Light!
Is it the thing that makes sunrise beautiful?
Or
Is it the thing to which darkness is afraid of?
Or
Is it the thing that gives us sunburn?
Or
What is light exactly?
In general words, it is a form of energy, which gives us
sensation of sight. It is the thing to which darkness fears, it’s also the
thing that gives us sunburn and it’s also the thing that makes us see things. What
we generally see around us is visible spectrum of light. When we talk about
light, we’re talking about visible light, infrared light, Ultraviolet
light, gamma rays, x-ray, etc. combined.
When a ray of light strikes a surface majority of ray is reflected depending on the nature of surface, that reflected ray of light strikes our eye and boom we see that thing.
Above mentioned is the mechanism of how we see objects with
the help of visible light. The mechanism is same for UV, infrared lights, but
our brain can’t form image using such rays. Hence world of UV and infrared
light is absence for us. Various animals can see those rays and use it for
their advantages, like pigeon uses UV rays for determining directions.
Moving on visible light, when we wake up in the morning and
look towards east, sun rays piercing through clouds and through the hills can
be seen coming towards us slowly. Sun is such far away from us, even then the moment
sun is seen in the east, light rays already struck us. Even at night, stars which
are way larger than sun and are millions of light year far from us can be seen.
But a person standing 100m away will hear your voice after some delay and
intensity of the sound would’ve reduced a lot. So, what makes light ray so fast
and consistent.
Light possess dual nature, wave nature and particle nature.
It can be seen that speed of light is quite fast, but how it
is so consistent? Like it travels such a
great distance even then its intensity doesn’t seem to reduce. It’s because of
its nature. It is an electromagnetic wave meaning it is medium independent and
travels due to perpendicular oscillations of magnetic and electric component.
Speed of light is so fast that we measure distance between
galaxies, stars in terms of light years.
Light year is the distance travelled by light in a year. So we knew how
it is consistent but how is it so fast?
Till today, there is no explanation of such huge speed of
light. The speed of light is considered as its property so it is so fast because
it is of that nature. Such explanations can be found. When a question is raised
on something and it turns out that the reason is because of property, the
question is ended. it’s funny how we’re unable to explain about the property . Or
is it we cannot explain because we can’t sense or its way more complicated. It’s
not like no one has conducted a single experiment and research on this, there
are many but the conclusion didn’t turn out to be meaningful.
May be reason behind such speed of light is not meant for us.
It maybe because the thing as light we see may be a thing carried by another
carrier and we are just able to sense the thing carried by the carrier. For example,
when a ribbon is attached on a vehicle and vehicle is moved, ribbon moves with
the same speed as vehicle .And when the vehicle is made invisible by some means,
ribbon floating and moving very fast can only be seen. Similarly, light we see
is also like a ribbon carried by another moving body with greater speed.
If so, why can’t we see that carrier?
Here comes a
hypothesis of higher dimensional carrier.
In this hypothesis, light is carried by a material of higher
dimension. Before further explanation, let’s learn about limitation and behavior
of our mind.
Our mind is limited to
3-dimensions. Meaning, we can only see and imagine things up to 3-dimensions. And
also another amazing behavior of our mind is that, it is chooses the shortest
and easiest way. Like when we imagine a space craft, our mind does not creates
new image rather it searches old images that we may have seen related to space
craft and according to that it forms image. And the image would be of 3-
dimensions cause we have never experienced dimensions higher than 3-d. Even if
we see a thing of higher dimension, our mind tends to form that in 3-d and
similar to our previous images. For example : if we encounter an alien of 5th
dimension , for an instant our mind wouldn’t be able to process that
information and after some time mind will render that alien in 3-d image and
tries to blend in previous 3-d alien images . This is how our mind works.
So when light is carried by carrier of higher dimension, that
carrier is invisible to our senses and hence we just see light travelling on
such great speed.
Post a Comment