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Photoperiod is the change of day length around the seasons. The rotation of the earth around its axis produces 24 hour changes in light (day) and dark (night) cycles on earth. The length of the light and dark in each phase varies across the seasons due to the tilt of the earth around its axis.
In chronobiology, the circannual cycle is characterized by biological processes and behaviors recurring on an approximate annual basis, spanning a period of about one year. This term is particularly relevant in the analysis of seasonal environmental changes and their influence on the physiology, behavior, and life cycles of organisms.
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 ...
Rice husk ash has long been used in ceramic glazes in rice growing regions in the Far East, e.g. China and Japan. [2] Being about 95% silica, it is an easy way of introducing the necessary silica into the glaze, and the small particle size helps with an early melt of the glaze.
Luke Shaw and Landon Juern directed the music video for "Daylight", which was released alongside it and features the elements fire, water, air, and ash. [2] The video starts with Kushner chopping wood in the forest. He is then shown walking with a boy down a church aisle, whose face (along with other people in the pews) has been blurred.
The song appears in the video game NBA Live 10 and is the only non-hip hop song on the soundtrack. The "Troublemaker" Remix of the song, featuring De La Soul, is included on the soccer video game FIFA 10, Need for Speed: Nitro, and also included in NBA Live 10. [1] The song also appears in The Sims 3: World Adventures, translated into Simlish.
Husk (or hull) in botany is the outer shell or coating of a seed. In the United States, the term husk often refers to the leafy outer covering of an ear of maize (corn) as it grows on the plant. Literally, a husk or hull includes the protective outer covering of a seed, fruit , or vegetable .
Hudson is credited with proposing modern-day daylight saving time. [2] His shift-work job gave him leisure time to collect insects, and led him to value after-hours daylight. [ 3 ] In 1895, he presented a paper to the Wellington Philosophical Society proposing a two-hour daylight-saving shift, [ 4 ] and after considerable interest was expressed ...