According to the principles of general relativity, the universe can not support these types of singularities because event horizons were primarily introduced to reconcile the issue of spacetime breakdown near black holes. Since white holes are reverse black holes, they would also be formed by a gravitational singularity - a point in spacetime where the gravitational field becomes infinite - however a white hole is a “naked” singularity, meaning it does not have an event horizon. SEE ALSO: Stephen Hawking Proposes New Theory to Resolve Mystery of Black Holes So if a white hole did in fact exist, it would be very unstable and likely only last a few seconds before turning back into a black hole.Īn important constraint to white holes is that they violate the second law of thermodynamics, which states that disorder (“entropy”) in the universe can either remain the same or increase but it can never decrease. However, time can’t go backwards can it? It turns out the theory of relativity does not care if time goes forward or backwards - if it can go one way, it can easily go the other - but as we know, time tends to only move forward. White holes are just a mathematical solution to the laws of general relativity which imply that if black holes exist in the universe, then a white hole should also exist since they are time-reversals of a black hole. For a non-spinning black hole, the size of the event horizon is given in terms of the mass of the black hole via the Schwarzschild radius.We have all heard of black holes, but have you ever heard of white holes? They are hypothetical features of the universe and are considered to be the opposite of a black hole - a black hole sucks in material where nothing can escape, while a white hole spits out matter and nothing can get in. This is possible to do until you cross the event horizon, at which point you will inevitably hit the singularity. ![]() If you do start falling into a black hole, you can either escape by accelerating away from the black hole, or reach a stable orbit by accelerating in a direction perpendicular to the line connecting you and the black hole. Therefore there is no general way to answer your question without having a model of what other things are in the Universe, at least things that are close enough to the black hole that their influence competes with the black hole's. As a result, you experience pulls in different directions and don't fall toward one particular object unless the gravitational pull for that object is stronger than the accumulated gravitational effect of all other bodies in the Universe. In the real Universe, there are more things than just you and one black hole. In a Universe with just you and the black hole, if you do not take action to move away from the black hole or to orbit the black hole, given enough time it will pull you in no matter where you start from. If the mass of the supermassive black hole I have found out (~100 000 000 * 'the mass of the Sun'), the others necessary data takes more time. In such case let's take the supermassive black hole to evaluate the upper bound of the safe distance from the black hole without starting moving towards it. There are three types of black holes and stellar black holes together with supermassive black holes prevalent in the discovered universe. Apparently, it was discovered black holes with intermediate-mass are the more rarest ones. ![]() Going further I was trying to evaluate the mass of the 'average' black hole. It is all depends on the radius and the mass of the object, in our case a black hole. From another perspective we might look at this issue as a gravity well where we should escape from - get enough speed, pass some distance. In the first iteration I know about the 2nd and the 3rd cosmic speed that let you reach the orbit and leave it respectively. Just for the sake of curiosity I am trying to understand how far we should stay away from the black hole to avoid influence of its gravity on us.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |