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What is Time? Can it be Defined?

A watch or clock will tell you the time, but what actually is time? It cannot be seen, weighed or felt and is sometimes called "the fourth dimension". Yes, we can measure it, but what is time? We all understand an interval of time, and we can often judge the length of this interval. Ah, there is a clue, it has a length, so there must be a starting place and an ending place, and yes, those two places must be events, or instants, in time. But we are no closer to knowing what time actually is.

We know that we can say something like "it is 3 o'clock" but somewhere else it might be 4 o'clock, so it is a variable dimension depending on where you are located. But, both 3 o'clock and 4 o'clock occurred at the same instant so that suggests that the starting point for each was at a different time, but isn't time measured from a common sychronised time on a clock in Grenich in the UK? You say that the differences in time is because the earth is revolving on its axis? So now the earth has an effect on time.

Time is Measured from a Starting Point

Now all of this is just a little play on words, a game, but we can say that "the time" is a given value for a particular instant, and that the value that is given to that instant is measurement from an agreed starting point. We can also say that a period of time, such as a second or a year, is the measurement of an interval of time between two particular instants.
While the human mind cannot grasp and explain what time actually is within itself, we do have an understanding of the passing, or measurement of time. From the earliest days of man's existence there has always been a need to measure time, whether it is a season that tells that it is time to plant a crop, or a time to move stock from a winter to a summer pasture, to the present day needs for the precise measurement in nanoseconds in our complex industrialised and scientific world.

Time Measuring Devices

The refinement of time measuring devices has progressed from prehistoric stone structures that relied on the position of the sun to present day atomic clocks that are able to measure time in nanoseconds by using the oscillations between an electron and the nucleus of caesium atoms as they gain or lose energy, and which are known to oscillate at 9,192,631,770 times per second.
Irregardless of what is time, in today's world there is a constant need to know what is the time, and while we cannot carry around a stone structure or an atomic clock, and we are not always in a location where a clock can be viewed, we can carry  one of the many wrist watches that are available in a multitude of types, styles, qualities and brands.

Types and Styles of Watches.

Long gone are the days when virtually all wrist watches were wound by turning a knurled winder button and two hands moved to record the time on a numbered dial. One of the first deviations in watch manufacture was when digital watches arrived on the market and the moving hands were replaced with a constantly changing number display, and today we now have a wide and varied choice of watches, and from these links you will be able to choose and buy from a range of

The Little Watch Store           

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