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  2. Atmospheric optics - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_optics

    Atmospheric opticsis "the study of the opticalcharacteristics of the atmosphereor products of atmospheric processes .... [including] temporal and spatial resolutions beyond those discernible with the naked eye".[1] Meteorological opticsis "that part of atmospheric optics concerned with the study of patterns observable with the naked eye".[2] Nevertheless, the two terms are sometimes used ...

  3. Knowledge argument - Wikipedia

    en.wikipedia.org/wiki/Knowledge_argument

    Knowledge argument. The knowledge argument (also known as Mary's Room or Mary the super-scientist) is a philosophical thought experiment proposed by Frank Jackson in his article "Epiphenomenal Qualia " (1982) and extended in "What Mary Didn't Know" (1986). The experiment describes Mary, a scientist who exists in a black-and-white world where ...

  4. Visible spectrum - Wikipedia

    en.wikipedia.org/wiki/Visible_spectrum

    White light is dispersed by a prism into the colors of the visible spectrum. The visible spectrum is the band of the electromagnetic spectrum that is visible to the human eye. Electromagnetic radiation in this range of wavelengths is called visible light (or simply light). The optical spectrum is sometimes considered to be the same as the ...

  5. Visual perception - Wikipedia

    en.wikipedia.org/wiki/Visual_perception

    The resulting perception is also known as vision, sight, or eyesight (adjectives visual, optical, and ocular, respectively). The various physiological components involved in vision are referred to collectively as the visual system, and are the focus of much research in linguistics, psychology, cognitive science, neuroscience, and molecular biology, collectively referred to as vision science .

  6. If You See a Purple Porch Light, This Is What It Means - AOL

    www.aol.com/lifestyle/see-purple-porch-light...

    Here's the meaning of purple porch lights. The post If You See a Purple Porch Light, This Is What It Means appeared first on Reader's Digest.

  7. Violet (color) - Wikipedia

    en.wikipedia.org/wiki/Violet_(color)

    Violet is closely associated with purple. In optics, violet is a spectral color (referring to the color of different single wavelengths of light), whereas purple is the color of various combinations of red and blue (or violet) light, [5] [6] some of which humans perceive as similar to violet.

  8. Scotopic vision - Wikipedia

    en.wikipedia.org/wiki/Scotopic_vision

    Scotopic vision In the study of visual perception, scotopic vision (or scotopia) is the vision of the eye under low- light conditions. [1] The term comes from the Greek skotos, meaning 'darkness', and -opia, meaning 'a condition of sight'. [2] In the human eye, cone cells are nonfunctional in low visible light. Scotopic vision is produced exclusively through rod cells, which are most sensitive ...

  9. Is Seeing a Spider a Good Omen? What To Know About the ... - AOL

    www.aol.com/lifestyle/seeing-spider-good-omen...

    4 Spiritual Meanings of Spiders. 1. Destiny. Again, spiders are seen as "weavers of fate." 2. Destruction. Popescu shares about the multifaceted spider symbols: "As the web can ensnare, they may ...