Thursday, December 27, 2007

Tsunami

A tsunami is a series of waves shaped when a body of water, such as an ocean, is rapidly displaced. Earthquakes, group movements above or below water, volcanic eruptions and other underwater explosions, landslides, large meteorite impacts and testing with nuclear weapons at sea all have the potential to produce a tsunami. The effects of a tsunami can range from imperceptible to devastating. The word tsunami comes from the Japanese words meaning harbor and wave. For the plural, one can either follow usual English practice and add an s, or use an invariable plural as in Japanese. The term was created by fishermen who returned to port to find the area neighboring their harbor devastated, although they had not been conscious of any wave in the open water. Tsunamis are general throughout Japanese history; approximately 195 events in Japan have been recorded.

A tsunami has a much smaller amplitude (wave height) offshore, and a very long wavelength, which is why they generally pass unobserved at sea, forming only a passing bulge in the ocean. Tsunami have been historically referred to as tidal waves because as they approach land, they take on the characteristics of a vicious onrushing tide rather than the sort of cresting waves that are formed by wind action upon the ocean. Since they are not really related to tides the term is considered misleading and its treatment is discouraged by oceanographers.

Tuesday, December 18, 2007

Pets

A pet is an animal kept for companionship and enjoyment, as opposed to livestock, laboratory animals, working animals or sport animals, which are kept for economic reasons. The most popular pets are noted for their loyal or playful characteristics, for their attractive appearance, or for their song. Pets also generally seem to provide their owners with non-trivial health benefits; keeping pets has been shown to help relieve stress. There is now a medically-approved class of therapy animals, mostly dogs, who are brought to visit confined humans. Walking a dog can provide both the owner and the dog with exercise, fresh air, and social interaction.

Koko the gorilla is one of few examples of a non-human animal which has had an explicit pet. Using sign language, she requested a cat; her first pet was a kitten named All Ball, to which she was reported to be quite attached and mourned for several days after the cat escaped and was killed by a car.

The GloFish is a genetically modified fluorescent zebrafish with bright red, green, and orange fluorescent color. It is the first genetically modified animal to become available as a pet.

Friday, November 30, 2007

Earthquake

An earthquake is the result of a sudden release of stored energy in the Earth's outer layer that creates seismic waves. Earthquakes are accordingly measured with a seismometer, generally known as a seismograph. The magnitude of an earthquake is conventionally reported using the Richter scale or a related instant scale. At the Earth's surface, earthquakes may manifest themselves by a trembling or displacement of the ground. Sometimes, they cause tsunamis, which may lead to loss of life and annihilation of property. An earthquake is caused by tectonic plates getting stuck and putting a damage on the ground. The strain becomes so great that rocks give way by breaking and downhill along fault planes. Earthquakes may occur naturally or as a result of human actions. Slighter earthquakes can also be caused by volcanic activity, landslides, mine blasts, and nuclear tests. In its most generic intelligence, the word earthquake is used to describe any seismic event—whether a natural phenomenon or an event caused by humans—that generates seismic effect.

Monday, November 26, 2007

Calculator

A calculator is a machine for performing calculations. Although modern calculators often incorporate a general purpose computer, the device is calculated for performing specific operations, rather than for flexibility. Modern calculators are more convenient than most computers, though some Pads are comparable in amount to handheld calculators.

In the past, some calculators were as huge as today's computers. The first automatic calculators were mechanical desktop devices which were replaced by electromechanical desktop calculators, and then by electronic devices using first sung valves, then transistors, then hard-wired integrated circuit logic. New calculators are electrically powered and come in innumerable shapes and sizes varying from cheap, give-away, credit-card sized models to more sturdy adding machine-like models with built-in printers.

Wednesday, October 31, 2007

Greek Temples

Though nowadays we call most Greek religious buildings "temples," the earliest Greeks would have referred to a temenos, or holy area. Its holiness, often related with a holy grove, was more significant than the building itself, as it contained the open air altar on which the sacrifices were made. The construction which housed the cult statue in its naos was initially a rather simple structure, but by the middle of the 6th century BCE had become increasingly complicated. Greek temple architecture, where the classical orders were developed, had a deep influence on Western architectural traditions.

