The atomic clock is an extremely accurate time keeping device which is used for many scientific purposes. It was even the invention of the atomic clock which caused the definition of a second to be reassessed and ultimately changed. The atomic clock is most widely known for being a component in Global Positioning Systems.

The first atomic clock was the size of a wardrobe and so portability was not something it was known for. However, as technology has improved and the invention has been tweaked and updated it has gradually become smaller and smaller.

Now a new atomic clock has been designed which is the size of a sugar cube and whose internal mechanisms are about the size of a grain of rice. This allows the clock to be worn on the wrist as a watch and will prevent the wearer from ever blaming their late arrival on a slow watch.

Running off a 73 milliwatt battery, the atomic clock wristwatch will not be able to offer the wearer the same degree of accuracy as the larger models currently used in GPS systems. However, an accuracy of one second every 3000 years can be expected, which is more than sufficient to last for several generations of your family without any error in the time reading. This accuracy level is 1000 times better than a standard wristwatch as these use quartz crystal oscillators to measure the passing of time and these can be affected by external factors such as temperature.

Although these devices are not currently available on the market it is estimated that they may retail at around $100 on their release. A price which many think is worth paying to ensure punctuality amongst family, friends or staff.

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