In the last century, Edwin Hubble announced in a glowing voice that the universe was growing in size every moment. The Universe is Expanding. Ever since the Big Bang, galaxy clusters have been moving away from each other at speeds faster than the speed of light. Even as long as it takes you to read this line, galaxies will move millions of kilometers away.
There is a small misconception about the matter among many. The fact that the universe is expanding does not mean that galaxies are moving away from each other. Rather, the truth is that new space is constantly emerging between the two galaxies. The thing is - you and your friend were standing side by side. In a hurry, a two-kilometer space was created between the two of you. As a result, you moved one kilometer away from your friend. This is how new spaces are being created between galaxies and super clusters.
He will go. We don't care about how the expansion is happening. Our question is on a rather more basic thing.
Is the expansion happening or why?
That was not supposed to happen. The universe that was created after the Big Bang was said to be slowing down due to their gravity when there were enough planets, stars, nebula galaxies, etc. in the universe after some time of expansion. Once the expansion stops, the gravity pull will continue to pull everyone in the opposite direction. That was supposed to happen, right? In reality, then why the expansion is not stopping?
Well, we can't say for sure. But when the best heads of mankind cannot be sure of anything, they drop some extraordinary theories from scratch. Within a few days, we realized that there must be some 'unknown' force in our space. This energy works against gravity. He can expand everything. That is why the universe has not shrunk but is still expanding.
Since we know nothing about this power, yet in darkness; So its badash was given a name.
Dark Energy.
Although our knowledge of this mysterious power is still at the nursery level, at least we are dependent on the amount of sure, dark energy that is the end result of our eternal universe.
Below we will look at three popular theories, how our favorite Universe can be Bhablila Sang.
The Big Crunch
From the above text, it is clear that Dark Energy and Gravity - the two superpowers are fighting with their arms folded. Gravity wants to pull everything in the universe closer, while Dark Energy wants to push everything in the universe farther away. The power of dark energy is going to be noticed more in Punjab so far. But will it last forever? What is the amount of dark energy per cubic centimeter of space? Enough to lose gravity? Or is there anything called dark energy?
These questions create some great possibilities. If there is no dark energy or if there is less than the required amount, then the last victory in this panja will be Gravity. Who knows, maybe after billions and billions of years, the pace of expansion will slow down. Then everyone will start coming closer. This speed of approaching will gradually increase. Galaxies will disappear from space at speeds faster than the speed of light. The universe will continue to shrink. How much will be compressed? All the billions and billions of galaxies in the universe will merge into one.
The story of approaching Closeup will not end. After galaxies, solar systems, planets, comets, asteroids, meteors will all collapse. By being compressed in this way, the whole universe will come to a point smaller than an atom. The temperature of the ultra-microscopic particle universe will be infinite, the density will be infinite. The world will be one level 8 In the language of physics which is called singularity. All the rules of our physics fall flat there.
This situation does not seem familiar?
জ্বী। বিগ ব্যাং এর সময়কার অবস্থায় তৈরী হবে আবার। এই আশ্চর্য রহস্যময় জগতের যেভাবে শুরু হয়েছিলো, সমাপ্তিও সেরকমভাবেই হবে। পোয়েটিক, হাহ?
সংকুচিত হতে হতে আমাদের প্রিয় কসমসের এভাবে পরিসমাপ্তির এই থিউরিটা বিগ ক্রাঞ্চ নামে পরিচিত।
So what happens next? Maybe this singularity phase will last like this for eternity. But what could be more dramatic is that a new Big Bang could happen again after reaching the singularity (point stage) from shrinking. It may be the beginning of a new universe like ours again.
We do not know whether the universe is constantly revolving around the creation and destruction of the Big Bang and the Big Crunch. I don't even know if the death of a previous universe cost us the birth of today's universe. If so ... then maybe our favorite universe is just a very meaningless dot in this infinite universe chain. Nothing more than that.
How insignificant we r. Yet how erroneously we act.
