While some gems may appear colorless in daylight, under ultraviolet light they can burn a bright blue or green.
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IBM's researchers have also patented a related nano-patterning method that uses fluorescent spheres that can take the color red, blue or green.
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They were willing to change the accent color from red to blue, or maybe green if we pushed them.
Each disc is covered in a transparent plastic coating (either blue, green, yellow or red) which lets daylight filter through.
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When the footage was first shot, each frame was run consecutively through red, green or blue gels, and the process needed to be reversed during projection to reveal the color.
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The first permanent colour photograph was taken by Thomas Sutton who was working with Clerk Maxwell and is a composite of three black and white pictures, each one taken through a red, green or blue filter.
In a series of five studies, about 150 heterosexual men (homosexual men and those with red-green color blindness were excluded) rated photographs of women framed in red, white, gray, green, or blue, or with the woman in a red or blue shirt.
With features typical of the Konkani people from southwest India (light brown complexion and often green, grey or blue eyes after centuries of interaction with European traders), Raut "could be from anywhere, " says Bidapa.
Custom shops can cut out logos on the side and light them with neon rope lights, add blue-green LEDs to the fans inside or give the box a custom paint job.
Blue and yellow tones work effectively but not red or green because of canine colour-blindness.
Today, data scientist get well trained or perhaps over trained on the blue track but the green track often eludes them, mostly because it is not taught as a science in the universities.
Generally LED bulbs use either a combination red, green and blue LEDs to create white light, or they use a phosphor coating (more common) in combination with a blue LED.
The T28 is equipped with a tiny (to today's standards) rectangular 1.4-inch monochrome screen (101 x 33 pixels or three lines of 12 characters) with a blue-ish green backlight.
Going Green can mean sacrifices, like driving less, paying more or enduring the eerie blue of compact fluorescent bulbs.
When students were given creativity tests, those whose test-cover pages had a green background gave more creative answers than those whose pages were white, blue, red or gray.
Capt Barrie's "green-on-blue" death brings the number of British servicemen killed by Afghan soldiers or police to 14 this year, compared to just one in 2011, three in 2010, and five in 2009.
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