Tuesday, October 23, 2007

Computer networking

Computer networking is the engineering discipline anxious with communication between computer systems. Such communicate systems comprise a computer network and these networks generally involve at least two devices able of being networked with at least one usually being a computer. The devices can be separated by a small number of meters or nearly unlimited distances. Computer networking is sometimes considered a sub-discipline of telecommunications, and sometimes of computer science, information technology and computer engineering. Computer networks rely a lot upon the abstract and practical application of these scientific and engineering disciplines.

A computer network is any set of computers connected to each other. Examples of networks are the Internet, a wide area network that is the largest to always exist, or a little home local area network (LAN) with two computers connected with standard networking cables connecting to a network interface card in each computer.

Saturday, October 13, 2007

Hybrid deer

A number of deer hybrids are bred to improve animal protein yield in farmed deer. American elk and Red Deer from the Old World can produce fertile offspring in captivity, and were once measured one species. Hybrid offspring, however, must be able to escape and defend themselves against predators, and these hybrid offspring are not capable to do so in the wild state. Recent DNA, animal actions studies, and morphology and antler characteristics have shown there are not one but three varieties of Red Deer. The hybrids are about 30% more efficient in producing antler by compare velvet to body weight. Wapiti have been introduced into some European Red Deer herds to improve the Red Deer type, but not always with the proposed improvement.
Both male Mule Deer/female White-tailed Deer and male White-tailed Deer/female Mule Deer matting have formed hybrids. Hybrids have been reported in the wild but are disadvantaged because they don't correctly inherit survival strategies. Mule Deer move with bounding leap to escape predators. Slotting is so specialized that only 100% heritably pure Mule Deer seem able to do it. In captive hybrids, even a one-eighth White-tail/seven-eighths Mule Deer hybrid has erratic escape performance and would be unlikely to survive to breeding age. Hybrids do survive on game ranches where both species are kept and where predators are prohibited by man.

Thursday, October 04, 2007

IPL

IPL is Initial program load, used in operating system. In computing, booting is a bootstrapping method that starts operating systems when the user turns on a computer system. A boot series is the set of operations the computer performs when it is switched on that loads an operating system.
Most computer systems can only complete code found in the memory (ROM or RAM). Modern operating systems are stored on hard disks, or occasionally on Live CDs, USB flash drives, or other non-volatile storage devices. When a computer is first power-driven on, it doesn't have an operating system in memory. The computer's hardware alone cannot perform complex measures such as loading a program from disk, so an apparent paradox exists, to load the operating system into memory, one appears to need to have an operating system already loaded. The System/360 IPL function reads 24 bytes from an operator-specified or pre-configured machine into memory starting at location zero. The second and third groups of eight bytes are treated as Channel Command Words (CCWs) to maintain loading the startup program. When the I/O channel instructions are complete, the first group of eight bytes is then loaded into the Program Status Word (PSW) register and the startup program begins completing at the designated location.

Monday, September 17, 2007

Solar wind

The solar wind is a stream of charged particles which are expelled from the upper atmosphere of the sun. It consists mostly of high-energy electrons and protons that are able to get away the sun's gravity in part because of the high temperature of the corona and the high kinetic energy particles gain through a process that is not well understood at this time.

They are directly related to the solar wind, together with geomagnetic storms that can knock out power grids on Earth, auroras and the plasma tail of a comet always pointing away from the sun. While early models of the solar wind used primarily thermal energy to accelerate the material, by the 1960s it was clear that thermal hurrying alone cannot account for the high speed solar wind. Some additional acceleration mechanism is required, but is not presently known, but most likely relates to magnetic fields in the solar atmosphere. The solar wind is answerable for the overall shape of Earth's magnetosphere, and fluctuations in its speed, density, direction, and entrained magnetic field powerfully affect Earth's local space environment.

