherwise, an amusement park often has rides with tiny in terms of theming design elements. The main difference among a theme park and an amusement park is to in a theme park all the rides go all with the theme of the park, for example Disney World.

Friday, October 19, 2007

Computer file

A computer file is a block of subjective information, or resource for storing information, that is available to a computer program and is usually based on some kind of durable storage. A file is durable in the intelligence that it remains available for programs to use after the current program has finished. Computer files can be considered as the up to date counterpart of paper documents which traditionally were kept in offices and libraries files.
In most computer files are stored on various type of data storage device, there is a hard disk, from which most operating systems run and on which most store their files. Hard discs are the most ever-present form of non-volatile storage at the start of the 21st century. Where files have only temporary information, they may be stored in RAM. The way a computer organizes, names stores and manipulates files is worldwide referred to as its file system. Nearly all computers have at least one file system.

Wednesday, October 10, 2007

FLAG

A FLAG is a piece of woven cloth, often flown from a pole or mast, generally used symbolically for signalling or recognition. The term FLAG is also used to refer to the graphic intend employed by a flag, or to its picture in another medium.
The first flags were used to assist military organization on battlefields and flags have evolved into a general tool for rudimentary signalling and identification, mainly in environments where communication is similarly challenging such as the maritime environment where semaphore is used. National flags are potent patriotic symbols with varied wide-ranging interpretation, often including strong military associations due to their unique and ongoing military uses. Flags are used in messaging, advertising, or for other decorative purpose, though at this less formal end the difference between a flag and a simple cloth banner is blurred. The study of flags is known as vexillology, from the Latin ''vexillum'' meaning flag or poster.

Friday, September 21, 2007

Intranet

An intranet is a private computer network that uses Internet protocols, network connectivity to securely divide part of an organization's information or operations with its employees. Sometimes the term refers only to the most perceptible service, the internal website. The same concepts and technologies of the Internet such as clients and servers running on the Internet protocol suite are used to make an intranet. HTTP and other Internet protocols are commonly used as well, such as FTP. There is often a challenge to use Internet technologies to provide new interfaces with corporate legacy data and information systems.
Intranets can help users to locate and view information faster and use applications related to their roles and responsibilities. With the help of a web browser interface such as Internet Explorer or Firefox, users can contact data held in any database the organization wants to make available, anytime and - subject to security provisions - from anywhere within the company workstations, increasing employees' capability to perform their jobs faster, more accurately, and with confidence that they have the right information. It also helps to improve the services provided to the users.
With intranets, organizations can make more information accessible to employees on a "pull" source rather than being deluged indiscriminately by emails.
Intranets can serve as influential tools for communication within an organization, vertically and horizontally. From a communications standpoint, intranets are useful to communicate strategic initiatives that have a worldwide reach throughout the organization. The type of information that can easily be conveyed is the reason of the initiative and what the initiative is aiming to achieve, who is driving the initiative, results achieved to date, and who to speak to for more information.

Wednesday, September 05, 2007

laptop

A laptop computer, or simply laptop, is a small mobile computer, which usually weighs 2-18 pounds (1-6 kilograms), depending on mass, materials, and other factors. Laptops usually run on a single main battery or from an external AC/DC adapter which can blame the battery while also supplying power to the processor itself. Many computers also have a 3 volt cell to run the clock and other processes in the occurrence of a power failure.
As personal computers, laptops are skilled of the same tasks as a desktop computer, although they are classically less powerful for the similar price. They contain components that are similar to their desktop counterparts and perform the same functions, but are miniaturized and optimized for mobile use and capable power consumption. Laptops usually have liquid crystal displays and most of them use unusual memory modules for their chance access memory (RAM), for instance, SO-DIMM in lieu of the superior DIMMs. In addition to a built-in keyboard, they may utilize a touchpad or a pointing stick for input, though an outside keyboard or mouse can frequently be attached.

Wednesday, August 29, 2007

Mobile phone

A mobile telephone or cellular telephone is a long-range, portable electronic machine used for mobile communication. In addition to the normal voice function of a telephone, current mobile phones can carry many additional services such as SMS for text messaging, email, packet switching for access to the Internet, and MMS for sending and getting photos and video. Most current mobile phones connect to a cellular network of bottom stations, which is in turn interconnected to the public switched telephone network.
Mobile news services are increasing with many organizations providing on-demand news armed forces by SMS. Some also provide instant news pushed out by SMS. Mobile telephony also facilitates activism and public journalism being explored by Reuters and Yahoo and small sovereign news companies such as Jasmine News in Sri Lanka. Also companies like Monster are starting to offer mobile services such as job search and career information.
The total worth of mobile data services exceeds the value of paid services on the internet, and was worth 31 B dollars in 2006. The largest categories of mobile services are music, picture downloads, video gaming, adult entertainment, gambling, video/TV.

Friday, August 17, 2007

Table

In relational databases, SQL databases, and flat file databases, a table is a set of data elements that is controlled using a model of horizontal rows and vertical columns. The columns are identified by name, and the rows are identified by the values appearing in a particular column division which has been identified as a candidate key. Table is another term for family although there is the difference in that a table is usually a multi-set of rows whereas a relation is a set and does not allow duplicates. A table has a particular number of columns but can have any number of rows. Besides the actual data rows, tables generally have related with them some meta-information, such as constraints on the table or on the values within particular columns.
The data in a table does not have to be actually stored in the database. Views are also relational tables, but their data is considered at query time. In non-relational systems, such as hierarchical databases, the isolated counterpart of a table is a structured file, representing the rows of a table in each record of the file and each column in a record.