The Big Rep
Life is not a Bengali movie. Not even the fate of our universe. So much drama would not be possible without the pages of science fiction. All experiments, research has come to the conclusion that dark energy in space is endless. The amount of physical matter in our universe that we see is only 5% of what all the planets and stars are made of. 25% Dark Matter. The remaining 80% is dark energy. So it is very unlikely that the expansion will ever stop and start shrinking. Roughly speaking, the Big Crunch is not the future of our universe. If only I had fun though. It's great to think of the Infinite Chain Universe.
এখন প্রশ্ন হচ্ছে, এইযে মহাবিশ্ব সদা সম্প্রসারমান, এটা আমরা টের পাচ্ছিনা কেনো? তাছাড়া সম্প্রসারন ঘটে দুইটা গ্যালাক্সির মধ্যকার দূরত্বে। গ্যালাক্সির ভেতরে সম্প্রসারন কেনো হয় না? আমাদের সৌরজগতে কোন সম্প্রসারণ না হয়ে গ্রহগুলো কি করে কোটি কোটি বছর ধরে একই কক্ষপথে টিকে আছে? পৃথিবীতে আমাদের চারপাশের সবকিছু কেনো দূরে সরে যাচ্ছে না? কেনো আমাদের শরীরের পরমানুগুলা আলাদা হয়ে দিগ্বিদিক ছুটে চলে যাচ্ছে না?
The answer lies in the three fundamental balls of the universe.
1- Gravity
2- Electromagnetic force or electromagnetic force
3- Strong nuclear force or strong nuclear force.
These three balls go against dark energy and make it possible to form any physical structure. The amount of gravity that the stars themselves have inside a galaxy is stronger than that of dark energy, so they do not move away from each other. The same is true of the planets in the solar system.
The atoms of my body survive properly because the atoms are strongly resisted by electromagnetic forces.
Again the protons and neutrons in the nucleus are bound by strong nucleo balls. This ball is the strongest bond ball in the world. Dark Energy cannot take advantage here. So your my body survives as a body. Without these balls, atom formation would not be possible. You don't have any physical structure of mine. The universe would be a space-dessert without any physical structure.
On the other hand, outside the galaxy, where hundreds of thousands of light-years away between two consecutive galaxies; The gravity between them is not so strong there. Gravity loses to Dark Energy. New space is created in the middle. The two galaxies move farther apart.
Now the question is, will the universe continue to expand like this from generation to generation due to the miracle of dark energy? Is there no end to it? Since the Big Crunch is unlikely, the universe will continue to expand. And at every moment his speed will continue to increase. In that case a new future emerges which we will call 'The Big Rip'.
Rip means to tear. In the intensity of expansion, everything in the universe moves away, a kind of 'tearing'.
According to this theory, if the expansion never stopped, its speed would increase to such an unimaginable rate that at one stage even the basic three balls could no longer defend the end. The first push will come on the galaxies. Excellent galactic disks will no longer have beautiful spoilers. Billions upon billions of stars will scatter out of the galaxy. Then the same situation will be in the solar system. The planets will be submissive to the dark energy by disobeying the gravity of the sun. It will drop out of the solar system. Eternity will continue on that path. In the end, the strongest nuclear force that will fight to the last will be defeated. Protons and neutrons will leave the atoms in your body. Suddenly you will disappear into the air. In the Avengers Infinity War, when Thanos's gantlet is read and blown, just as half the population disappears into the air, so does the earth, the people of the earth, the buildings all disappear before our eyes. Homo sapiens was supposed to leave Dharadham long before the incident. If they don't, a terrible outcome awaits them.
There will be no stars, no planets, no galaxies, no superclusters, or at least a piece of rock. Without a few basic particles scattering in all directions, the universe would sink into infinite emptiness and black sphere darkness.
The Hit Death:
Well, I saw two theories. At one point the universe shrinks and gives up its last breath, at another it expands.
What if neither happens?
What if Gravity and Dark Energy are in perfect balance so that neither of these two forces can defeat anyone ?!
If so, we should get a completely different universe. Whose features would be very strange?
The universe will continue to expand, but its speed will gradually decrease. The funny thing is, the speed will slow down and move towards zero, but it will never reach zero.
