The Importance of Time Throughout History

1234 Words3 Pages

Timekeeping has been an integral part of life ever since humans stepped foot on the earth. Once humans realized the difference between night and day, moon phases were used to determine months, changing seasons and record years. Soon humans realized the connection of time with the sun’s position and started using shadows to keep time thus creating the sundial, used foremost by the Egyptians and Greeks. As life become more complex, so did the need to keep time accurately. Initially, the mechanical clock was invented in 1000 AD. We then graduated to using celestial time and finally the atomic clocks were invented in 1967. These atomic clocks are so efficient that they make other methods of timekeeping seem redundant. Thus we have come a long way in timekeeping and I strongly believe that continuing to use the earth’s rotation around the sun as a method of timekeeping would mean ignoring the advances made in timekeeping over the course of history and moving further back into the past. The ancient method of using the earth’s rotation around the sun as a method of keeping time requires one to add leap seconds to the time determined by atomic clocks in order to keep it coordinated with celestial time. This is because the earth has been slowing down over the years due to friction between ocean tides and the shallow sea floors caused by the gravitational pull of the moon. This moon causes the earth’s spin to slow down as much as 1.4 milliseconds or longer. In addition to this, irregular rotations of the earth occur because the molten core and the solid mantle of earth rotate at different rates. These esoteric motions make timekeeping very unreliable and cause the Earth day to be longer than that measured by atomic clocks and the length of... ... middle of paper ... ...t on their operation. In some cases, the need to avoid disruptions has led to considerations of using non- traditional timekeeping systems, such as GPS Time or a time scale maintained by an individual government contractor. Instead, why don’t we just switch to using atomic time that is accurate, continuous and doesn’t vary for millions of years? The continuous use of a non-uniform time scale by including leap seconds, will definitely cause problems in many walks of life especially now that technology relies heavily on satellite communications that require precise timekeeping. Getting rid of leap seconds will imply moving forward and taking advantage of the new timekeeping methods. As much as we love our beloved earth, it is time to realize that celestial time is not every accurate in this new age of technological development and more precise methods of timekeeping.

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