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  2. Darkness - Wikipedia

    en.wikipedia.org/wiki/Darkness

    Darkness is the condition resulting from a lack of illumination, or an absence of visible light. Human vision is unable to distinguish colors in conditions of very low luminance because the hue -sensitive photoreceptor cells on the retina are inactive when light levels are insufficient, in the range of visual perception referred to as scotopic ...

  3. Polar night - Wikipedia

    en.wikipedia.org/wiki/Polar_night

    There are multiple ways to define twilight, the gradual transition to and from darkness when the Sun is below the horizon. [2] "Civil" twilight occurs when the Sun is between 0 and 6 degrees below the horizon. Nearby planets like Venus and bright stars like Sirius are visible during this period. [3] "

  4. Eigengrau - Wikipedia

    en.wikipedia.org/wiki/Eigengrau

    For example, the night sky looks darker than Eigengrau because of the contrast provided by the stars. Contrast threshold data, collected by Blackwell [5] and plotted by Crumey, shows Eigengrau occurring at adaptation luminances below approximately 10 − 5 cd m −2 (25.08 mag arcsec −2). [6] This is a limiting case of Ricco's law.

  5. Visual snow syndrome - Wikipedia

    en.wikipedia.org/wiki/Visual_snow_syndrome

    Perceiving visual static, flickering, or graininess on monochrome colors, in the sky, or in darkness can be a normal phenomenon associated with neural noise, amplified in the absence of bright visual stimuli. This effect is known as the Ganzfeld Effect. In conditions of low illumination, especially in dimly lit environments, this phenomenon is ...

  6. Night sky - Wikipedia

    en.wikipedia.org/wiki/Night_sky

    Paranal Observatory nights. [3] The concept of noctcaelador tackles the aesthetic perception of the night sky. [4]Depending on local sky cloud cover, pollution, humidity, and light pollution levels, the stars visible to the unaided naked eye appear as hundreds, thousands or tens of thousands of white pinpoints of light in an otherwise near black sky together with some faint nebulae or clouds ...

  7. Robert Eggers on Updating 'Nosferatu' - AOL

    www.aol.com/entertainment/robert-eggers-updating...

    Eggers once again focuses on a lonely, young female protagonist who embraces darkness in the hopes of assuaging her innermost desires in his fourth feature, Nosferatu, in theaters Dec. 25 ...

  8. Makeup Artists Say These Looks Will Be Outdated in 2025 - AOL

    www.aol.com/lifestyle/makeup-artists-looks...

    In 2025, contour looks more like a gentle swipe of a light bronzer versus a whole dedicated contour product. It's easier, and much more simplistic, requiring far fewer steps and products.

  9. Sky brightness - Wikipedia

    en.wikipedia.org/wiki/Sky_brightness

    During twilight (the duration after sunset or before sunrise until or since, respectively, the full darkness of night), the situation is more complicated, and a further differentiation is required. Twilight (both dusk and dawn ) is divided into three 6° segments that mark the Sun's position below the horizon.