Sunday, August 26, 2007

Playground slides

Playground slides are found in parks, schools, playgrounds and backyards around the earth. Slides are constructed of either plastic or metal and they have a soft surface that is either straight or wavy/rippled. Slides are integral parts of playgrounds. The user, normally a child, climbs to the top of the slide via a steps or stairs and sits down on the top of slide and "slides" down the slide. Some slides are directly, others wind their way down. Slides come in different shapes, sizes and colors. Some slides are commercial, found in playground at parks and schools. Other slides are part of residential playgrounds.

Sunday, August 19, 2007

CPU Socket

The term CPU socket is commonly used to describe the connector linking the motherboard to the CPU in certain types of desktop and server computers, particularly those compatible with the Intel x86 architecture.

Most CPU sockets and processors in use today are built around the pin grid array architecture, in which the pins on the base of the processor are inserted into the socket. To aid installation, zero insertion force sockets are usually used, allowing the processor to be inserted without any confrontation, while gripping the pins firmly once the processor is in place to ensure a reliable contact. In contrast to CPU sockets, slot-based processors and CPUs use a single-edged connection rather than a socket, and slot into the motherboard on their side. Slot architectures are not often used today.

Sunday, August 12, 2007

Meteorology

Meteorology is the interdisciplinary scientific study of the ambiance that focuses on weather processes and forecasting. Meteorological phenomena are observable weather events which illuminate and are explained by the science of meteorology. Those actions are bound by the variables that exist in Earth's atmosphere. They are temperature, pressure, water vapor, and the gradients and interactions of each variable, and how they change in time. The majority of Earth's observed weather is located in the troposphere.

Thursday, August 02, 2007

Traffic

Traffic is the movement of motorized vehicles, notarized vehicles and pedestrians on roads. Traffic laws are the laws which govern traffic and regulate vehicles, while rules of the road are both the laws and the informal rules that may have developed over time to facilitate the orderly and timely flow of traffic. Organized traffic normally has well-established priorities, lanes, right-of-way, and traffic control at intersections.

Wednesday, July 25, 2007

digital image

A digital image is an illustration of a two-dimensional image as a finite set of digital values, called picture elements or pixels. The digital image contains a fixed number of rows and columns of pixels. Pixels are the smallest individual element in an image, share quantized values that represent the brightness of a given color at any specific point.

Sunday, July 15, 2007

Krill fishery

Krill fishery is the profitable fishery of krill, small shrimp-like marine animals that live in the oceans world-wide. Estimates for how much krill there is vary wildly, depending on the methodology used. They range from 125–725 million tones of biomass globally. The total global harvest of krill from all fisheries amounts to 150 – 200,000 tones annually, mainly Antarctic krill (Euphausia superb) and North Pacific krill (E. Pacifica).

Krill are rich in protein (40% or more of dry weight) and lipids (about 20% in E. superb). Their exoskeleton amounts to some 2% of dry weight of chitin. They also contain traces of a wide array of hydrolytic enzymes such as proteases, carbohydrates, nucleases and phospholipids, which are intense in the digestive gland in the cephalothoraxes of the krill.

Tuesday, July 10, 2007

A Personal portal

A Personal portal is a site on the World Wide Web that characteristically provides personalized capabilities to its visitors, given that a pathway to other content. It is intended to use distributed applications, different numbers and types of middleware and hardware to provide services from a number of different sources. In addition, business portals are intended to share collaboration in workplaces. A further business-driven requirement of portals is that the content be able to work on multiple platforms such as personal computers, personal digital assistants (PDAs), and cell phones.

Monday, July 02, 2007

Freshwater prawn farm

A freshwater prawn farm is an aquaculture business designed to raise and produce freshwater prawn or shrimp1 for human consumption. Freshwater prawn farming shares many characteristics with, and many of the same problems as, marine shrimp farming. Unique problems are introduced by the developmental life cycle of the main species The global annual production of freshwater prawns (excluding crayfish and crabs) in 2003 was about 280,000 tons, of which China produced some 180,000 tons, followed by India and Thailand with some 35,000 tons each. Additionally, China produced about 370,000 tons of Chinese river crab

Friday, June 29, 2007

Solar System

Solar System consists of the Sun and the other space objects gravitationally bound to it: the eight planets, their 162 known moonsthree currently recognized dwarf planets (including Pluto) and their four known moons, and billions of small bodies. This last group includes asteroids, Kuiper belt objects, comets, meteoroids and interplanetary dust.

In wide terms, the charted regions of the Solar System consist of the Sun, four terrestrial inner planets, an asteroid belt composed of small rocky bodies, four gas giant outer planets, and a second belt, called the Kuiper belt, collected of icy objects. Beyond the Kuiper belt lies the scattered disc, the heliopause, and eventually the hypothetical Oort cloud.

