What if I told you the light we receive from the sun is a combination of 7 colours. Or what if I tell you white light is a combination of 7 colours. Could you believe me ?      Actually Sir Isaac Newton also told the same thing a long time ago. But none of them believed him.      So what he did was One bright sunny day, Newton darkened his room and made a hole in his window shutter, allowing just one beam of sunlight to enter the room. He then took a glass prism and placed it in the sunbeam. T he result was a spectacular multicolored band of light just like a R a i n b o w .        The multicolored band of light is called a color spectrum . It includes seven colours namely V iolet , I ndigo , Blue , Green , Yellow , Orange , and Red . The acronym V I B G Y O R would helps us remember the sequence of the colours.  The splitting of W hite  light into its component colours ( V I B G Y O R ) is known as dispersion .  If we...

  What is Reflection of light ? The bouncing back of light is known as reflection of light. What happens during the phenomenon of reflection? The ray of light approaches a surface and the light ray bounces back. The light ray which approaches the smooth surface is called the incident ray of light and the ray of light which bounces back is called the reflected ray.  Normal is an imaginary line perpendicular to the surface reflecting the light. What are the types of reflection? There are two types of reflection namely regular reflection and irregular reflection.          ⭐Regular Reflection When a ray of light gets reflected in a definite direction and are parallel to each other it is called as  regular reflection. This type of reflection occurs only if the light get reflected from a smooth or polished surface.          ⭐Irregular reflection When a ray of light gets reflected in a indefinite manner and are not parallel to ...

Have you ever wondered why stars twinkle and not the planets?  If so then you're at the right place... come let us find out why do stars twinkle. First let us see what do you mean by atmospheric refraction. we all know what is refraction of light   (If not click here to know) . Atmospheric refraction of light is the refraction caused by the atmosphere due to variation in the air density. Why does stars twinkle? Twinkling of stars is due to atmospheric refraction of the star light. The star light, on entering the earth's atmosphere, undergoes refraction continuously before it reaches the earth. The atmosphere bends starlight towards the normal, hence the stars are slightly above than their apparent position. Further this apparent position of the star is not stationary it keeps one changing since the physical conditions of the earth's atmosphere keeps changing. Stars are very far away as compared to the planets so they appear smaller than the planets. The ray of light is ...

Did you know that Bananas are berries and Strawberries, Raspberries or Blackberries aren't berries? If not let us know why are bananas berries and why strawberries aren't one.   Now let us see what is and isn't a berry and I think you might be surprised.      Berries nomenclature is complicated. Before a scientific definition existed, people called a simple fruit having a pulpy pericarp ( Pericarp is the fleshy, nutritious, seed-bearing, edible, part of the fruit... like the yellow fleshy part of the mango fruit) in which the seeds are embedded. According to botanist, berries must have three criterias.       ⭐ First, berries must have three fleshy layers .          The outer skin known as the EXOCARP,  The fleshy middle or the MESOCARP and the innermost part that holds the seeds known as the ENDOCARP.          Just the like the avacado. Which has the exocarp (outer peel),...

Have you ever wondered how rockets ignite their engines when we say there is no oxygen in space?... have you ever thought is it possible for rockets to ignite their engine in space without satisfying the fire triangle?       S o come, let us dive in and find out how do rockets and satellites ignite their engine when there is no oxygen in space.  First let us see, what is a fire triangle?     A Fire Triangle also known as the Combustion Triangle is simply a model for us to understand the necessary things that is required for combustion. The Fire Triangle's three side illustrates the elements of fire namely, heat; fuel; and oxidising agent (usually oxygen).      ⭐ The first element in the fire triangle is the Heat .   A fire cannot ignite itself unless it has a certain amount of heat, and it cannot grow without heat. so heat is the most essential of fire elements.      ⭐ The second element in the fire trian...

As we all know about the fire triangle, we come to know that oxygen  is required for combustion. So does that really mean sun requires oxygen?      Absolutely Not, sun does not need oxygen . Infact burning of sun is not a chemical combustion, it is nuclear fission . To be more clear sun does not burn . The sun glows because it is a very big ball of gas and a process called nuclear fusion take place in its core.       Nuclear fusion is when one proton smashes into an another proton so hard that they stick together and become one and release energy  Now some may ask how is energy produced when two protons collide?        If we take sun... we know that it is made up of hydrogen and helium . So the hydrogen collide and combine or rather fuses with the helium atom in the process of nuclear fusion, then while they collide some of their masses are lost. Which is similar to the situation where two very fast cars collide with ...

1)  The Statue Of Liberty is made up of Copper covering. So it was originally the colour of a copper. It turned completely green because of oxidation in 1920.