Yellow
Yellow 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 in terms of color mixing using
light is
blue. However, because of the characteristics of paint pigments, painters traditionally regard its complement as violet.
Encyclopedia
Yellow 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 in terms of color mixing using
light is
blue. However, because of the characteristics of paint pigments, painters traditionally regard its complement as violet.
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.
Geography
Several place names refer to yellow:
...
·
Yellow Pine, Alabama,
Yellow Pine, Idaho and
Yellowpine, Texas ·
Yellow Rock, Kentucky ·
Yellow Spring, West Virginia ·
Yellow Springs, Maryland and
Yellow Springs, Ohio ·
Yellowtain, MontanaYellowstoneNorthwest Territories, Canada ...
in
Canada, with population of about 18,000.
- Yellowknife River is a river in the Northwest Territories; it flows south and empties into Yellowknife Bay, part of Great Slave Lake, at the city of Yellowknife.
- Territorial electoral hold him for the Legislative Assembly of the Northwest Territories that refer to Yellowknife: Yellowknife Great Slave, Yellowknife Centre, Yellowknife Frame Lake, Yellowknife Great Slave, Yellowknife Kam Lake, Yellowknife Range Lake, Yellowknife River, Yellowknife South, Yellowknife Water Aerodrome, and Yellowknife Weledeh.
Plants and animals
...
s are medium-sized
woodpeckers. Adults are black with white bars on the back, wings, and head, with a yellow breast and upper belly and a white lower belly. They are found throughout
Canada, eastern
Alaska, the
eastern United States, and
Central America. Like other
sapsuckers, they drill holes in trees and eat the sap and insects drawn to it.
...
songbird found in southern parts of Canad?a, the United States, Mexico, and Central America. They are
olive with a white bellies and a yellow throat and breast, with a long tail, a thick heavy bill, a large white eye ring, and dark legs.
...
is a mosquito in the
Aedes genus, so named because they transmit
dengue fever and
yellow fever, the mosquito-born viruses.
- Yellow-green alga, also called xanthophytes, are a class of algae in the Heterokontophyta division. Most live in freshwater, but some are found in marine and soil habitats. They vary from single-celled flagellates to simple colonial and filamentousforms. Unlike other heterokonts, yellow-green algae's chloroplasts do not contain fucoxanthin, which is why they have a lighter color.
...
. It breeds across
Europe and much of
Asia. Most yellowhammers are resident, but some far northern birds migrate south in winter. It is common in all sorts of open areas with some scrub or trees. They are large with a thick seed-eater's bill. The males have a bright yellow head, yellow underparts, and a heavily streaked brown back. Females are much duller and more streaked below.
...
.
...
s of the genus
Vespula or
Dolichovespula . They can be identified by their distinctive black-and-yellow color, small size , and entirely black
antennae.
- The yellowlegs are the Greater Yellowlegs and Lesser Yellowlegs , part of the Tringa genus along with redshanks, sandpipers, and greenshanks.
- Yellow perch are small wide-mouthed perch in the United States and Canada. It is paler and more yellowish than other perch species, with less reddish fins.
- Yellow pine may refer to certain pines in the subgenus Pinus. In the United States, the term refers to several closely-related species of pine with yellow-tinted wood, including loblolly pine, slash pine, shortleaf pine, ponderosa pine, jeffrey pine and others. More than one of these species occur at sites, with the term "yellow pine forests" typically used in forestry and ecology to describe such forests or stands that contain more than one of these species. In Britain, "yellow pine" is a name sometimes used in the timber trade for the wood of several additional pines, including scots pine and eastern white pine.
- Yellow poplar is another term for liriodendron, the tulip tree.
- The Yellow-shafted Flicker
...
is a large
woodpecker species of eastern North America. They have yellow shafts on their wing and tail feathers.
- Yellowtail is the common name for dozens of different fish species that have yellow tails or a yellow body.
...
species in the group, breeds over much of
North America. All the yellowthroats have similar plumage, with yellow-green upperparts, yellow breast, and a mainly black bill.
Associations and expressions
Yellow is a bright, cheerful color, often associated with
happiness and
peace.
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."
Near the end of the 18th century, the color yellow was often associated with mental illness, specifically including insanity, and with other sorts of mental problems . Examples include
The Yellow Book, The Yellow Wallpaper, The King in Yellow, and
The Yellow Sign.
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 was a newspaper [i] published in New York [i] from 1860 [i] until 1931 [i]. ...
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, t...
, which appeared in both papers.
Government and politics
- 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 .
- 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 , 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.
- In many countries, yellow symbolizes liberalism.
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 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 for purposes of visibility and safety, and British
bus operators such as
FirstGroup plc are attempting to introduce the concept there.
"
Caterpillar yellow" and "high-visibility yellow" are used for highway construction equipment.
In the
United Kingdom, railway
locomotives and
multiple units typically have part or all of their ends painted yellow, for visibility.
In the
rules of the road, yellow is a
traffic light signal meaning "slow down," "caution," or "slow speed ahead." It is intermediate between
green and
red . 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 , the
referee shows a yellow card to indicate that a player has been officially cautioned.
In
American Football, a yellow flag is thrown onto the field by a referee to indicate a
penalty.
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 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 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.
- 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" 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.
- 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. In Ace Combat Zero there is the Gelb squadron, which is German for "Yellow".
- On the United States Army and in many commonwealth countries, yellow is the color of cavalry - cavalry uniforms often include a yellow stripe down the side of each leg.
Yellow pigments
See also
External links
