The White hole
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You might have listen a lot about black hole,We have also posted an article on Black hole in this blog.But do you know White hole?Very few of us know about it.We know that black hole capture all the object that come near to it.If any object cross the event Horizon, it is not only difficult but also impossible for them to escape from it.We know it even capture the photons particles of light and don't let it to escape from Black hole.We know it even destroy the time inside it I.e,time doesn't exist in black hole. We are going to know how is white hole in comparison to black hole.Let's explore some mathematical and Theoretical principle about White hole;
What is white hole?
It is clear from its name that it is opposite of black. Exactly it show all the properties that is opposite to black hole. Black hole capture the celestial bodies but White hole release celestial bodies and never let it to come inside it once it is released. We don't have any strong evidence for the existence of White, it seems theoretically possible. But some physicist is against it because it doesn't follow the law of thermodynamic. The second law of thermodynamic breakdown for it.What is second law of thermodynamic
Entropy
Second law of thermodynamic States that the entropy of the object increase or remains constant but never decrease. Now you may think what is entropy and how can we identify it is increasing or decreasing? Simply we can understand it as disorder of object.We measure it we have to consider the initial condition of object and final condition of object. When we compare the final condition with initial we find disorder.That is entropy.when we see the disorder, we can say the entropy of an object is increased. We can understand it from the experiment"Take a paper Tear it 2 or 3 times ,Now make it as it was.you may try to attache it using fevicol or tape but it will never return to it's initial state, you can tear again but can't make it as it was "This is entropy you can increase the entropy (can tear paper again)but you can't decrease entropy (returne to it's initial state)Everything in this universe may or may not increase entropy, but it is impossible to decrease the entropy.Time is also an example of entropy. it also once pass never return.Infact we feel time due to entropy. If the entropy start to decrease we can't decide weather the time is moving forward or backward. If the entropy stop the time will also stop.If the time stop entropy also stop.we feel change in object due to entropy. We can decided the old and new things due to entropy. When we think anything old or new we compare it with its initial condition, if we find changes we can say it is old and this changes can't be reduced.This is entropy. There is existence of black hole because it follow the rule of entropy or second law of thermodynamic. but in case of white hole it doesn't follow the second law of thermodynamic. White hole push the new celestial bodies from its inside it means the entropy decrease, which is not possible. Physicist don't think it really matter in the universe. If it really exist, its life span must be no longer than few seconds.
Most of you may think that if it doesn't exist why the astronomer take interest in it.In fact it is the solution of the theory of relativity proposed by Einstein. According to general theory of relativity and Newtonian physics. If the time moves forward it must move backward.we know time travel can be done from black hole but only in future. In the case it gives birth to the concept of white hole. It is believed we can travel in future using black hole and in past using white hole. Great scientist Stephen Hawkins was believing the existence of white hole. If the white hole really exist. Let's try to know its formation using scientific prediction and hypothesis.
Formation of white hole
We know that when all the hydrogen (Fuel)Of star is consumed.it start compressing due to its gravity and changes to size even smaller than piece of sand,its gravity increase by 1lakh time than other star. It is called gravity singularity. When any object come near to it, it Star capturing and never let to be escaped. The object is black hole. According to Einstein and Newtonian physics principle ,Matter can neither be created nor be destroyed completly but it can change its state. Let's consider black hole as a closed room where the celestial bodies is captured for forever. If the black hole is closed room then the captured celestial bodies may be safe there as it can't be destroyed completely. But black hole release radiation and its start contracting, after long period of time it changes to vapour and disappeared in space but where is that celestial bodies which was captured on it.If the black hole die,where is that captured celestial bodies because it can't be completely destroyed. In this case it give birth to new theory of White hole in science. It is believed, black hole convert to white hole at the end of it and start pushing the captured object.If the white hole exist, we can get the answer of phenomenon of big bang and how the universe created from particles even smaller than piece of sand. If White hole exist may be big bang white hole which is releasing the captured object,that's why universe is still expanding. If the white hole is true prediction then our main universe may be extermly expand than present universe. It may be possible that we are still in a black hole because big bang and big crunch will happen again.this process continue till the death of universe. If we agree with Stephen Hawkins "Black hole and white hole is connected to each other.Black hole is beginning where as white hole is end. Black and white hole combine with each other and make portal to parallel universe. We can travel in the parallel universe using black hole because in gravity singularity time also changes to space.If it is true we can travel in our future and past too.
On 14th June 2006,A gamma ray explosion was observed which was captured by Sweet satellite of NASA. This phenomenon is still a mystery for astronomer as it doesn't match with any event of space. This explosion was named as GRB060614.The explosion of gamma ray remains for few seconds but this explosion remained for 102second which is not possible for gammas ray explosion in the view of science. It was predicted the explosion was 1billion times larger than the Sun.
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