Have you considered an object with just three dimensions?
Well, of course you have. Everyone generally has. The three dimensions namely
height, length and breadth seem to make up any object we see around us. And as
our tendency is, we take up that definition without question. Which tendency am
I talking about? Well, it is to accept a hypothesis that makes the definition
of a thing the simplest. But as the great physicists have come up with the fact
that there is indeed a fourth dimension.
The first thought that comes in mind on reading the fourth
dimension is a mathematically worked out plane perpendicular to the other
three. But probable as it seems, and yes simpler too, I am not talking about
that. Mathematically considering we can use this definition, but let’s change
into something different. Consider this in the ways of quantum physics. I know
on hearing this word ‘quantum’ most people think “Oh, what a dreadful topic!”
But trust me, I myself am new to this topic and so far, I have learned that it
is all about visualization. And for this visualization, there is no need to
dive into the theories of quantum physics. It is rather simple.
Let us do this together. Consider a cube having some length,
breadth and height. We think that this definition is complete. Is it? What if
the cube you are imagining existed decades before you were born? What if there
were no cubes until after centuries of your death? In a simpler term, if the
cube existed instantaneously and then it vanished? A little confused, are we?
Well, we know our eyes have a certain time limit which if not reached for the
flash of an object, our brains cannot process it. So, if we were to say that it
was less than even 0.01 milliseconds less than the limit, we’d miss it. So, can
you see know why the fourth dimension, that is time, is really important for
defining the cube or in general, an object.
So, we see why time is important to define the existent of
something or someone. Firstly, we need the location of the object in the
timeline. This is just that we need the starting and ending point of that
object in the time. Secondly, we need to have its existence for the duration
for which it existed to be sensed by us. Just before I wrap this discussion up,
now we know what is the space-time continuum that we often associate with
quantum physics. The first three dimensions make up for the space part, and
time, as we say it, our ultimate solution, makes up for the time.
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