Measurement of Time - Basic and other units.
We all need to understand the importance of time because it is the most valuable thing in this world.
Henry was moving here and there around the school ground in order to reach his class as gradually as he could.
"Aren't you going to be late for your classes?", his teacher asked.
“No, will it make any difference if I reach on time?” Henry asked back.
“Yes, you might miss the important parts of your current chapters” replied his teacher.
Henry smiled and told the teacher that he has learned everything beforehand and there’s nothing new his teacher could offer.
“Still Henry, time is precious and you should never waste it” suggested his teacher, knowing that Henry is a bright student.
Henry wondered why everyone was bothered about his ‘timings’ and he could never understand its importance.
“Isn’t time just a number that clocks display or a certain period in which we do something?”, asked little Henry.
“Well, time is much more than those couple of sentences Henry, I cannot explain it to you in detail but professor Abraham can", replied his teacher.
So, after school, Henry reached professor Abraham’s cabin and approached him directly with a question, “Sir, can you tell me all about time?”.
Taking the question seriously, the professor said, “First you tell me what you know about it."
“Nothing much, except that being on time is a good habit and you should never waste it. Although I never understood why”, exclaimed Henry.
This is because the consciousness of time is what distinguishes us from the rest of the species”, the professor told Henry.
From here, professor Abraham explained everything to Henry in detail.
Now, we will study more about time.
Basically, time is a linear continuum of instants and hence it prevents everything from happening at once.
Linear continuum means that time has an essential direction and has moved from the past, is running in the present, and will go towards the future.
So, time is a dimension in which events can be ordered from the past through the present and into the future.
It is also a measure of the duration of events and the interval between them.
Let's discuss the term Chronometry.
The science of accurate measurement of time is called Chronometry.
Apart from clocks, there are various ways to measure time such as sundials or sand clocks.
But majorly, clocks and calendars are used under chronometry.
Yes, the clock as we know it was invented to display the current time for us and the calendar is basically a system for organizing and specifying dates.
Typically, both are used together to pinpoint a particular event that has already occurred or is about to happen.
There are 7 base units for the measurement of all seven phenomena and 'second' is the Standard Unit for time.
Now, let's look at other units of time and their relation with 'second'.
All the other units of time such as 'minutes' and 'hour' are interrelated, as a minute consists of 60 seconds, an hour consists of 60 minutes and a day consists of 24 hours.
We also have months, years, decades, and centuries which tell us about different passages of time.
Time for a quick revision.
Time is an important aspect of life and we are still far away from knowing how time works.
Time awareness is what differentiates us from the rest of the species.
We could display time through a device called a clock.
Example: A toddler becomes a boy with time and then ages into a man and finally gets old.
The science of accurate measurement of time is called chronometry.
Other than clocks, there are various other ways to measure time such as the sand clock and the sundial.
A calendar is basically a system for organizing and specifying dates.
'Second' is the standard unit of time.
Here's a table for the conversion of time.