Firmament Blue

Firmament

In Ancient Near Eastern cosmology, the firmament is a celestial barrier that separates the Heavenly waters above from the Earth below. In Biblical cosmology, the firmament is the vast solid dome created by God during the Genesis creation narrative to separate the primal sea into upper and lower portions so that the dry land could appear. The Quran describes a firmament above the Earth, created by God and raised; there has been some dispute whether the Quranic firmament is flat or domed.

Blue

Blue is one of the three primary colours in the RGB (additive) colour model, as well as in the RYB colour model. It lies between violet and cyan on the spectrum of visible light. The term blue generally describes colours perceived by humans observing light with a dominant wavelength between approximately 450 and 495 nanometres. The clear daytime sky and the deep sea appear blue because of an optical effect known as Rayleigh scattering. An optical effect called the Tyndall effect explains blue eyes. Distant objects appear more blue because of another optical effect called aerial perspective.

firmament

Noun

1. The vault of the heavens, where the clouds, sun, moon, and stars can be seen; the heavens, the sky.
2. The field or sphere of an activity or interest.

blue

Adjective

1. Of a blue hue.
2. Depressed, melancholic, sad.

Noun

1. The colour of the clear sky or the deep sea; the colour midway between green and violet in the visible spectrum and one of the primary additive colours.
2. Anything coloured blue, especially to distinguish it from similar objects differing only in colour.