0_Wizard
The colors blue and yellow combine to create my favorite color, green.
Green is the color between blue and yellow on the visible spectrum.
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Green
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Color psychology
Color psychology is the study of hues as a determinant of human behavior. Color influences perceptions that are not obvious, such as the taste of food. Colours can also enhance the effectiveness of placebos. For example, red or orange pills are generally used as stimulants. Colour can indeed influence a person; however, it is important to remember that these effects differ between people. Factors such as gender, age, and culture can influence how an individual perceives color. For instance, heterosexual men tend to report that red outfits enhance female attractiveness, while heterosexual females deny any outfit color impacting that of men.
Pink
Pink is a pale red color that is named after a flower of the same name. It was first used as a color name in the late 17th century. According to surveys in Europe and the United States, pink is the color most often associated with charm, politeness, sensitivity, tenderness, sweetness, childhood, femininity and the romantic. It is associated with chastity and innocence when combined with white, but associated with eroticism and seduction when combined with purple or black. The color pink is named after the flowers, pinks, flowering plants in the genus "Dianthus," and derives from the frilled edge of the flowers.
Yellow
Yellow is the color between green and orange on the spectrum of visible light. It is evoked by light with a dominant wavelength of roughly 570590 nm. It is a primary color in subtractive color systems, used in painting or color printing. In the RGB color model, used to create colors on television and computer screens, yellow is a secondary color made by combining red and green at equal intensity. Carotenoids give the characteristic yellow color to autumn leaves, corn, canaries, daffodils, and lemons, as well as egg yolks, buttercups, and bananas. They absorb light energy and protect plants from photodamage.
Grey
Grey (British English) or gray (American English; see spelling differences) is an intermediate color between black and white. It is a neutral or achromatic color, meaning literally that it is a color "without color." It is the color of a cloud-covered sky, of ash and of lead. The first recorded use of "grey" as a color name in the English language was in AD 700. "Grey" is the dominant spelling in European and Commonwealth English, although "gray" remained in common usage in the UK until the second half of the 20th century. "Gray" has been the preferred American spelling since approximately 1825, although "grey" is an accepted variant.
Brown
Brown is a composite color. In the CMYK color model used in printing or painting, brown is made by combining red, black, and yellow, or red, yellow, and blue. In the RGB color model used to project colors onto television screens and computer monitors, brown is made by combining red and green, in specific proportions. The brown color is seen widely in nature, in wood, soil, human hair color, eye color and skin pigmentation. Brown is the color of dark wood or rich soil. According to public opinion surveys in Europe and the United States, brown is the least favorite color of the public; the color is most often associated with plainness, the rustic, feces, and poverty.
Purple
Purple is a color intermediate between blue and red. It is similar to violet, but unlike violet, which is a spectral color with its own wavelength on the visible spectrum of light, purple is a composite color made by combining red and blue. According to surveys in Europe and the U.S., purple is the color most often associated with royalty, magic, mystery and piety. When combined with pink, it is associated with eroticism, femininity and seduction. Purple was the color worn by Roman magistrates; it became the imperial color worn by the rulers of the Byzantine Empire and the Holy Roman Empire, and later by Roman Catholic bishops.
List of Monster High characters
Mattel's fashion doll franchise "Monster High" features a variety of fictional characters, many of whom are students at the titular high school. The female characters are classified as Ghouls and the male characters are classified as Mansters. The characters are generally the sons and daughters, or related to monsters that have been popularized in fiction. The franchise's official website identifies six of the characters as Original Ghouls. In addition to the listed Ghouls and Mansters, there are other characters who have been introduced in the franchise's related media including the web/video and book series.
1_Apprentice
Green is a pretty color. I know know of a couple of shades of green but I wonder how many shades of green there really are?
0_Wizard
That is a good question, probably hundreds. There are several minerals that are green in color such as emeralds! 
Several minerals have a green color, including the emerald, which is colored green by its chromium content.