In sort of their distances from the Sun, the planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Six of the eight planets are in turn orbited by natural satellites, usually termed "moons" after Earth's Moon, and each of the outer planets is encircled by planetary rings of dust and other particles. All the planets apart from Earth are named after gods and goddesses from Greco-Roman mythology. The three dwarf planets are Pluto, the largest known Kuiper belt object; Ceres, the largest object in the asteroid belt; and Eris, which lies in the scattered disc.

Sunday, June 24, 2007

Society

A society is a grouping of individuals, which is characterized by common interests and may have distinctive culture and institutions. In a society, members can be from a different ethnic group. A "Society" may refer to a particular people, such as the Nuer, to a nation state, such as Switzerland, or to a broader cultural group, such as a Western society. Society can also refer to an organized group of people linked together for religious, benevolent, cultural, scientific, political, patriotic, or other purposes.

Tuesday, June 19, 2007

Fishing

Fishing is the activity of hunting for fish by hooking, trapping, or gathering. By extension, the term fishing is applied to pursuing other aquatic animals such as various types of shellfish, squid, octopus, turtles, frogs, and some edible marine invertebrates. The term fishing is not usually applied to pursuing aquatic mammals such as whales, where the term "whaling" is more appropriate. Fishing is an ancient and worldwide practice with various techniques and traditions and it has been transformed by modern technological developments. In addition to providing food through harvesting fish, modern fishing is both a recreational and professional sport.

Tuesday, June 12, 2007

Kolkata

Calcutta is the capital of the Indian state of West Bengal. It is located in eastern India on the east bank of the River Hooghly. The city has a population of almost 11 million, with an extended metropolitan population of over 14 million, making it the third-largest urban agglomeration and the third-largest city in India.
The city was very populated and served as the capital of India during the British Raj until 1911. Once the centre of modern education, science, culture and politics in India, Kolkata witnessed economic stagnation in the years following India's independence in 1947. However, since the year 2000, an economic rejuvenation has arrested the morbid decline, leading to a spurt in the city's growth. Like other large cities, Kolkata continues to struggle with urbanisation problems like poverty, pollution and traffic congestion.
A vibrant city with a distinct socio-political culture, Kolkata is noted for its revolutionary history, ranging from the Indian struggle for independence to the leftist and trade union movements.

Thursday, June 07, 2007

Batteries

Electronic watches require electricity as a power source. Some mechanical movements and hybrid electronic-mechanical actions also require electricity. Usually the electricity is provided by a replaceable battery.
The first use of electrical power in watches was as replacement for the mainspring, in order to remove the need for winding. The first electrically-powered watch, the Hamilton Electric 500, was released in 1957 by the Hamilton Watch Company of Lancaster, Pennsylvania. Batteries for watches are specially designed for their purpose. They are very small and provide tiny amounts of power incessantly for very long periods. In most cases, replacing the battery requires a trip to a watch-repair shop or watch dealer; this is especially true for watches that are designed to be water-resistant, as special tools and procedures are required to ensure that the watch remains water-resistant after battery replacement. Silver-oxide and lithium batteries are popular today; mercury batteries, formerly quite common, are no longer used, for ecological reasons. Cheap batteries may be alkaline, of the same size as silver-oxide but providing shorter life.

Sunday, June 03, 2007

Titan Industries

Titan Industries is the world's sixth largest wrist watch manufacturer and India's leading producer of watches under the Titan and Sonata brand names. It is a joint business enterprise between India's most respected business organization - the Tata Group and the Tamil Nadu Industrial Development Corporation. Its product portfolio includes watches, clocks, accessories and jewelers, in both contemporary and traditional designs. It exports watches to about 32 countries around the world with manufacturing facilities in Hosur, Dehradun, Goa and manufactures precious jewelers under the Tanishq brand name, making it India's only national jewelers brand. It is an additional of the Tata Group.

Tuesday, May 29, 2007

Nutrition

Nutrition is a science which studies the relationship between diet and states of health and disease. Dietitians are Health professionals who are particular in this area of expertise. They are also the only extremely trained health professionals able to provide safe, evidence-based and accurate dietary advice and interventions.
Between extremes of optimal health and death from starvation or malnutrition, there is an array of disease states that can be caused or alleviated by changes in diet. Deficiencies, excesses and imbalances in diet can produce negative impacts on health, which may lead to diseases such as scurvy, obesity or osteoporosis, as well as mental and behavioral problems. Moreover, excessive ingestion of elements that have no apparent role in health, (e.g. lead, mercury, PCBs, dioxins), may incur toxic and potentially lethal belongings, depending on the dose. The science of nutrition attempts to understand how and why exact dietary aspects influence health.

