What Is Darkness?
"Dark" and "Absence of light" redirect here. For other uses, see Dark (disambiguation) and Absence of light (disambiguation).
The Creation of Light, by Gustave Doré
Darkness, the polar opposite colour lightness, is understood as a lack of illumination or an absence of visible light.
Humans are unable to distinguish colour in conditions of either high brightness or darkness.In conditions of insufficient light, perception is achromatic and ultimately, black.
The emotional response to darkness has generated metaphorical usages of the term in many cultures.
Scientific
Perception
Stare at the image for a minute, then look away. The image of Jesus in inverted colour will appear.
The perception of darkness differs from the mere absence of light due to the effects of after images on perception. In perceiving, the eye is active, and the part of the retina that is unstimulated produces a complementary afterimage.
Physics
In terms of physics, an object is said to be dark when it absorbs photons, causing it to appear dim compared to other objects. For example, matte black paint does not reflect much visible light and appears dark, whereas white paint reflects lots of light and appears bright. For more information see colour. An object may appear dark, but it may be bright at a frequency that humans cannot perceive.
A dark area has limited light sources, making things hard to see. Exposure to alternating light and darkness (night and day) has caused several evolutionary adaptations to darkness. When a vertebrate, like a human, enters a dark area, its pupils dilate, allowing more light to enter the eye and improving night vision. Also, the light detecting cells in the human eye (rods and cones) will regenerate more unbleached rhodopsin when adapting to darkness.
One scientific measure of darkness is the Bortle Dark-Sky Scale, which indicates the night sky's and stars' brightness at a particular location, and the observability of celestial objects at that location.
Technical
The colour of a point, on a standard 24-bit computer display, is defined by three RGB (red, green, blue) values, each ranging from 0-255. When the red, green, and blue components of a pixel are fully illuminated (255,255,255), the pixel appears white; when all three components are unilluminated (0,0,0), the pixel appears black.
THE DARK IS THE NEGATIVE SIDE THAT WE HAVE TO OVERCOME, IT IS THAT STONE OF DUST THAT LIKE GRAY CLOUD, EMPAÑA OUR BRILLO AS PEOPLE, AS HUMAN BEINGS, AS CHILDREN OF GOD. IT IS THE CONSTANT ACTION OF DARKNESS ON OUR WAY. IN FRONT OF HER, ONLY THE DIVINE SPIRIT OF THE CREATOR, TAKES CARE OF US, PROTECTS US AND COVERS US WITH HER RADIANT LUMINOSITY ...MY REGARDS, BROTHER. GOOD POST
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darkness is humanity life
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Thanks
Good post. Very interesting