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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.
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Troubleshooting is a form of problem solving, often applied to repair failed products or processes on a machine or a system. It is a logical, systematic search for the source of a problem in order to solve it, and make the product or process operational again. Troubleshooting is needed to identify the symptoms.
The sunrise problem illustrates the difficulty of using probability theory when evaluating the plausibility of statements or beliefs. According to the Bayesian interpretation of probability , probability theory can be used to evaluate the plausibility of the statement, "The sun will rise tomorrow."
For illustration, sunsets and sunrises are at a much later "official" time at the western edge of a time-zone, compared to sunrise and sunset times at the eastern edge. If a sundial is located at, say, a longitude 5° west of the reference longitude, then its time will read 20 minutes slow, since the Sun appears to revolve around the Earth at ...
Commercial rubidium clocks are less accurate than caesium atomic clocks, which serve as primary frequency standards, so a rubidium clock is usually used as a secondary frequency standard. Commercial rubidium frequency standards operate by disciplining a crystal oscillator to the rubidium hyperfine transition of 6.8 GHz ( 6 834 682 610 .904 Hz ).
Sunrise: A Song of Two Humans (also known as Sunrise) is a 1927 American synchronized sound romantic drama directed by German director F. W. Murnau (in his American film debut) and starring George O'Brien, Janet Gaynor, and Margaret Livingston. The film's plot follows a married farmer (O'Brien) who falls for a woman vacationing from the city ...
Sendak was born in Brooklyn, New York, to Polish Jewish immigrants Sadie (née Schindler) and Philip Sendak, a dressmaker. [3] [4] [5] Maurice said that his childhood was a "terrible situation" due to the death of members of his extended family during the Holocaust which introduced him at a young age to the concept of mortality. [6]