World

World is a common name for the whole of human civilization, specifically human experience, history, or the human condition in general, worldwide, i.e. anywhere on Earth or pertaining to anywhere on Earth.

In a philosophical context it may refer to:

In a theological context, world usually refers to the material or the profane sphere, as opposed to the celestial, spiritual, transcendent or sacred. The "end of the world" refers to scenarios of the final end of human history, often in religious contexts.

World history is commonly understood as spanning the major geopolitical developments of about five millennia, from the first civilizations to the present.

World population is the sum of all human populations at any time; similarly, world economy is the sum of the economies of all societies (all countries), especially in the context of globalization. Terms like world championship, gross world product, world flags etc. also imply the sum or combination of all current-day sovereign states.

Origin

Origin, origins, or original may refer to:

Beginning of the universe and life

Science and technology

Black operation

A black operation or black op is a covert operation by a government, a government agency, or a military organization. This can include activities by private companies or groups. Key features of a black operation are that it is secret and it is not attributable to the organization carrying it out. The main difference between a black operation and one that is merely secret is that a black operation involves a significant degree of deception, to conceal who is behind it or to make it appear that some other entity is responsible ("false flag" operations).

A single such activity may be called a "black bag operation"; that term is primarily used for covert or clandestine surreptitious entries into structures to obtain information for human intelligence operations. Such operations are known to have been carried out by the FBI, the Central Intelligence Agency,Mossad, MI6, ISI (Pakistan), RAW, MSS, and the intelligence services of other nations.

Etymology

"Black" may be used as a generic term for any government activity that is hidden or secret. For example, some activities by military and intel agencies are funded by a classified "black budget," of which the details, and sometimes even the total, are hidden from the public and from most congressional oversight.

Call of Duty: Black Ops II

Call of Duty: Black Ops II is a first-person shooter video game, developed by Treyarch and published by Activision (Square Enix for Japan). It was released on November 13, 2012 for Microsoft Windows, PlayStation 3, and Xbox 360 and on November 18, 2012 in North America, November 30, 2012 in Europe and Australia for the Wii U.Black Ops II is the ninth game in the Call of Duty franchise of video games and a sequel to the 2010 game Call of Duty: Black Ops. The game was launched at 16,000 stores worldwide at midnight on November 13, 2012.

Black Ops II is the first game in the Call of Duty franchise to feature future warfare technology and the first to present branching storylines driven by player choice as well as selecting weapons before starting story mode missions. It also offers a 3D display option. A corresponding game, Call of Duty: Black Ops: Declassified, was released simultaneously on the PlayStation Vita. Within 24 hours of going on sale, the game grossed over $500 million. It had remained the largest entertainment launch of all time until September 2013, when Take-Two announced that Grand Theft Auto V had grossed $800 million in its first day of release. It went on to sell 7.5 million copies in the U.S. in November 2012, making it the highest grossing game of the month.

Color

Color (American English) or colour (Commonwealth English) is the visual perceptual property corresponding in humans to the categories called red, blue, yellow, etc. Color derives from the spectrum of light (distribution of light power versus wavelength) interacting in the eye with the spectral sensitivities of the light receptors. Color categories and physical specifications of color are also associated with objects or materials based on their physical properties such as light absorption, reflection, or emission spectra. By defining a color space colors can be identified numerically by their coordinates.

Because perception of color stems from the varying spectral sensitivity of different types of cone cells in the retina to different parts of the spectrum, colors may be defined and quantified by the degree to which they stimulate these cells. These physical or physiological quantifications of color, however, do not fully explain the psychophysical perception of color appearance.

The science of color is sometimes called chromatics, colorimetry, or simply color science. It includes the perception of color by the human eye and brain, the origin of color in materials, color theory in art, and the physics of electromagnetic radiation in the visible range (that is, what we commonly refer to simply as light).