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Green
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Emerald
Emerald is a gemstone and a variety of the mineral beryl (BeAl(SiO)) colored green by trace amounts of chromium and sometimes vanadium. Beryl has a hardness of 7.5–8 on the Mohs scale. Most emeralds are highly included, so their toughness (resistance to breakage) is classified as generally poor. Emerald is a cyclosilicate. The word "emerald" is derived (via and ), from Vulgar Latin: "esmaralda"/"esmaraldus", a variant of Latin "smaragdus", which originated in (smaragdos; "green gem"). Emeralds, like all colored gemstones, are graded using four basic parameters–the four "C"s of connoisseurship: "color", "clarity," "cut" and "carat weight".
Beryl
Beryl is a mineral composed of beryllium aluminium cyclosilicate with the chemical formula BeAl(SiO). Well-known varieties of beryl include emerald and aquamarine. Naturally occurring, hexagonal crystals of beryl can be up to several meters in size, but terminated crystals are relatively rare. Pure beryl is colorless, but it is frequently tinted by impurities; possible colors are green, blue, yellow, red (the rarest), and white. The name "beryl" is derived (via , , and ) from Greek βήρυλλος "beryllos" which referred to a "precious blue-green color-of-sea-water stone"; akin to Prakrit "verulia", "veluriya" ("beryl").
Colombian emeralds
Emeralds are green precious gemstones that are mined in various geological settings. They are minerals in the beryl group of silicates. For more than 4,000 years, emeralds have been among the most valuable of all jewels on Earth. Colombia, located on the continent of South America, is the country that mines and produces the most emeralds for the global market. It is estimated that Colombia accounts for 70-90% of the world's emerald market. While commercial grade emeralds are quite plentiful, fine and extra fine quality emeralds are extremely rare. Colombian emeralds over 50 carat can cost much more than diamonds of the same size.
Green
Green is the color between blue and yellow on the visible spectrum. It is evoked by light which has a dominant wavelength of roughly 495570 nm. In subtractive color systems, used in painting and color printing, it is created by a combination of yellow and blue, or yellow and cyan; in the RGB color model, used on television and computer screens, it is one of the additive primary colors, along with red and blue, which are mixed in different combinations to create all other colors. By far the largest contributor to green in nature is chlorophyll, the chemical by which plants photosynthesize and convert sunlight into chemical energy.
Aeolis quadrangle
The Aeolis quadrangle is one of a series of 30 quadrangle maps of Mars used by the United States Geological Survey (USGS) Astrogeology Research Program. The Aeolis quadrangle is also referred to as MC-23 (Mars Chart-23). The Aeolis quadrangle covers 180° to 225° W and 0° to 30° south on Mars, and contains parts of the regions Elysium Planitia and Terra Cimmeria. A small part of the Medusae Fossae Formation lies in this quadrangle. The name refers to the name of a floating western island of Aiolos, the ruler of the winds. In Homer's account, Odysseus received the west wind Zephyr here and kept it in bags, but the wind got out.
Sonic the Hedgehog
While the first games in the series were side-scrolling platform games, later games expanded the series into various other genre and sub-series, such as "Mario & Sonic at the Olympic Games" and the "Sonic Boom" series. By 2016, the series had sold over 80 million physical copies of games, and over 350 million units when combining packaged game software with mobile phone downloads. Outside of video games, the franchise has also been spun out into other media, including cartoons, anime, and a long-running comic book series, recognized as the longest running based on a video game by Guinness World Records.
Water on Mars
Almost all water on Mars today exists as ice, though it also exists in small quantities as vapor in the atmosphere and occasionally as low-volume liquid brines in shallow Martian soil. The only place where water ice is visible at the surface is at the north polar ice cap. Abundant water ice is also present beneath the permanent carbon dioxide ice cap at the Martian south pole and in the shallow subsurface at more temperate certain conditions. More than five million cubic kilometers of ice have been identified at or near the surface of modern Mars, enough to cover the whole planet to a depth of .
1_Apprentice
Emeralds are pretty. What other minerals are green?
0_Wizard
Oh so many, but I forget, Emeralds are the most common ones though. I bet you know that green has a long historical tradition as the color of Ireland!
It also has a long historical tradition as the color of Ireland and of Gaelic culture.
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Emerald
self_0_Emerald
Green
Green is the color between blue and yellow on the visible spectrum. It is evoked by light which has a dominant wavelength of roughly 495570 nm. In subtractive color systems, used in painting and color printing, it is created by a combination of yellow and blue, or yellow and cyan; in the RGB color model, used on television and computer screens, it is one of the additive primary colors, along with red and blue, which are mixed in different combinations to create all other colors. By far the largest contributor to green in nature is chlorophyll, the chemical by which plants photosynthesize and convert sunlight into chemical energy.
Emerald
Emerald is a gemstone and a variety of the mineral beryl (BeAl(SiO)) colored green by trace amounts of chromium and sometimes vanadium. Beryl has a hardness of 7.5–8 on the Mohs scale. Most emeralds are highly included, so their toughness (resistance to breakage) is classified as generally poor. Emerald is a cyclosilicate. The word "emerald" is derived (via and ), from Vulgar Latin: "esmaralda"/"esmaraldus", a variant of Latin "smaragdus", which originated in (smaragdos; "green gem"). Emeralds, like all colored gemstones, are graded using four basic parameters–the four "C"s of connoisseurship: "color", "clarity," "cut" and "carat weight".
Colombian emeralds
Emeralds are green precious gemstones that are mined in various geological settings. They are minerals in the beryl group of silicates. For more than 4,000 years, emeralds have been among the most valuable of all jewels on Earth. Colombia, located on the continent of South America, is the country that mines and produces the most emeralds for the global market. It is estimated that Colombia accounts for 70-90% of the world's emerald market. While commercial grade emeralds are quite plentiful, fine and extra fine quality emeralds are extremely rare. Colombian emeralds over 50 carat can cost much more than diamonds of the same size.
Craps
Craps is a dice game in which the players make wagers on the outcome of the roll, or a series of rolls, of a pair of dice. Players may wager money against each other (playing "street craps", also known as "shooting dice," "rolling bones," or any combination thereof) or a bank (playing "casino craps", also known as "table craps", or often just "craps"). Because it requires little equipment, "street craps" can be played in informal settings. Craps developed from a simplification of the early English game of "hazard". Its origins are complex and may date to the Crusades, later being influenced by French gamblers.
List of Sonic the Hedgehog characters
The "Sonic the Hedgehog" video game franchise began in 1991 with the game "Sonic the Hedgehog" for the Sega Genesis, which pitted a blue anthropomorphic hedgehog named Sonic against a rotund male human villain named Doctor Eggman (or Doctor Ivo Robotnik). The sequel, "Sonic 2", gave Sonic a fox friend named Tails. Shortly afterward, "Sonic CD" introduced Amy Rose, a female hedgehog with a persistent crush on Sonic, and "Sonic 3" introduced Knuckles the Echidna, Sonic's rival and, later, friend. All five of these have remained major characters and appeared in dozens of games. The series has introduced dozens of additional recurring characters over the years.
Sonic the Hedgehog
While the first games in the series were side-scrolling platform games, later games expanded the series into various other genre and sub-series, such as "Mario & Sonic at the Olympic Games" and the "Sonic Boom" series. By 2016, the series had sold over 80 million physical copies of games, and over 350 million units when combining packaged game software with mobile phone downloads. Outside of video games, the franchise has also been spun out into other media, including cartoons, anime, and a long-running comic book series, recognized as the longest running based on a video game by Guinness World Records.
Beryl
Beryl is a mineral composed of beryllium aluminium cyclosilicate with the chemical formula BeAl(SiO). Well-known varieties of beryl include emerald and aquamarine. Naturally occurring, hexagonal crystals of beryl can be up to several meters in size, but terminated crystals are relatively rare. Pure beryl is colorless, but it is frequently tinted by impurities; possible colors are green, blue, yellow, red (the rarest), and white. The name "beryl" is derived (via , , and ) from Greek βήρυλλος "beryllos" which referred to a "precious blue-green color-of-sea-water stone"; akin to Prakrit "verulia", "veluriya" ("beryl").
1_Apprentice
I have heard a little about it or know that it is associated with Ireland. Don't know the long story behind why green is a long historical tradition there, though. Could you fill me in?
