Thursday, January 31, 2008

Media

Media bias is a term used to describe a real or supposed bias of newspapers and news producers within the mass media, in the selection of which events will be reported and how they are covered. The term "media bias" usually refers to a invasive or widespread bias contravening the standards of newspaper journalism, rather than the perception of an individual journalist or article. The direction and degree of media bias in various countries is extensively disputed, although its causes are both practical and theoretical.

Practical limitations to media objectivity include the inability of journalists to report all available stories and facts, and the requirement that selected facts be linked into a coherent tale (Newton 1989). Since it is impossible to report everything, some bias is inevitable. Government persuade, including overt and covert censorship, biases the media in some countries. Market forces that can result in a biased presentation include the ownership of the news source, the selection of staff, the preferences of an intended audience, or pressure from advertisers. Political affiliations arise from ideological positions of media owners and journalists. The space or air time available for reports, as well as deadlines needed to be met, can lead to incomplete and it sounds as if biased stories.

Thursday, January 24, 2008

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.

Thursday, January 10, 2008

Tiger

The tiger is a mammal of the Felidae family, one of four large cats in the Panther a genus. Native to the mainland of southeastern Asia, the tiger is an apex predator and the largest feline species in the world, similar in size to the biggest fossil felids. The Bengal Tiger is the most general subspecies of tiger, constituting approximately 80% of the entire tiger population, and is found in India, Bangladesh, Bhutan, Myanmar, and Nepal. An endangered species, the popular of the world's tigers now live in captivity.

The tiger is introverted and territorial, preferring cover in deep forest, but also ranging in open areas. The cat hunts by stalk-and-ambush and may take a variety of mid- and large-sized prey, particularly ungulates. Males are much larger than females and have bigger home ranges. Amongst the nine extant tiger subspecies, there is major size variation.