Perfect is a universe, isn't it? No big crunch, no big rip. Living a Ganjamless Life, Right?
Well, not so much.
If there is only one truth in the world, it is that the end of this universe will surely come one day. In one way or another. Bye hook or bye crook. In the words of Misha Saudagar, tricks.
If these Naphtali of Dark Energy and Gravity have not already defeated us, I am proud to say that we will shoulder that responsibility ourselves.
Yes, according to our third and last theory, we will be the cause of the death of our universe.
I say openly.
The material world around me is fairly orderly The Sun revolves in a stable orbit around the galaxy, while other planets, including the Earth, revolve around the Sun without violating the rules. There is an order in everyone.
Sadly, this order will not last forever. A complete unlike of thermodynamics is incarnated here.
Entropy.
It is difficult to explain what entropy is. Simply put, it means chaos. Chaos. Ganjam. Become random
Imagine a bowl of salt. Inside the container sits the grains of salt side by side. As soon as I shake the box and throw the salts on the table, the grains will spread in an unpredictable, chaotic, random pattern. We will say that the entropy of the grains has increased.
Our universe has a lot in common with the grains of salt. There is a strange tendency in every thing in the world to go from order to order. If you throw a glass on the floor, it will break into hundreds of pieces and spread on the floor. Diameter! Entropy or chaos increased. Pouring tea into the cup. The tea is not being collected in round or straight rods in the cup. Even is spreading across the cup in one pattern. Entropy is also increasing. Doesn't that sound weird? Doesn't it seem like I'm going to say Bhungbhang in the name of physics? The basic idea of entropy is so strange. It takes weird to hear.
You can complain, we can reduce the entropy if we want. The entropy went back to the previous state as soon as the tablecloths were filled with the salt again.
No. If you put the salt in the container again, the amount of entropy will decrease, while doing the work, you will increase the amount of entropy on the other side. The thing is that if you reduce the entropy of one part of the cosmos, you will see that you have increased the entropy of the other end by the same amount. So entropy is ultimately increasing. Its speed is one-way. It cannot be reduced, it is only increasing.
All the energies of the universe are trying their best to bring themselves into a state of complete chaos. Every moment, the sun converts its billions upon billions of kilograms of energy into energy and scatter them throughout the galaxy in the form of photon cones. Even our own bodies are radiating infrared rays around the clock. Walking, sound energy, heat energy is spreading every second. Even if you just survive by eating innocently, it is seen that you are increasing the entropy of the universe.
Whatever you do, the entropy will only increase. Given this, you should ask, will entropy continue to grow forever?
No. It is not infinite. The entropy of the universe will reach its maximum as it grows for hundreds of billions of years. With him the breath of life will go out of this universe. Nothing new will happen. No more stars will be born from the nebula, the old ones will run out of fuel and fade away at some point. No more fuel on earth. Energy will not change from one form to another. The universe will become a lifeless corpse. All worldly things will become obsolete. After all is said and done, a party will survive in this lifeless, eternal world, as the last sign of a once-in-a-lifetime cosmos.
Blackholes.
Then, millions of years later, they too will one day become numerous photons and merge into space.
A fallen universe, where nothing will ever happen again. A silent, motionless, dead universe will lie like this until the end of time.
__________________________________________
According to the most logical scientists, the death of the universe due to entropy is by far the most common. However, no one can say for sure which of these three theories will happen. None of this can be ruled out for sure.
However, it is fairly certain that any one will happen.
Maybe our Universe Parallels are just an innocent part of the myriad multiverse. Even if the story of our universe is over, maybe somewhere else the vibration of life will remain the same.
Or who knows, maybe we really have nothing beyond this huge cosmos, no more universes, maybe no more universes will be born. With the death of this universe, the greatest epic of all time will come to an end. It is a pity that I cannot tell this amazing story to anyone. Everyone will end up together with the Universe. It would be a pity if such a horrible and beautiful episode went to the grave with us. After writing the best story in the world, the writer died without publishing it. What a waste!
আকাশ আব্দুল্লাহ