0_Wizard
I sadly do not know either, I am merely an expert on green! Another piece of history on green is that back in the Middle Ages and Renaissance, the color was associated with merchants, bankers and the gentry.
For this reason, the costume of the "Mona Lisa" by Leonardo da Vinci and the benches in the British House of Commons are green while those in the House of Lords are red.
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Green
Green is the color between blue and yellow on the visible spectrum. It is evoked by light which has a dominant wavelength of roughly 495570 nm. In subtractive color systems, used in painting and color printing, it is created by a combination of yellow and blue, or yellow and cyan; in the RGB color model, used on television and computer screens, it is one of the additive primary colors, along with red and blue, which are mixed in different combinations to create all other colors. By far the largest contributor to green in nature is chlorophyll, the chemical by which plants photosynthesize and convert sunlight into chemical energy.
Paris in the Middle Ages
In the 10th century, Paris was a provincial cathedral city of little political or economic significance, but under the kings of the Capetian dynasty who ruled France between 987 and 1328, it developed into an important commercial and religious center and the seat of the royal administration of the country. The Île de la Cité became the site of the royal palace and the new cathedral of Notre-Dame, begun in 1163. The Left Bank was occupied by important monasteries, including the Abbey of Saint-Germain-des-Prés and the Abbey of St Genevieve. In the late 12th century, the collection of colleges on the left bank became one of the leading universities in Europe.
Red
Red is the colour at the end of the visible spectrum of light, next to orange and opposite violet. It has a dominant wavelength of approximately 625–740 nanometres. It is a primary color in the RGB color model and the CMYK color model, and is the complementary color of cyan. Reds range from the brilliant yellow-tinged scarlet and vermillion to bluish-red crimson, and vary in shade from the pale red pink to the dark red burgundy. The red sky at sunset results from Rayleigh scattering, while the red color of the Grand Canyon and other geological features is caused by hematite or red ochre, both forms of iron oxide.
Renaissance
The Renaissance (, ) was a period in European history, from the 14th to the 17th century, regarded as the cultural bridge between the Middle Ages and modern history. It started as a cultural movement in Italy in the Medieval period and later spread to the rest of Europe, marking the beginning of the Modern age. The intellectual basis of the Renaissance was its own invented version of humanism, derived from the concept of Roman Humanitas and the rediscovery of classical Greek philosophy, such as that of Protagoras, who said that "Man is the measure of all things." This new thinking became manifest in art, architecture, politics, science and literature.
Medieval cuisine
Medieval cuisine includes foods, eating habits, and cooking methods of various European cultures during the Middle Ages, which lasted from the fifth to the fifteenth century. During this period, diets and cooking changed less than they did in the early modern period that followed, when those changes helped lay the foundations for modern European cuisine. Cereals remained the most important staple during the early Middle Ages as rice was introduced late, and the potato was only introduced in 1536, with a much later date for widespread consumption. Barley, oat and rye were eaten by the poor. Wheat was for the governing classes.
Gentry
Gentry (from Old French "genterie", from "gentil", "high-born, noble") are "well-born, genteel and well-bred people" of high social class, especially in the past. "Gentry", in its widest connotation, refers to people of good social position connected to landed estates (see manorialism), upper levels of the clergy, and "gentle" families of long descent who never obtained the official right to bear a coat of arms. The historical term "gentry" by itself, so Peter Coss argues, is a construct that historians have applied loosely to rather different societies. Any particular model may not fit a specific society, yet a single definition nevertheless remains desirable.
Middle Ages
In the history of Europe, the Middle Ages (or Medieval Period) lasted from the 5th to the 15th century. It began with the fall of the Western Roman Empire and merged into the Renaissance and the Age of Discovery. The Middle Ages is the middle period of the three traditional divisions of Western history: classical antiquity, the medieval period, and the modern period. The medieval period is itself subdivided into the Early, High, and Late Middle Ages. Population decline, counterurbanisation, invasion, and movement of peoples, which had begun in Late Antiquity, continued in the Early Middle Ages.
1_Apprentice
I did not realize the color green was associated with all of that. I wonder what other unique things it is associated with? 
