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Cerulean ( / səˈruːliən / ), also spelled caerulean, is a variety of the hue of blue that may range from a light azure blue to a more intense sky blue, and may be mixed as well with the hue of green. The first recorded use of cerulean as a colour name in English was in 1590. [ 3] The word is derived from the Latin word caeruleus, "dark blue ...
Cyan (/ ˈ s aɪ. ə n,-æ n /) [1] [2] [3] is the color between blue and green on the visible spectrum of light. [4] [5] It is evoked by light with a predominant wavelength between 500 and 520 nm, between the wavelengths of green and blue.
The Nika riots ( Greek: Στάσις τοῦ Νίκα, romanized : Stásis toû Níka ), Nika revolt or Nika sedition took place against Byzantine emperor Justinian I in Constantinople over the course of a week in 532 CE. They are often regarded as the most violent riots in the city's history, with nearly half of Constantinople being burned or ...
Blue–green distinction in language. The notion of "green" in modern European languages corresponds to light wavelengths of about 520–570 nm, but many historical and non-European languages make other choices, e.g. using a term for the range of ca. 450–530 nm ("blue/green") and another for ca. 530–590 nm ("green/yellow").
Ryle said the meteor flashed in the sky for only a few seconds and appeared to be blue and green. Most reports came from Ohio and Kentucky, but there were some even from Georgia, North Carolina ...
Color of chemicals. The color of chemicals is a physical property of chemicals that in most cases comes from the excitation of electrons due to an absorption of energy performed by the chemical. The study of chemical structure by means of energy absorption and release is generally referred to as spectroscopy .
Colored fire. A campfire burning with blue and green flame colorants. Different colors of natural flame from a bunsen burner, without additives. Colored fire is a common pyrotechnic effect used in stage productions, fireworks and by fire performers the world over. Generally, the color of a flame may be red, orange, blue, yellow, or white, and ...
In the RGB model, the primary colors are red, green, and blue. The complementary primary–secondary combinations are red – cyan, green – magenta, and blue – yellow. In the RGB color model, the light of two complementary colors, such as red and cyan, combined at full intensity, will make white light, since two complementary colors contain ...