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Why is the Earth Round?

We live in the earth which is a sphere (but not regular) in shape. This is a strange type of thing. Why did it become sphere rather than being in other shape?  So, today I am going to tell you about what makes earth round. I am going to explain it with the help of theories of Newton and Einstein.

Einstein’s theory

I saw most of the people being concentrated on Newton’s gravity only. So I decided to describe it with the help of Einstein theory……..

Our space is fourth dimensional. It gives out different kind of force that is a kind of curved force. If you throw a stone vertically from a straight pillar then it will never go straight but it will bend a little bit and fall when it goes on reaching the ground. This is also said to be an effect of this fourth dimensional space. We can say that a fabric kind of cloth is residing on a space due to the curved force of fourth dimensional space (The reason we supposed a fabric cloth will be explained in last paragraph). When a huge mass gets on the fabric then it becomes conical. For e.g. if a cloth is hold at its edge with some persons and a huge mass is kept in the cloth then the cloth is depressed and becomes in a shape of cone. Again if an irregular clump of mud is rotated on its slanted conical surface then it goes on being round as it moves on circular path. In earth it will fall down while rotating due to gravity but in space it doesn’t fall down due to absence of such downward gravitational force. Same as this, in space too the planets in solar system revolve in this conical surface (created by huge masses like sun and other stars) around the sun and these kinds of stars also revolve in the galactic centre due to which they go on being round.

But in real there is not such fabric in space. It’s just supposing. In my view, this is due to the displacement of force of fourth dimensional space which is caused by huge masses like sun and other stars due to their huge masses, which causes conical surface same as in the fabric. The huge mass causes to displace the curved force and that force is displaced to other place creating a depression on its original position that totally creates a conical surface. Same as a fabric, the displaced force created by huge mass and the original curved force of fourth dimensional space exerted on the planets tries to hold the planets above the huge mass so that they tend to revolve in that conical area continuously. This causes the planets to revolve around the stars and satellites to revolve around a planet which is the main reason for them to be round.

Newton’s theory

According Newton’s, law of gravitation anything having mass exerts gravitational force towards another mass. This force tries to attract everything towards its centre. This force is distributed everywhere around the body. It’s not one sided. It is like a magnetic force in small area where it attracts magnetic substance from all sides rather than a one sided vacuum cleaner which attracts the things from one side only. As this force is distributed all around the mass it tries to collect mass from all sides which are collected in all parts of the surface of mass and again a mass tries to be collected at the centre due to the influence of gravitational force so it remains on every part of the surface. Due these reasons the mass forms roughly a sphere. So everything in this universe tends to be in spherical shape. Also small droplets of water in leaves tend to be in spherical shape due to their freely moving molecules but it is not so in more amount of water because more gravitational force of earth is exerted on it. This is also due to the curved force illustrated above.

 You may be thinking why the substances like brush, doors, utensils etc in the earth are unable to be sphere. This is because they have very less mass due to which less gravitational effort is applied between their smallest components. Also they don’t have free molecules like water. So it doesn’t become sphere. So, small rocks in the space are also irregular in shape. The last and most important thing is our earth is also not totally round because its rotation makes it having greater radius at equator. It is roughly a sphere.
Discovered by Kapil Sharma

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