0_Wizard
Here's one a good one! The largest contributor to green in nature is chlorophyll in plants! They photosynthesize and convert sunlight into chemical energy.
By far the largest contributor to green in nature is chlorophyll, the chemical by which plants photosynthesize and convert sunlight into chemical energy.
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Photosynthesis
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms' activities (energy transformation). This chemical energy is stored in carbohydrate molecules, such as sugars, which are synthesized from carbon dioxide and water – hence the name "photosynthesis", from the Greek φῶς, "phōs", "light", and σύνθεσις, "synthesis", "putting together". In most cases, oxygen is also released as a waste product. Most plants, most algae, and cyanobacteria perform photosynthesis; such organisms are called photoautotrophs.
Green
Green is the color between blue and yellow on the visible spectrum. It is evoked by light which has a dominant wavelength of roughly 495570 nm. In subtractive color systems, used in painting and color printing, it is created by a combination of yellow and blue, or yellow and cyan; in the RGB color model, used on television and computer screens, it is one of the additive primary colors, along with red and blue, which are mixed in different combinations to create all other colors. By far the largest contributor to green in nature is chlorophyll, the chemical by which plants photosynthesize and convert sunlight into chemical energy.
Chloroplast
Chloroplasts are organelles, specialized compartments, in plant and algal cells. Their discovery inside plant cells is usually credited to Julius von Sachs (1832–1897), an influential botanist and author of standard botanical textbooks – sometimes called "The Father of Plant Physiology". The main role of chloroplasts is to conduct photosynthesis, where the photosynthetic pigment chlorophyll captures the energy from sunlight and converts it and stores it in the energy-storage molecules ATP and NADPH while freeing oxygen from water. They then use the ATP and NADPH to make organic molecules from carbon dioxide in a process known as the Calvin cycle.
Plant
Plants are mainly multicellular, predominantly photosynthetic eukaryotes of the kingdom Plantae. In one sense (circumscription), the term refers to green plants, which form an unranked clade Viridiplantae (Latin for "green plants"). This includes the flowering plants, conifers and other gymnosperms, ferns, clubmosses, hornworts, liverworts, mosses and the green algae, and excludes the red and brown algae. Historically, plants formed one of two kingdoms covering all living things that were not animals, and both algae and fungi were treated as plants; however all current definitions of "plant" exclude the fungi and some algae, as well as the prokaryotes (the archaea and bacteria).
Botany
Botany, also called plant science(s), plant biology or phytology, is the science of plant life and a branch of biology. A botanist or plant scientist is a scientist who specialises in this field. The term "botany" comes from the Ancient Greek word ("botanē") meaning "pasture", "grass", or "fodder"; is in turn derived from ("boskein"), "to feed" or "to graze". Traditionally, botany has also included the study of fungi and algae by mycologists and phycologists respectively, with the study of these three groups of organisms remaining within the sphere of interest of the International Botanical Congress.
Chlorophyll
Chlorophyll (also chlorophyl) is any of several related green pigments found in cyanobacteria and the chloroplasts of algae and plants. Its name is derived from the Greek words χλωρός, "chloros" ("green") and φύλλον, "phyllon" ("leaf"). Chlorophyll is essential in photosynthesis, allowing plants to absorb energy from light. Chlorophylls absorb light most strongly in the blue portion of the electromagnetic spectrum as well as the red portion. Conversely, it is a poor absorber of green and near-green portions of the spectrum, which it reflects, producing the green color of chlorophyll-containing tissues.
List of ecoregions in North America (CEC)
This list of ecoregions of North America provides an overview of North American ecoregions designated by the Commission for Environmental Cooperation (CEC) in its North American Environmental Atlas. It should not be confused with Wikipedia articles based on the classification system developed by the World Wildlife Fund, such as List of ecoregions (WWF) and Lists of ecoregions by country. The commission was established in 1994 by the member states of Canada, Mexico, and the United States to address regional environmental concerns under the North American Agreement on Environmental Cooperation (NAAEC), the environmental side accord to the North American Free Trade Agreement (NAFTA).