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WHY THE SKY IS BLUE

Introduction :- There are different colours in our rainbow and all of them together make the world look beautiful. There are some fix colours for many things like leaves, ocean, sky, etc. Now many of us want to solve this mystery that why a particular thing has a particular colour. Actually, our space is so mysterious that every day we come to know something new.

History of Blue Colour :- 

It was 1859 when John Tyndall discovered, why the sky looks blue on earth? But there is a history behind the discovery of the colour blue. The pyramid was a sign of Egyptians and some artist also made small pyramids of glass. As a result, they saw the sun rays entering the small pyramids and it further scattered. They noticed a blue colour because it scattered the most. This was the first time when people noticed a blue colour.

What is the Real Colour of Our Sky ? 

There are many layers in our atmosphere and some water droplets are also present all over. When the sun rays enter our atmosphere, it gets refracted and scatters. It is similar to the glass pyramid case and the blue colours scatter the most and make the sky look blue. Basically, it is a white light which contains all the seven colours.Light travels in the form of wave and different colours have a different wavelength. Blue has a short wavelength which results in scattering more. For example, you can see the red signal from far, or you might have seen many sign boards written in red colour. This is because red penetrates the least as a result it remains the same from far.

How ‘John Tyndall’ Discovered the Blue Colour of the Sky? 

John was a scientist and use to perform several experiments. Once he used two test tubes and hold them in such a way that the sun rays passed from one to another. In this way, he saw that the tube appeared blue from one end, whereas it appeared red from the other side. This made him clear about the blue colour of our sky.

Conclusion :- I can say that colours play a very important role in our life and we have made certain perceptions about various colours. Another thing I would like to mention is science. Really our science and technology had made our lives easy and simple. When we get a correct explanation about something, things seem clearer. If it would not be discovered at that time many other experiments would not be performed. Actually, science is all about progress and it never stops. That's why the blue colour of the sky on earth has been resolved.

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