Monday, September 03, 2007

LCD

A liquid crystal display (LCD) is a thin, flat display appliance made up of any number of color or monochrome pixels arrayed in front of a light source or reflector. It is prized by engineers because it uses very little amounts of electric power, and is therefore suitable for use in battery-powered electronic devices. In color LCDs each individual pixel is separated into three cells, or subpixels, which are coloured red, green, and blue, respectively, by additional filters. Each subpixel can be controlled independently to defer thousands or millions of possible colors for each pixel. Older CRT monitors employ a similar sub pixel structures via the use of phosphors, although the analog electron beam employed in CRTs do not hit correct subpixels.
Color components may be arrayed in a range of pixel geometries, depending on the monitor's usage. If software knows which type of geometry is being used in a given LCD, this can be used to increase the evident resolution of the monitor through subpixel rendering.

Wednesday, August 22, 2007

Banana

Banana is the common name used for herbaceous foliage of the genus Musa, and is also the name given to the fruit of these plants. They are resident to the tropical region of Southeast Asia, the Malay Archipelago, and Australia. They are cultivated primarily for their fruit, and to a lesser level for the production of fibre and as ornamental plants. Because of their size and structure, banana plants are often wrong for trees. The main or upright growth is called a pseudostem, which for some species can gain a height of up to 2–8 m, with leaves of up to 3.5 m in length. Each pseudostem produces a single group of bananas, before dying and being replaced by a new pseudostem.
Bananas are grown in 132 countries worldwide, additional than any other fruit crop. In popular culture and commerce, banana usually refers to soft, sweet dessert bananas that are usually eaten raw. The bananas from a collection of cultivars with firmer, starchier fruit are generally used in cooking rather than eaten raw. Bananas may also be dried up and ground into banana flour. Although the wild species have fruits with numerous large, hard seeds, virtually all culinary bananas have unplanted fruits. Bananas are classified any as dessert bananas or as green cooking bananas.

Monday, August 13, 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 01, 2007

Populations

Populations are studied, in exacting, in a branch of ecology known as population biology, and in population genetics. In population dynamics, size, age and sex structure, mortality, reproductive behavior, and development of a population are studied. In biology, an isolated population denotes a breeding group whose members breed mostly or solely among themselves, usually as a result of physical isolation, although biologically they could breed with any members of the varieties. If there are several completely or nearly completely secluded populations in the global population of a taxon, these are called subpopulations. The Metapopulation is a network of subpopulations in a given area, where the individuals of the various subpopulations are able to cross dilapidated areas of the region. Biological dispersal is one of the key elements upsetting such populations; if dispersal is sufficiently low for a prolonged period of time, speciation is likely to be a consequence.

Population growth is varying in population over time. It also can be quantified as the change in the number of individuals in a population per piece time. The term population growth can technically refer to any species, but almost always refers to humans, and it often used easily for the more specific demographic term population growth rate, and is often used to refer specifically to the expansion of the population of the world.

Wednesday, July 25, 2007

Papaya

The papaya is a fruit of the tree. It is a small tree, the single stem growing from 5 to 10 m tall, with spirally set leaves confined to the top of the trunk, the lower trunk is obviously scarred where leaves and fruit were borne. The leaves are large, 50-70 cm width, deeply palmately lobed with 7 lobes. The tree is typically unbranched if unlopped. The flowers are similar in shape to the flowers of the Plumeria but are much slighter and wax like. They appear on the axils of the leaves, maturing into the large 15-45 cm long and 10-30 cm diameter fruit. The fruit is ripe when it feels soft and its skin has attained amber to orange hue. The fruit's taste is vaguely similar to pineapple and peach, although much milder without the tartness, creamier, and more fragrant, with a texture of a little over-ripened cantaloupe.

The primary use of the papaya is as an safe to eat fruit. The ripe fruit is generally eaten raw, without the skin or seeds. The unripe green fruit of papaya can be eaten ripe, usually in curries, salads and stews.

Thursday, July 19, 2007

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.

Friday, July 13, 2007

Planet

A planet, as defined by the International Astronomical Union (IAU), is a celestial body orbiting a star or stellar remains that is massive enough to be rounded by its own gravity, not massive enough to cause thermonuclear fusion in its core, and has cleared its neighboring region of planetesimals. The term planet changed from something that stimulated across the sky, to a body that orbited the Earth. When the heliocentric model gained sway in the 16th century, it became established that a planet was actually something that directly orbited the Sun. At the end of the 17th century, when the first satellites of Saturn were exposed, the terms planet and satellite were at first used interchangeably, although satellite would gradually become more common in the following century.

