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A dawn simulator can be used as an alarm clock. Light enters through the eyelids triggering the body to begin its wake-up cycle, including the release of cortisol, so that by the time the light is at full brightness, sleepers wake up on their own, without the need for an alarm. Most commercial alarm clocks include a "dusk" mode as well for bedtime.
Laurelin has leaves of a young green, like newly opened beech leaves trimmed with gold, and her dew is collected by the Vala of light Varda. [T 1] Each Tree, in turn, gives off light for seven hours (waxing to full brightness and then slowly waning again), with the ends of their cycles overlapping, so that at one hour each of "dawn" and "dusk ...
Matutinal animals are active only after dawn, and vespertine only before dusk. A number of factors affect the time of day an animal is active. Predators hunt when their prey is available, and prey try to avoid the times when their principal predators are at large. The temperature may be too high at midday or too low at night. [2]
Combat Flight Simulator 2; Combat Flight Simulator 3: Battle for Europe; SubLogic Flight Simulator series. FS1 Flight Simulator; Flight Simulator II (Sublogic) Microsoft Flight Simulator series Flight Simulator 1.0; Flight Simulator 2.0; Flight Simulator 3.0; Flight Simulator 4.0; Flight Simulator 5.0; Flight Simulator 5.1; Flight Simulator 95 ...
Twilight occurs according to the solar elevation angle θ s, which is the position of the geometric center of the Sun relative to the horizon. There are three established and widely accepted subcategories of twilight: civil twilight (nearest the horizon), nautical twilight, and astronomical twilight (farthest from the horizon).
An animated sequence of simulated appearances of a red flower (of a zonal geranium) and background foliage under photopic, mesopic, and scotopic conditions. The Purkinje effect or Purkinje phenomenon (Czech: [ˈpurkɪɲɛ] ⓘ; sometimes called the Purkinje shift, often pronounced / p ər ˈ k ɪ n dʒ i /) [1] is the tendency for the peak luminance sensitivity of the eye to shift toward the ...
Dusk of Dawn: An Essay Toward an Autobiography of a Race Concept is a 1940 autobiographical text by W. E. B. Du Bois that examines his life and family history in the context of contemporaneous developments in race relations.
In the 2021 television series adaptation Foundation, the 12,000-year-old Empire has been ruled for 400 years by a revolving triumvirate of Cleon I clones: Brother Day, a Cleon in his prime; Brother Dusk, a retired and aging Cleon who serves in an advisory role; and Brother Dawn, a young Cleon being trained to succeed Brother Day. [1]