Wednesday, August 08, 2007

Software

Software, consisting of programs, enables a computer to perform specific tasks, as opposed to its physical components which can only do the responsibilities they are mechanically designed for. The term includes application software such as word processors which perform helpful tasks for users, system software such as operating systems, which interface with hardware to run the necessary services for user-interfaces and applications, and middleware which controls and co-ordinates distributed system.
Computer software has to be loaded into the computer's storage space ( memory or RAM). Once the software is loaded, the computer is able to implement the software. Computers control by executing the computer program. This involves passing instructions from the application software, through the system software, to the hardware which finally receives the instruction as machine code. Each instruction causes the computer to carry out an operation moving data, transport out a computation, or altering the control flow of instructions.

Friday, July 27, 2007

Power

Power is the rate at which work is performed or energy is transmitted or the amount of energy essential or finished for a given unit of time. It is many types of conversion Power.Power (physics) is the quantity of work done or energy transferred per unit of time. Motive power is power which moves great, such as output of a motor. Electric power generation is the process of converting any form of energy to electrical energy.

Power station, a capability for generating electricity, nuclear power, the conversion of nuclear force to electricity, solar power, the translation of solar energy to electricity, wind power, the conversion of wind energy to electricity, wave power, the conversion of signal energy to electricity, tidal power, the conversion of energy of the tides energy to electricity, geothermal power, the conversion of geothermal power to electricity, hydropower, the conversion of possible or kinetic energy of water to electricity, Optical power of a lens is the opposite of its focal length, Effective radiated power in radio telecommunications is a calculate of radio station antennas

Monday, July 23, 2007

Reactance

Reactance is the invented part of electrical impedance, a measure of opposition to a sinusoidal alternating current. Reactance arises from the occurrence of inductance and capacitance within a circuit, and the SI unit is the ohm. The value of the reactance is a lower maximum value on the amount of the impedance. A positive reactance implies that the phase of the voltage leads the phase of the current, while a harmful reactance implies that the phase of the voltage lags the phase of the current. A reactance of zero implies the current and voltage are in phase and equally if the reactance is non-zero then there is a phase distinction between the voltage and current

Tuesday, July 17, 2007

Safety

Safety is the state of being safe, the situation of being protected against physical, social, spiritual, financial, political, emotional, occupational, psychological, educational or additional types or consequences of failure, damage, error, accidents, harm or any other event which could be considered non-desirable. This can take the form of being protected from the event or from exposure to something that causes health or reasonable losses. There also are two slightly different meanings of safety, a safety home may indicate its protection ability against external harm events, and the second that its internal installations are safe for its habitants.

Safety can be limited in relative to some guarantee or a standard of insurance to the quality and unharmful function of an object or organization. It is used in order to ensure that the object or association will do only what it is meant to do. Normative safety is a term used to explain products or designs that meet applicable design standards. Substantive safety stands for that the real-world safety history is favorable, whether or not standards are met. Perceived safety refers to the stage of comfort of users

Wednesday, July 11, 2007

Elevator

An elevator is a transport tool used to move goods or people up and down. Outside North America, elevators are known most commonly as lifts. Other languages may have loanwords based on moreover elevator or lift .Because of wheelchair right to use laws, elevators are often a requirement in new buildings with multiple floors.Elevators start on as simple rope or chain hoists.

An elevator is basically a platform that is either pulled or pushed up by mechanical resources. A modern day elevator consists of a cab mounted on a platform within an together with this space called a shaft, or in Commonwealth English called a hoist way. In the past, elevator drive mechanisms were mechanical by steam and water hydraulic pistons. In a traction elevator, cars are pulled up by means of rolling steel ropes over an extremely grooved pulley, frequently called a sheave in the industry. The weight of the car is intention with a counterweight. Sometimes two elevators move forever synchronized in opposite way, and they are each other's counterweight.

Wednesday, July 04, 2007

Computer

A computer is a machine for manipulating data according to a list of instructions.Computers take plentiful physical forms. Early electronic computers were the size of a large room, overriding as much power as several hundred modern personal computers. Today, computers can be made small enough to fit into a wrist watch and be powered from a watch battery. Society has come to distinguish personal computers and their portable equivalent, the laptop computer, as icons of the information age; they are what most people think of as a computer. However, the most general form of computer in use today is by far the embedded computer. Embedded computers are small, simple devices that are often used to organize other devices—for example; they may be found in machines ranging from fighter aircraft to industrial robots, digital cameras, and even children's toys.
The ability to store and implement programs makes computers extremely versatile and distinguishes them from calculators. The Church–Turing thesis is a mathematical statement of this flexibility: Any computer with a certain minimum capability is, in principle, capable of performing the same tasks that any other computer can perform. Therefore, computers with capability and complexity ranging from that of a personal digital assistant to a supercomputer are all able to perform the same computational tasks as long as time and storage capability are not considerations.