The energetic impacts of the smaller planetesimals will heat up the increasing planet, causing it to at least partially melt. The interior of the planet begins to differentiate by mass, mounting a denser core. Smaller terrestrial planets lose most of their atmospheres because of this accretion, but the lost gases can be replaced by out gassing from the mantle and from the succeeding impact of comets.

Friday, July 06, 2007

Birds

Birds evolved from theropod dinosaurs during the Jurassic, and the initial known bird is the Late Jurassic Archaeopteryx, Ranging in size from tiny hummingbirds to the huge Ostrich and Emu, there are between 9,000-10,000 known living bird species in the world, making them the most diverse class of terrestrial vertebrates. Modern birds are characterised by feathers, a beak with no teeth, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a light but strong skeleton. Most birds have forelimbs customized as wings and can fly, though the ratites and several others, particularly endemic island species, have also lost the ability to fly.Many species of bird undertake long distance annual migrations, and many more perform shorter more asymmetrical movements. Birds are social and communicate using visual signals and through calls and song, and contribute in social behaviors including cooperative hunting, helpful breeding, flocking and mobbing of predators. Birds are primarily communally monogamous, with meeting in extra-pair copulations being common in some species; other species have polygamous or polyandrous breeding systems. Eggs are regularly lay in a nest and incubated and most birds have an extended period of parental care after hatching.

Thursday, June 28, 2007

Chemical reaction

A chemical reaction is a progression that results in the interconversion of chemical substances. The substance or substances initially involved in a chemical reaction are called reactants. Chemical reactions are characterized by a chemical change, and they yield one or more products which are, in general, unlike from the reactants. Classically, chemical reactions include changes that strictly involve the motion of electrons in the forming and breaking of chemical bonds, although the general concept of a chemical reaction, in particular the notion of a chemical equation, is applicable to transformation of elementary particles, as well as nuclear reactions. On the classical meaning, therefore, there are only two types of chemical reaction redox reactions and acid-base reaction. The former involve the motion of lone electrons and the latter of an electron pair.

Different chemical reactions are used in combinations in chemical synthesis in order to get a preferred product. In biochemistry, series of chemical reactions aided by enzymes form metabolic pathways, since straight synthesis of a product would be energetically impossible in situation within a cell. Chemical reactions are also divided into organic reactions and non-living reactions.

Thursday, June 21, 2007

Honey

Honey is a sweet and thick fluid produced by honey bees from the nectar of flowers. According to the United States National Honey Board and various international food system, honey stipulates a pure product that does not allow for the addition of any other substance...this includes, but is not limited to, water or other sweeteners. This article refers exclusively to the honey produced by honey bees honey twisted by other bees or other insect have very different properties. Honey is significantly sweeter than table sugar and has attractive chemical properties for baking. Honey has a typical flavor which leads some people to prefer it over sugar and other sweeteners.

Most microorganisms do not grow in honey because of its low water movement of 0.6[2]. However, it is important to note that honey frequently contains dormant end spores of the bacteria Clostridium outline, which can be perilous to infants as the end spores can transform into toxin-producing bacteria in the infant's immature intestinal tract, leading to disease and even death. The study of pollens and spores in raw honey can determine floral sources of honey. Because bees carry an electrostatic charge, and can attract other particles, the same techniques of melissopalynology can be used in area ecological studies of radioactive particles, sand, or particulate pollution.

Thursday, June 07, 2007

Partrice Luzi

Patrice Luzi Bernardi is a French goalkeeper recently with Liverpool but released by the Anfield club in June 2005. He then signed a contract with Belgian side Mouscron.
Having previously played for Monaco and Ajaccio, Luzi made his Liverpool debut in January 2004 against Chelsea in a 1-0 win. He made two wonderful saves to deny Chelsea, but was left frustrated when he later was left out from the first team. His chances where limited when Liverpool loaned in Southampton's Paul Jones to cover from Jerzy Dudek and Chris Kirkland. Patrice Luzi has been described as a good shot stopper with good handling and distribution.
The SRBs are the largest solid-propellant motors ever flown and the first of such large rockets designed for reuse. Each is 149.16 feet long and 12.17 feet in diameter.

