Topic > The Importance of Time in History - 1234

Timekeeping has been an integral part of life since humans first set foot on earth. Once humans realized the difference between night and day, the phases of the moon were used to determine the months, change the seasons, and record the years. Humans soon realized the connection between time and the position of the sun and began using shadows to measure time, thus creating the sundial, used primarily by the Egyptians and Greeks. As life became more complex, so did the need to keep time accurately. Initially, the mechanical clock was invented in 1000 AD. Later we moved on to using celestial time and finally in 1967, atomic clocks were invented. These atomic clocks are so efficient that they make other methods of measuring time seem redundant. We have therefore come a long way in measuring time and I firmly believe that continuing to use the rotation of the Earth around the sun as a method of measuring time would be to ignore the progress made in measuring time throughout history and go further back into the past. The ancient method of using the earth's rotation around the sun as a method of keeping time requires adding leap seconds to the time determined by atomic clocks to keep it coordinated with celestial time. This is because the earth has slowed down over the years due to friction between ocean tides and the shallow seabed caused by the moon's gravitational pull. This moon causes the Earth's rotation to slow down by up to 1.4 milliseconds or more. In addition to this, irregular rotations of the earth occur because the molten core and the solid mantle of the earth rotate at different speeds. These esoteric movements make the measurement of time very unreliable and cause the Earth's day to be longer than that measured by atomic clocks and the length of... half the paper... t during their operation. In some cases, the need to avoid disruptions has led to consideration of using non-traditional timekeeping systems, such as GPS Time or a timescale operated by a single government contractor. Instead, why don't we just switch to using atomic time which is accurate, continuous, and does not vary over millions of years? The continued use of a non-uniform time scale that includes leap seconds is sure to cause problems in many walks of life, especially now that technology relies heavily on satellite communications requiring precise timekeeping. Eliminating leap seconds will mean moving forward and taking advantage of new timekeeping methods. As much as we love our beloved earth, it is time to realize that celestial time is not entirely accurate in this new era of technological development and more precise methods of timekeeping..