![]() Some grandfather clocks no longer depend on the pendulum for timekeeping, making them more accurate. ![]() Because these clocks depend on the swinging of a pendulum to keep track of time, they are notorious for gaining time right after they're wound and losing time as the clockworks run down. Grandfather clocks are one of the most recent advances in atomic clock technology. Today, there are plenty of options if you're looking for accuracy without sacrificing beauty. The first few atomic clocks were very austere models, meant to be accurate time keeping devices and nothing more. There are several of those devices around the world, including on in Colorado that controls many of the US atomic clocks.Ītomic time keeping has been around for more than a half century, but it's only been over the past few years that the technology is generally available at a reasonable price to the public. When you choose an atomic clock, the clock's time is kept current through the use of radio signals between the nearest atomic time-keeping device and your clock. Generally, atomic time is considered to be the most accurate available. Very simply, atomic time measures the pulses and absorptions of electromagnetic waves. ![]() A more precise method of timekeeping is atomic time. But those rotations are very large and the potential for gaining or losing seconds is incredible. The most commonly recognized is based on the Earth's movement through space. So how do you know which is really correct? And at any given time, few of those clocks will show precisely the same time. From the watch on your hand to the grandfather clock in the living room, and from the alarm clock in your bedroom to the computer clock on your desk, most people have several clocks available. If you look around your home, you'll likely find several timepieces of varying sizes.
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