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  2. Light effects on circadian rhythm - Wikipedia

    en.wikipedia.org/wiki/Light_effects_on_circadian...

    The WELL Building standard was designed for "advancing health and well-being in buildings globally" [26] Part of the standard is the implementation of Credit 54: Circadian Lighting Design. Specific thresholds for different office areas are designated in order to achieve credits. Light is measured at 1.2 m above the finished floor for all areas.

  3. Circadian rhythm - Wikipedia

    en.wikipedia.org/wiki/Circadian_rhythm

    A circadian rhythm (/ s ər ˈ k eɪ d i ə n /), or circadian cycle, is a natural oscillation that repeats roughly every 24 hours.Circadian rhythms can refer to any process that originates within an organism (i.e., endogenous) and responds to the environment (is entrained by the environment).

  4. Circadian clock - Wikipedia

    en.wikipedia.org/wiki/Circadian_clock

    A circadian clock, or circadian oscillator, also known as one’s internal alarm clock is a biochemical oscillator that cycles with a stable phase and is synchronized with solar time. Such a clock's in vivo period is necessarily almost exactly 24 hours (the earth's current solar day). In most living organisms, internally synchronized circadian ...

  5. Music and the stars: A Grand Canyon astronomer's guide to awe

    www.aol.com/news/music-stars-grand-canyon...

    It disrupts our circadian rhythms, which dictate our sleep and wake cycles, and has a deleterious effect on plant and animal life. The astronomer David Koerner thinks it also affects our sense of ...

  6. Light in painting - Wikipedia

    en.wikipedia.org/wiki/Light_in_painting

    Port with the disembarkation of Cleopatra in Tarsus (1642), by Claude Lorrain, Musée du Louvre, Paris. Light in painting fulfills several objectives, both plastic and aesthetic: on the one hand, it is a fundamental factor in the technical representation of the work, since its presence determines the vision of the projected image, as it affects certain values such as color, texture and volume ...

  7. List of art movements - Wikipedia

    en.wikipedia.org/wiki/List_of_art_movements

    See Art periods for a chronological list. This is a list of art movements in alphabetical order. These terms, helpful for curricula or anthologies, evolved over time to group artists who are often loosely related. Some of these movements were defined by the members themselves, while other terms emerged decades or centuries after the periods in ...

  8. Zeitgeber - Wikipedia

    en.wikipedia.org/wiki/Zeitgeber

    Early research into circadian rhythms demonstrated that, when humans are without zeitgebers, or in constant lighting conditions, they have a "free running" period of 24.9 hours. [7] In this experiment, humans were in an underground, sound-proof bunker where the lights were continuously on.

  9. Phase response curve - Wikipedia

    en.wikipedia.org/wiki/Phase_response_curve

    Phase response curves for light and for melatonin administration. In humans and animals, there is a regulatory system that governs the phase relationship of an organism's internal circadian clock to a regular periodicity in the external environment (usually governed by the solar day).