Monday, March 9, 2009

Pakistan

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Pakistan, officially the Islamic Republic of Pakistan, is a country located in South Asia and borders Central Asia and the Middle East. It has a 1,046 kilometre (650 mile) coastline along the Arabian Sea and Gulf of Oman in the south, and is bordered by Afghanistan and Iran in the west, India in the east and China in the far northeast. Tajikistan also lies adjacent to Pakistan but is separated by the narrow Wakhan Corridor. In recent times, Pakistan has been called part of the Greater Middle East.

The region forming modern Pakistan was home to the ancient Indus Valley Civilisation and then, successively, recipient of ancient Vedic, Persian, Indo-Greek and Islamic cultures. The area has witnessed invasions and/or settlement by the Aryans, Persians, Greeks, Arabs, Turks, Afghans, Mongols and the British. It was a part of British India during the British Raj from 1858 to 1947, when the Pakistan Movement for a state for Muslims, led by Muhammad Ali Jinnah and the Muslim League resulted in the independence and creation of the state of Pakistan, that comprised the provinces of Sindh, North-West Frontier Province, West Punjab, Balochistan and East Bengal. With the adoption of its constitution in 1956, Pakistan became an Islamic republic. In 1971, a civil war in East Pakistan resulted in the independence of Bangladesh. Pakistan's history has been characterized by periods of economic growth, military rule and political instability.

Pakistan is the sixth most populous country in the world and has the second largest Muslim population in the world after Indonesia. The country is listed among the "Next Eleven" economies. Pakistan is a founding member of the Organisation of the Islamic Conference, South Asian Association for Regional Cooperation, Developing 8 Countries, G20 developing nations and the Economic Cooperation Organisation. It is also a member of the United Nations, Commonwealth of Nations, World Trade Organisation, Shanghai Cooperation Organisation, G33 developing countries, Group of 77 developing nations, major non-NATO ally of the United States and is a nuclear state.

Allah


Allah is the standard Arabic word for God.[1] While the term is best known in the West for its use by Muslims as a reference to God, it is used by Arabic-speakers of all Abrahamic faiths, including Christians and Jews, in reference to "God". The term was also used by pagan Meccans as a reference to the creator-god, possibly the supreme deity in pre-Islamic Arabia.

The concepts associated with the term Allah (as a deity) differ among the traditions. In pre-Islamic Arabia amongst pagan Arabs, Allah was not the sole divinity, having associates and companions, sons and daughters, a concept strongly opposed by Islam. In Islam, the name Allah is the supreme and all-comprehensive divine name. All other divine names are believed to refer back to Allah. Allah is unique, the only Deity, creator of the universe and omnipotent. Arab Christians today, having no other word for 'God' than Allah,  use terms such as Allāh al-ʼAb ( الله الأب) "God the Father". There are both similarities and differences between the concept of God as portrayed in the Qur'an and the Hebrew Bible.

Wednesday, March 4, 2009

Birds


Birds are winged, vertebrate animals that lay eggs. There are around 10,000 living species, making them the most numerous tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic to the Antarctic. Birds range in size from the 5 cm (2 in) Bee Hummingbird to the 2.7 m (8 ft 10 in) Ostrich. The fossil record indicates that birds evolved from theropod dinosaurs during the Jurassic period, around 150–200 Ma (million years ago), and the earliest known bird is the Late Jurassic Archaeopteryx, c 155–150 Ma.

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 lightweight but strong skeleton. All birds have forelimbs modified as wings and most can fly, with some exceptions including ratites, penguins, and a number of diverse endemic island species. Some birds, especially corvids and parrots, are among the most intelligent animal species; a number of bird species have been observed manufacturing and using tools, and many social species exhibit cultural transmission of knowledge across generations.

Many species undertake long distance annual migrations, and many more perform shorter irregular movements. Birds are social; they communicate using visual signals and through calls and songs, and participate in social behaviours including cooperative breeding and hunting, flocking, and mobbing of predators.

