Atomic Clocks

Ok, if you're looking for a full scientific explanation of how atomic clocks work, then you should probably check out Wikipedia's fantastic article on the subject. What we're going to provide you with here is a basic summary of how your atomic (radio) clock is going to provide you with the most accurate timekeeping possible in your home.

Several agencies in the US maintain atomic clocks for scientific and other reasons. These clocks are large and expensive. The most current clocks calculate their time from a chamber of ionized gas, usually cesium. The technology was invented during the fifties, and the clocks have become more and more accurate with every year. Recent work has led to the development of a much cheaper atomic clock, but it has yet to replace any existing clocks.

As for your personal atomic clock's timekeeping, it all begins in Fort Collins, Colorado. From here, the National Institute of Standards and Technology (NIST) broadcasts a shortwave radio signal that is capable of reaching the entire continental United States. The signal contains information that allows properly equipped radio clocks to calibrate themselves properly. This is usually done every night to ensure that the clock is always kept accurate. It is important to note that placement of your clock could affect its ability to recieve the signal. Please read your clock's manual to learn more about setting up your clock. Once your clock has calibrated itself, it should continue to keep time accurately by itself.