Yellow

From Free net encyclopedia

Template:Infobox colorYellow is any color of light that stimulates both the red and green cone cells of the retina, but not the blue cone cells. Light with a wavelength of 565-590 nanometers is yellow, though light with both red frequencies and green frequencies, such as mixing orange and lime light, or red and green light, is also yellow. It is one of the subtractive primary colors, and its scientifically defined complementary color is blue. However, because of the characteristics of paint pigments, painters traditionally regard its complement as purple.

The CMYK system for color printing is based on using four inks, one of which is a yellow color. This is not in itself a standard color, though a fairly narrow range of yellow inks are used.

Contents

Geography

Several place names refer to yellow:

Yellowstone

Northwest Territories, Canada

Plants and animals

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Associations and expressions

Yellow is a bright, cheerful color, often associated with happiness and peace.

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In the English language, yellow has traditionally been associated with jaundice and cowardice. In American slang, a coward is said to be "yellowbellied" or "yellow."

In China, yellow is associated with prosperity, and also a "Yellow Movie" means a pornographic film; contrast "blue movie".

Because it is similar to the gold color and precious metals such as gold or bronze, yellow is associated with coinage and bullion.

"Yellow journalism" was sensationalist journalism that distorts, exaggerates, or exploits news to maximize profit. The term came from Joseph Pulitzer's New York World and William Randolph Hearst's New York Journal American, who engaged in sensational reporting during the late 19th and early 20th century, most famously during the Spanish-American War. The term was derived from the color comic strip The Yellow Kid, which appeared in both papers.

Music

Yellowstone and Voice is a Mexican band. Yellowcard is an American band.

Songs relating to yellow include "Yellow" by Coldplay, from the album Parachutes; "Yellow Submarine" by the Beatles, from the album Revolver (also the title of a film); "Mellow Yellow" by Donovan, from the album of the same name; and "Don't Eat the Yellow Snow" by Frank Zappa, from the album Apostrophe ('). Other music references to refer to yellow include "Truck Drivin' Neighbours Downstairs (Yellow Sweat)" by Beck, from the album Mellow Gold and "Yellow #5," the album by the Mustard Plug.

Government and politics

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  • In ancient China, yellow was the symbol of Centre and Earth, one of the main five colors.
  • The legendary first emperor of China was known as the Yellow Emperor or Huang Di (Chinese: 黃帝, Simplified Chinese: 黄帝).
  • As such, yellow was the symbol for the Emperor of China.
  • Yellow was also the color of the New Party in the Republic of China (Taiwan), which supports Chinese reunification. Pencils are painted yellow because of this association with China, where the best graphite is found; in the past, only pencils with Chinese graphite used to be painted yellow.
  • Yellow also symbolizes royalty in many cultures, including much of southeast Asia. In China, commoners were not allowed to wear yellow until modern times.
  • In the United States, a Yellow Dog Democrat was a Southern voter who consistently voted for Democratic candidates in the late 19th and early 20th centuries because of lingering resentment against the Republicans dating back to the Civil War and Reconstruction period. Today the term refers to a hard-core Democrat, supposedly referring to a person who would vote for a "yellow dog" before voting for a Republican.

Ethnicity

Asians and people of Asian descent are sometimes referred to as "yellow," a racial color metaphor. In the 20th-century United States, immigrants from China and other East Asian nations were derogatorily referred to as a "yellow peril."

The Yellowknife people were a First Nations tribe. The Yellowknife River and the city Yellowknife (the capital of the Northwest Territories) are named after the tribe.

Transportation

In some countries, taxicabs are commonly yellow. This practice began in Chicago, where taxi entrepreneur John Hertz painted his taxis yellow based on a University of Chicago study alleging that yellow is the color most easily seen at a distance.

In Canada and the United States, school buses are almost uniformly painted a yellow color (often referred to as "school bus yellow") for purposes of visibility and safety, and British bus operators such as FirstGroup are attempting to introduce the concept there. "Caterpillar yellow" and "high-visibility yellow" are used for highway construction equipment.

In the rules of the road, yellow ("amber" in Britain) is a traffic light signal meaning "slow down," "caution," or "slow speed ahead." It is intermediate between green (go) and red (stop). In railway signaling, yellow is often the color for warning, slow down, such as with distant signals.

Several light rail and rapid transit lines on various public transportation have a Yellow Line.

Sports

In Association football (soccer), the referee shows a yellow card to indicate that a player has been officially cautioned.

In Rugby Union, the referee shows a yellow card to indicate that a player has been sent to the sin bin.

In auto racing, a yellow flag signals caution. Cars are not allowed to pass one another under a yellow flag.

In cycle racing, the yellow jersey - or maillot jaune - is awarded to the leader in a stage race. The tradition was begun in the Tour de France where the sponsoring L'Auto newspaper (later L'Équipe) was printed on distinctive yellow newsprint.

Other

  • The Yellow Pages is the section of a phone book or online phone directory that lists business numbers by category. They are named for the color paper they are printed on in phone books to distinguish them from the regular listings.
  • Yellowcake (also known as urania and uranic oxide) is concentrated uranium oxide, obtained through the milling of uranium ore. Yellowcake is used in the preparation of fuel for nuclear reactors and in uranium enrichment, one of the essential steps for creating nuclear weapons.
  • The Yellow Rose of Texas, or "Harison's Yellow", first bloomed in New York City in the 1830s.
  • Yellow is the color of the snooker ball that has a 2-point value.
  • When yellow is mixed with green, it creates Lime
  • There is a yellow smile, in Arab culture, which is an ingenuine smile. A yellow smile is used when a person is concealing lack of interest, fear, or any emotion he wishes to keep hidden. It is sometimes used as a joke, by making a face of a crooked, ingenuine smile, when somebody tells a bad joke or is trying to make others laugh for something they do not find humorous enough.
  • There is also a French expression "rire jaune" ("yellow laughter") which could be translated into English as "mirthless laughter", laughing without mirth, laughing when you don't find the joke funny, or when the joke is directed at you.
  • "Yellow" is also mid-twentieth-century American drug slang for Nembutal, a barbiturate. This is due to the yellow color of the pills.
  • "Yellow", or "giallo", in Italy, refers to mystery books, mystery movies, or tv shows, as the spine of mystery novels are colored yellow.
  • The Livestrong wristband is a yellow wristband developed by cyclist and cancer survivor Lance Armstrong to support cancer victims and survivors.
  • Yellow is the name of a submarine telecommunications cable system, also known as AC-2
  • Ace Combat 4's Yellow Squadron is a squadron of elite fighter pilots.
  • On the United States Army, yellow is the color of cavalry.

Yellow pigments

See also

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Electromagnetic Spectrum
Sorted by wavelength, short to long

Gamma ray | X-ray | Ultraviolet | Optical spectrum | Infrared | Terahertz radiation | Microwave | Radio waves |


Visible (optical) spectrum: Violet | Blue | Green | Yellow | Orange | Red |


Microwave spectrum: V band | K band: Ka band, Ku band | X band | C band | S band | L band |


Radio spectrum: EHF | SHF | UHF | VHF | HF/Shortwave | Mediumwave | Longwave | VLF | ULF |SLF | ELF

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