Monday, May 21, 2007

Joystick

A joystick is a personal computer tangential or general control device consisting of a handheld stick that pivots about one end and transmits its angle in two or three dimensions to a computer. Joysticks are often used to control video games, and generally have one or more push-buttons whose state can also be read by the computer. The term joystick has become a synonym for game controllers that can be connected to the computer since the computer defines the input as a "joystick input”. Apart for controlling games; joysticks are also used for controlling machines such as elevators, cranes, trucks, powered wheelchairs and some zero turning radius lawn mowers. More lately miniture joysticks have been adopted as navigational devices for smaller electronic apparatus such as mobile phones.

Tuesday, May 15, 2007

Metal

In chemistry, a metal is a constituent that readily loses electrons to form positive ions and has metallic bonds between metal atoms. Metals form ionic bonds with non-metals. They are sometimes described as a web of positive ions surrounded by a cloud of delocalized electrons. The metals are one of the three groups of elements as eminent by their ionization and bonding properties, along with the metalloids and nonmetals. On the periodic table, a diagonal line drawn from boron separates the metals from the nonmetals. Most elements on this line are metalloids, sometimes called semi-metals; elements to the lower left are metals; elements to the upper right are nonmetals.

A modern definition of metals is that they have overlapping conveyance bands and valence bands in their electronic structure. This definition opens up the category for metallic polymers and other organic metals, which have been prepared by researchers and employed in high-tech devices. These synthetic materials often have the characteristic silvery-grey reflective ness of elemental metals.

Wednesday, May 09, 2007

Finance

Finance studies and addresses the ways in which individuals, businesses, and organizations raise, allocate, and use financial income over time, taking into account the risks entailed in their projects. The term finance means the study of money and other assets; the activity of finance is the relevance of a set of techniques that individuals and organizations (entities) use to control their financial affairs, particularly the differences between income and expenditure and the risks of their investments.

An entity whose income exceeds its expenditure can lend or invest the excess income. On the other hand, an entity whose income is less than its expenditure can raise assets by borrowing or selling impartiality claims, decreasing its expenses, or increasing its income. The lender can find a borrower, a financial intermediary, such as a bank or buy notes or bonds in the bond market. The lender receives interest, the borrower pays a higher interest than the lender receives, and the financial intermediary pockets the difference.

Finance is used by individuals (personal finance), by governments (public finance), by businesses (corporate finance), etc., as well as by a broad variety of organizations including schools and non-profit organizations. In general, the goals of each of the above activities are achieved through the use of suitable financial instruments, with consideration to their institutional setting.

Finance is one of the most important aspects of business management. Without proper financial planning a new enterprise is unlikely to be successful. Managing money is essential to guarantee a secure future, both for the individual and an organization.

Thursday, May 03, 2007

Solar System

Solar System consists of the Sun and the other space objects gravitationally bound to it: the eight planets, their 162 known moonsthree currently recognized dwarf planets (including Pluto) and their four known moons, and billions of small bodies. This last group includes asteroids, Kuiper belt objects, comets, meteoroids and interplanetary dust.

In wide terms, the charted regions of the Solar System consist of the Sun, four terrestrial inner planets, an asteroid belt composed of small rocky bodies, four gas giant outer planets, and a second belt, called the Kuiper belt, collected of icy objects. Beyond the Kuiper belt lies the scattered disc, the heliopause, and eventually the hypothetical Oort cloud.

In sort of their distances from the Sun, the planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Six of the eight planets are in turn orbited by natural satellites, usually termed "moons" after Earth's Moon, and each of the outer planets is encircled by planetary rings of dust and other particles. All the planets apart from Earth are named after gods and goddesses from Greco-Roman mythology. The three dwarf planets are Pluto, the largest known Kuiper belt object; Ceres, the largest object in the asteroid belt; and Eris, which lies in the scattered disc.

Sunday, April 29, 2007

Nanotechnology

Nanotechnology is a pasture of applied science and technology covering a wide range of topics. The main unifying premise is the control of matter on a scale smaller than 1 micrometer, normally between 1-100 nanometers, as well as the manufacture of devices on this same length scale. It is a highly multidisciplinary field, drawing from fields such as colloidal science, device physics, and supra molecular chemistry. Much hypothesis exists as to what new science and technology might result from these lines of research. Some view nanotechnology as a marketing term that describes pre-existing lines of research applied to the sub-micron size scale.

In spite of the apparent ease of this definition, nanotechnology actually encompasses diverse lines of inquiry. Nanotechnology cuts across many disciplines, together with colloidal science, chemistry, applied physics, materials science, and even mechanical and electrical engineering. It could variously be seen as an extension of existing sciences into the Nanoscale, or as a recasting of existing sciences using a newer, more recent term. Two major approaches are used in nanotechnology: one is a "bottom-up" approach where materials and devices are built from molecular components which gather themselves chemically using principles of molecular gratitude; the other being a "top-down" approach where nano-objects are constructed from larger entities without atomic-level control.