The Atomic Clock - Always Accurate
Article by: Charles Kassotis
If you look around your home, , Replacement Windows Information you'll likely find several
timepieces of varying sizes. From the watch on your hand to the
grandfather clock in the living room, , Mistakes? and from the alarm , Purchasing Your Copper Sink - Helpful Tips & Information clock
in your bedroom to the computer clock on your desk, most people
have several clocks available. And at any given time, few of
those clocks will show precisely the same time. So how do you
know which is really correct?
There are several ways of keeping time. The most commonly
recognized is based on the Earth's movement through space. But
those rotations are very large and the potential for gaining or
losing seconds is incredible. A more precise method of
timekeeping is atomic time. Very simply, atomic time measures
the pulses and absorptions of electromagnetic waves. Generally,
atomic time is considered to be the most accurate available.
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. There are several of
those devices around the world, including on in Colorado that
controls many of the US atomic clocks.
Atomic 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. The first few atomic clocks were very austere models,
meant to be accurate time keeping devices and nothing more.
Today, there are plenty of options if you're looking for
accuracy without sacrificing beauty.
Grandfather clocks are one of the most recent advances in atomic
clock technology. 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. Some grandfather clocks no longer depend on the
pendulum for timekeeping, making them more accurate. But more
recently, the atomic clock works have been incorporated into
grandfather clock cases. As is true with all atomic clocks, the
atomic clocks in grandfather clock cases are periodically
updated to be kept completely accurate.
Most people tend to truly believe that computers are right.
After all, computers know the time and date automatically,
right? But remember that someone set that date at the beginning
of the computer's life, and that you may even have adjusted the
time for daylight savings time at some point. If you want your
computer clock to be always accurate, you can download a program
that will have your computer periodically check in for the
official atomic time in your time zone.
Over the ages, people have developed many methods and utilized
many concepts for determining time. Sundials and hourglasses can
give an idea, but are something less than accurate. Rotation of
the sun, , Hardwood Flooring Selection locations , Boost Your Home's Resale Value Guaranteed of stars and the rise and fall , How To Find Quality Log Furniture And A Trustworthy Retailer of tides have
all been used to help account for the passage of hours, though
they weren't accurate enough to count minutes or seconds. The
atomic clock is man's latest step toward keeping an accurate
track of time.
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