This is the number-one selling kid's clock on Amazon, with more than 2,500 reviews. Parents rave about the restoration of their sleep time. Many parents say it "saved me from my early riser! Life changing!" Even parents of older children with developmental delays found the clock very useful in indicating to non-readers when it's okay to get up, and when it's not.
The timekeeping element of a quartz clock consists of a ring of quartz about 2.5 inches (63.5 mm) in diameter, suspended by threads and enclosed in a heat-insulated chamber. Electrodes are attached to the surfaces of the ring and connected to an electrical circuit in such a manner as to sustain oscillations. Since the frequency of vibration, 100,000-hertz, is too high for convenient time measurement, it is reduced by a process known as frequency division or demultiplication and applied to a synchronous motor connected to a clock dial through mechanical gearing. If a 100,000 hertz frequency, for example, is subjected to a combined electrical and mechanical gearing reduction of 6,000,000 to 1, then the second hand of the synchronous clock will make exactly one rotation in 60 seconds. The vibrations are so regular that the maximum error of an observatory quartz-crystal clock is only a few ten-thousandths of a second per day, equivalent to an error of one second every 10 years.
Use your wall space as the board to create your scalable clock. The Blink wall clock by Umbra is a set of black metal indicators and 12 number that mount to the wall with adhesives. Comes with a template to set the scale of the clock on a wall. Clock mechanism mounts to the wall with a screw or nail operate on one AA battery (not included). Designed by Edward Lee and Adrienna Matzeg Umbra original, modern, casual, functional and affordable design for the home.
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Certainly not just for telling time, wall clocks are perfect for adding artful appeal to your kitchen wall or acting as a focal point above the living room mantel. Take this one for example: crafted from metal, its frame features an openwork design and a black finish for a look that fits right into traditional abodes and modern farmhouses alike. Measures about 30'' in diameter. Requires one AA battery to operate.
If you've moved away from using a clock completely and instead set an alarm on your phone, consider the SmartShaker by iLuv. The device slides under your pillow and shakes you awake when your phone alarm goes off (it connects wirelessly using bluetooth). You can also have the device sound an audible alarm. The battery lasts a full month before needing to be charged.
“I am the heaviest sleeper and was setting four or five alarms on my phone to wake me up. After being late a few times, I decided to purchase this alarm clock to help me wake up on time. I couldn’t be happier with my purchase. … The bed shaker is super important. I put it under my pillow, and it shook me awake; the loud beep helped too. If you can sleep through earthquakes and shouting family members, this is the alarm clock for you.”