FOR THE LOVE FOR PHYSICS

What is this Universe?

12 Dec 2021 is the day of  Arjun's Exam , he was very tensed with no preparation. But the day was nearby so he decided to sit for the sometime to revise, some of the concepts, but it was very hard for him to concentrate as he hasn't been a big fan of the subject Physics. He had always hated that this is the only subject which can't be cracked by just memorizing the concepts. So now he is thinking that with so much hate, how will he able to get down with it. He called his bestfriend Vartika, he told her his problem and asked her if they would study together( if she could teach him some basic concepts) he can get to the pass marks. Vartika, not very happily agreed, and in the next hour he was outside her home he called out for her to come and open the door. After one hour of gossiping with the books kept open, Vartika finally somehow convinced him to hear something which could make his life better, He asks her to start with some easy chapter or else it will be tough for him to get it in. She asked him that why he doesn't like Physics, the only answer he could come up with was that it can't be done at the last hour. She asks him to ponder over the question the question for some time and then give the answer It was he first time Arjun really thought something about himself, he thought for a while and then said that he doesn't have any answer to her question. She  smiled a little and said let start with the chapter 'Gravitation' (Now you may think Why Gravitation, you will get the answer as follows). She  started describing that what is Gravitation, It was a force of attraction between two bodies, it made Arjun's hormones jump up a little and he started blushing, she said further more that this force is only attractive in nature, he said that all he knew this far that gravity was just an acceleration towards the center of the earth. She replied you fool first of all gravity is not a acceleration. It is the force of the earth which pulls everything towards it, and every mass in this universe attracts the other with the force of Gravitation. Arjun, So as I am a mass, why is that I'm not coming towards you(his first logical but rubbish question). She replied that as the mass of the earth is so big that the attraction between you and any mass is very negligible, but there is some force between us too. Now we will move further into this topic. According to Newton's law of Gravitation, the force of gravitation is proportional to the product of two masses and inversely proportional to the square of the distance separating them, when you get them together, you get an equation where get an proportionality constant while has a value. Arjun, I have a  question that why is this Force present in this nature, I mean why this force exists. Vartika replied that I don't know that because teachers don't teach that in Schools, if you have to get the answer to that you have to research with that. She then continued to teach him the rest of the Gravitation, after two hours of very deep education Vartika asked Arjun that it has been very late and he should return home, Arjun gave it a thought and decided to return. As he returned he saw his Physics book lying on the table, as he forgot to take it to Vartika's home, he gave it a look and that question popped in his mind which he had previously asked Vartika but she couldn't give the answer. He decided to sit with Gravitation for some time to get some clue on which he can further ponder over. He opened up his book and went through the whole chapter once, he learns about gravitational potential energy, artificial satellites, orbital velocity, geo stationary satellites and gravitational field. As he completes the chapter and turns the cover around he feels some spark of confidence in his heart, he starts walking around his room to and fro thinking more about the planets and placing them in graphs to visualize the forces.

Arjun saw that the small hand of the clock is at twelve, he thought he should probably get to sleep, He washed his face and went to the balcony to get the towel, suddenly his eyes stuck at the stars and a question came in his mind that what are this stars , then another question, that why are the so far away from us. He got in his bed, as he closed his eyes he saw darkness in front of him, he questioned himself, Who Am I in this Darkness? He pulled his bedsheet to his head as it was getting chilly. He tried to stop thinking about different things and pressed his eyes, suddenly he could hear his heart pounding, he relaxed his body and a question came again, Why is this heart pounding. He thought about it for sometime but the fatigue in his brain was not allowing his to think. After sometime one by one questions came to him, What is Life? Why are we here? Are we the only one in this place?  What is this Universe?

To be Continued