Many species are of economic importance, mostly as sources of food acquired through hunting or farming. Some species, particularly songbirds and parrots, are popular as pets. Other uses include the harvesting of guano (droppings) for use as a fertiliser. Birds figure prominently in all aspects of human culture from religion to poetry to popular music. About 120–130 species have become extinct as a result of human activity since the 17th century, and hundreds more before then. Currently about 1,200 species of birds are threatened with extinction by human activities, though efforts are underway to protect them.

kites


A kite is a flying tethered aircraft that depends upon the tension of a tethering system. The necessary lift that makes the kite wing fly is generated when air (or in some cases water) flows over and under the kite's wing, producing low pressure above the wing and high pressure below it. This deflection also generates horizontal drag along the direction of the wind. The resultant force vector from the lift and drag force components is opposed by the tension of the one or more lines or tethers. The anchor point of the kite line may be static or moving (e.g., the towing of a kite by a running person, boat,or vehicle).

Kites are usually heavier-than-air, but there is a second category of lighter-than-air kite called a helikite which will fly with or without wind. Helikites work on a different stability principle to normal kites as helikites are helium-stabilised as well as wind stabilised. They are a stable combination of a helium balloon and kite-sail to create a single aerodynamically sound kite. When flown in wind a helikite will lift far more than its helium alone, and it will fly very well if weighted down to be considerably heavier than air.

Kites may be flown for recreation, art or other practical uses. Sport kites can be flown in aerial ballet, sometimes as part of a competition. Power kites are multi-line steerable kites designed to generate large forces which can be used to power activities such as kite surfing, kite landboarding or kite buggying. Kites towed behind boats can lift passengers which has had useful military applications in the past.

Mobile Phones


A mobile phone (also known as a handphone, wireless phone, cell phone, cellular phone, cellular telephone or cell telephone) is a long-range, electronic device used for mobile voice or data communication over a network of specialized base stations known as cell sites. In addition to the standard voice function of a mobile phone, telephone, current mobile phones may support many additional services, and accessories, such as SMS for text messaging, email, packet switching for access to the Internet, gaming, Bluetooth, infrared, camera with video recorder and MMS for sending and receiving photos and video, MP3 player, radio and GPS. Most current mobile phones connect to a cellular network of base stations (cell sites), which is in turn interconnected to the public switched telephone network (PSTN) (the exception is satellite phones).

A mobile phone proper typically has a telephone keypad, more advanced devices have a separate key for each letter. Some mobile phones have a touchscreen.

Friday, February 27, 2009

Love


Love is any of a number of emotions and experiences related to a sense of strong affection and attachment. The word love can refer to a variety of different feelings, states, and attitudes, ranging from generic pleasure to intense interpersonal attraction. The word love is both a verb and a noun. Love is not a single feeling but an emotion built from two or more feelings. Anything vital to us creates more than one feeling, and we also have feelings about our feelings (and thoughts about our feelings). This diversity of uses and meanings, combined with the complexity of the feelings involved, makes love unusually difficult to consistently define, even compared to other emotional states.

As an abstract concept, love usually refers to a deep, ineffable feeling of tenderly caring for another person. Even this limited conception of love, however, encompasses a wealth of different feelings, from the passionate desire and intimacy of romantic love to the nonsexual emotional closeness of familial and platonic love to the profound oneness or devotion of religious love. Love in its various forms acts as a major facilitator of interpersonal relationships and, owing to its central psychological importance, is one of the most common themes in the creative arts.

Street racing


Street racing  is a form of unsanctioned and illegal auto racing which takes place on public roads. Street racing can either be spontaneous or well-planned and coordinated. Well coordinated races, in comparison, are planned in advance and often have people communicating via 2-way radio/citizens' band radio and using police scanners and GPS units to mark locations of local police hot spots. Street racing is reported to have originated prior to the 1930s due to alcohol prohibition in some parts of the United States. At the time smugglers of unrefined and illegal alcohol would try to find ways to make more power and achieve better handling from their engine and suspension.

Street racing's heyday was the late 1940s and early 1950s, at just the time organized stock-car racing and drag racing were becoming commercial spectator sports. All across the country, every city and town had semi-formalized street-racing, with matches typically being arranged in the parking lot of a local drive-in restaurant, and the races themselves being run on a deserted road on the edge of town. Typical was the medium-sized city of Pasadena, California, where the "staging area" was the Rite Spot drive-in on the western city limits, and the races themselves often took place on a road that gave access to the Rose Bowl but had virtually no traffic most of the time. One of the most successful Pasadena street racers was Peter Joseph Massett (1936-2002), whose recollections were used by Robert Post to write a book about the culture and technology of drag racing from 1950 to 2000. Opponents to street racing cite a lack of safety relative to sanctioned racing events, as well as legal repercussions arising from incidents, among street racing's drawbacks.