Color (disambiguation)

Color (American usage); colour (international usage)
  • Color is a visible property of light, and, derived from this, of objects and substances. For pure monochromatic light, color is directly determined by the energy per photon. For mixtures of light, see color vision.
  • In quantum chromodynamics, color or color charge, refers figuratively to a certain property of quarks. It can attain the three values "red", "green" and "blue". Quarks of different colors are attracted and quarks of like color are repelled by the strong nuclear force. Color charge is not related to electromagnetic radiation or human color perception in any way.
  • In astronomy, color is the difference of the observed magnitudes of an object in two different wavelengths.
  • In journalism, color is vivid but peripheral commentary on an event, especially in broadcast sports.
  • In law, color refers to certain prima facie rights.
  • In typography, color is the apparent tone of a page of type; a well-justified and properly spaced page is said to have a good color, whereas a poorly-spaced specimen will be uneven and broken with "rivers" of white space and other flaws.
  • In a deck of playing cards, a color is any of the four suits hearts, spades, diamonds and clubs.
  • In politics, colors are associated with different political parties or ideological factions. The classifications vary in different parts of the world. Red is often associated with socialism or communism (but also with the U.S. Republican Party), black with anarchism, blue with conservative parties (but with the U.S. Democratic Party), and green with environmentalists.
  • See also: Color code.

This is a disambiguation page; that is, one that just points to other pages that might otherwise have the same name. If you followed a link here, you might want to go back and fix that link to point to the appropriate specific page.


In the News

New Study Shows SARS Can Infect Brain Tissue
Severe acute respiratory syndrome (SARS), by its very name, indicates a disease of the respiratory tract. But SARS can also infiltrate brain tissue, causing significant central nervous system problems, according to an article in the Oct. 15 issue of Clinical Infectious Diseases, now available online.

Flight of the Bumblebee: Flower Choice Matters
Bees play a vital role in the pollination of native wildflowers, and UWM researchers are studying how invasive species interfere with seed production in these native plants.

Gene Required For Steps From Embryonic To Heart Muscle Cell
The gene Sox17 is discovered to play a central role in the complicated dance of signals, enzymes and proteins that transform embryonic stem cells into a beating heart muscle cell.

Low Levels Of Perchlorate Exposure Are Safe For Pregnant Women, Study
Despite great concerns that small amounts of ingested perchlorate -- a chemical which is ever-present in the environment -- decreases thyroid function among individuals, it has no effect on the thyroid function of women in early pregnancy, including those with a low-iodine diet, according to a new study. Thyroid hormone is critical for the neurodevelopment of a fetus--particularly in the first trimester of pregnancy--and requires the mother to receive an adequate intake of iodine.

G.I. Jones Photographic Archive of Southeastern Nigerian Art and Cultu
Collection of photos from the 1930s by photographer G.I. Jones, who researched and studied "the peoples of southeastern Nigeria -- particularly the Igbo people."Images depict festivals, masks, drums, shrines, wood figures, and other cultural artifacts. Includes a biography of the photographer and a brief bibliography. From Southern Illinois University Carbondale.

Engineers Ready A Blueprint For A Nanomechanical Computer
If efforts now under way by a team of engineers pan out, the age of the nanomechanical computer may be at hand. Instead of relying on solid-state transistors and other electronic components to compute ones and zeroes, such a machine would depend purely on moving parts - gates and pillars and levers and pistons - to create switches, logic gates and memory units, the building blocks of digital computers.

Chance Encounter With Comet Nets Surprising Results
Comets are made of the most primitive stuff in the solar system. As hunks of rock and ice that never coalesced into more planets, they give researchers clues to the evolution of solar systems. So a chance encounter between spacecraft Ulysses and Comet McNaught's ion tail has scientists in marveling at a stroke of luck and some surprising data.

Desires For Fatty Foods And Alcohol Share A Chemical Trigger
A brain chemical that stokes hunger for food and fat also triggers thirst for alcohol and may play a role in chronic drinking, according to a study led by Princeton University scientists.

'Cosmic Freezer' Yields Unique Discovery
Stardust, the NASA spacecraft mission, was given that name in hopes that the seven-year journey to capture comet samples would bring back to Earth, well, stardust. In an article coming out in the December 15, 2006, issue of the journal Science, researchers at Washington University in St. Louis are the first to report that a sample they received from the mission actually does contain stardust -- particles that are older than the sun.

Review: King of KongFilm Gives No Quarter
A funny, new documentary film gives the arcade game contest Super Bowl status. Seth Gordon's King of Kong: A Fistful of Quartersfollows Seattle dad and science teacher Steve Wiebe as he challenges one of gaming's most elusive titles: Donkey Kongrecord holder.


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