Tuesday, May 01, 2007

Communication

Communication allows people to exchange thoughts by one of several methods. There are auditory means, such as speaking or singing, and physical means, such as sign language, touch, or eye contact.
As developed below, communication happens at many levels (even for one single action), in many different ways, and for all beings, and some machines. Many or all, fields of study dedicate some attention to communication, so when speaking about communication it is very important to be sure about what kind of communication are we speaking about, mainly: what type of things are communicated, between what agents, and with what kind of results.

Monday, April 30, 2007

Language

A language is a system, used to communicate, comprised of a set of symbols and a set of rules (or grammar) by which the manipulation of these symbols is governed. These symbols can be combined productively to convey new information, distinguishing languages from other forms of communication. The word language (without an article) can also refer to the use of such systems as a phenomenon. A Specimen of typeset fonts and languages, by William Caslon, letter founder; from the 1728 Cyclopaedia.Human languages use patterns of sound and/or hand gesture for symbols. These sounds can be converted into written form with little loss of information. Gestures and intonation are a part of delivery, but are not conveyed in written form. Some invented human languages have been built entirely on visual cues to enable communication. In human languages, the symbols are sometimes known as lexemes and the rules are usually known as grammars. "Language" is also used to refer to common properties of languages. Language learning is normal in human childhood and is biologically driven: a crucial role of this process is performed by the neural activity of a portion of the human brain known as Broca's area. There are thousands of human languages, and many, if not most seem to share certain properties (see Universal Grammar) as shown by generative grammar studies pioneered by the work of Noam Chomsky. Recently, it has been proved that a dedicated network in the human brain (crucially involving Broca's area, a portion of the left inferior frontal gyrus), is selectively activated by those languages that meet the Universal Grammar requirements.
There is no clear distinction between a language and a dialect, notwithstanding linguist Max Weinreich's famous aphorism that "a language is a dialect with an army and navy." In other words, the distinction may hinge on political considerations as much as on cultural differences, distinctive writing systems, or degree of mutual intelligibility.

Monday, April 02, 2007

Commodity

Commodity is a term with different meanings in both business and in Marxian political economy. For the former, it is a largely homogeneous product, traded solely on the basis of price, whereas for the latter, it refers to wares offered for exchange.

Linguistically, the word commodity came into use in English in the 15th century, being derived from the French word "commodite, meaning today's (2000) "convenience" in term of quality of services. The Latin root meaning is commoditas, referring variously to the appropriate measure of something; a fitting state, time or condition; a good quality; efficaciousness or propriety; and advantage, or benefit. The German equivalent is die Ware, i.e. wares or goods offered for sale. The French equivalent is "produit de base" like energy, goods, and industrial raw materials.

Monday, February 05, 2007

Creditor

A creditor is a party who claims that a second party owes the first party some properties or services. The first party, in common, has provided some property or service to the second party under the assumption that the second party will return an equal property or service. The first party is regularly called a lender, and the second party is frequently called a debtor or borrower.

In other words, your creditors are people to whom you owe money. The term creditor is commonly used in the financial world, particularly in orientation to short term loans, long term bonds, and mortgages. The term creditor derived from the concept of credit. In modern America, credit refers to a rating which indicates the ability of a borrower and likelihood to pay back his or her loan. In earlier times, credit also referred to reputation or trustworthiness.

Saturday, January 13, 2007

Human rights in the People's Republic of China

The Constitution of the People's Republic of China guarantees freedom of speech, freedom of the press, the right to a fair trial, freedom of religion, universal suffrage, and property rights. However, censorship of political speech and information is explicitly and routinely used to protect what the government considers national security interests. The government has a policy of suppressing most protests and organizations that it considers a threat to social steadiness and national unity, as was the case with the Tiananmen Square protests of 1989. However, there are limits to the methods that the Party is willing to use as the media have become progressively more active in publicizing social problems, and exposing corruption and inefficiency at lower levels of government. The Party has also been rather ineffective at controlling information, and in some cases has had to change policies in response to public outrage. Although organized opposition against the Party is not accepted, demonstrations over local issues are recurrently and increasingly tolerated.