Monday, July 27, 2009

Fire

Fire is the rapid oxidation of a combustible material releasing heat, light, and various reaction products such as carbon dioxide and water.If hot enough, the gases may become ionized to produce plasma.Depending on the substances alight, and any impurities outside, the color of the flame and the fire's intensity might vary. Fire in its most common form can result in conflagration, which has the potential to cause physical damage through burning.
Reference : Wikipedia

Tuesday, July 14, 2009

Journalism

Traditional journalists at work in1940s




Journalism is activity or profession of being a journalist, a person who writes for newspapers or magazines or prepares news or features to be broadcast on radio or television.
Johann Carolus' Relation aller Fürnemmen und gedenckwürdigen Historien, published in 1605 in Strassburg, is often recognized as the first newspaper. The first successful English daily, The Daily Courant, was published from 1702 to 1735 From informal beginnings, stimulated by the arrival of mechanized printing—in due course by mass production and in the 20th century by electronic communications technology—today's journalistic enterprises include large corporations with global distribution that include newspapers, television and the Internet.
The formal
status of journalism has varied historically and still varies greatly from country to country. The modern state and hierarchical power structures in general have tended to consider unrestricted flow of information as a potential threat, and inimical to their own proper function.
Censorship, governmental restriction or even active repression of individual journalists and non-state organs of communication continue to cause, at best, intermittent trouble in most countries. Few formal democracies and no authoritarian governments make provision for protection of press freedom implied by the term Fourth Estate.
The rise of internet technology, in particular the advent of
blogging and social networking software, further destabilize journalism as defined traditionally, and its practitioners as a distinct professional category. Combined with the increasing transfer of advertising revenue from print and broadcast media to the internet, the full effect of the arrival of the "citizen journalist" — potentially positive (proliferation having thus far proved more difficult to police) as well as negative— is not yet known.

Reference : Wikipedia