Clear Aqua

Aqua (satellite)

Aqua is a NASA scientific research satellite in orbit around the Earth, studying the precipitation, evaporation, and cycling of water. It is the second major component of the Earth Observing System (EOS) preceded by Terra and followed by Aura.

Transparency and translucency

In the field of optics, transparency is the physical property of allowing light to pass through the material without appreciable scattering of light. On a macroscopic scale, the photons can be said to follow Snell's law. Translucency is the physical property of allowing light to pass through the material. It allows light to pass through but the light does not necessarily follow Snell's law on the macroscopic scale; the photons may be scattered at either of the two interfaces, or internally, where there is a change in the index of refraction. In other words, a translucent material is made up of components with different indices of refraction, while a transparent material is made up of components with a uniform index of refraction. Transparent materials appear clear, with the overall appearance of one color, or any combination leading up to a brilliant spectrum of every color. The opposite property of translucency is opacity. Other categories of visual appearance, related to the perception of regular or diffuse reflection and transmission of light, have been organized under the concept of cesia in an order system with three variables, including transparency, translucency and opacity among the involved aspects.

Aqua (color)

Aqua is a variation of the color cyan. The normalized color coordinates for the two web colors named aqua and cyan are identical. It was one of the three secondary colors of the RGB color model used on computer and television displays. In the HSV color wheel aqua is precisely halfway between blue and green. However, aqua is not the same as the primary subtractive color named process cyan used in printing.

clear

Adjective

1. Transparent in colour.
2. Bright; luminous; not dark or obscured.

Adverb

1. All the way; entirely.
2. Not near something or touching it.

aqua

Noun

1. Water (as a compound).
2. A shade of colour, usually a mix of blue and green, most often similar to the colour cyan, though also sometimes closer to turquoise or aquamarine.

Adjective

1. Of a greenish-blue colour.