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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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There’s also a throwback to the FM clock radio - just press radio button on clock top and touch (+) to set station 12-HOUR and 24-HOUR DIGITAL ALARM CLOCK - Wide LED clock face touchscreen shows ...
Telechron electric alarm clock. Telechron alarm clocks are particularly popular with collectors. Until about 1940, the overwhelming majority of Telechron alarm clocks had bell alarms. The entire mechanism was enclosed in a bell housing of steel. Atop the clock's coil was a metal strip that vibrated at 60 cycles per second when the alarm was ...
See It! Get the La Crosse Technology Soluna-S Light Sunrise Black LCD Alarm Clock with Temperature and USB Port for just $23 (originally $36) at Walmart!. According to one customer, “This ...
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 ...
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