What are White Holes? - Universe Today

WebWhen a star dies, it collapses inward rapidly. As it collapses, the star explodes into a supernova —a catastrophic expulsion of its outer material. The dying star continues to collapse until it becomes a singularity —something … WebFeb 4, 2024 · The short answer, unfortunately, is no. White holes are really just something scientists have imagined - they could exist, but we've never seen one, or even seen clues that one may exist. For now, they are an idea. To put it simply, you can imagine a white hole as being a black hole in reverse. So if time was running backwards, black holes ... nike sweatshirt blue and white

WebAug 14, 2024 · $\begingroup$ The classical solution for a black hole is given by schwarschild metric with parameter M as the mass of the central object. A negative value of this parameter results in a naked singularity. On the other hand Schwarschild solution with positive provides a white hole part that, as you say, acts like an opposite black hole … WebMar 15, 2010 · 447. abomb365 said: If black holes usually form when stars collapse, how do white holes form? A white hole is the time reverse of a black hole, and is thus forbidden due to the second law of thermodynamics. To put it another way, we aren't going to be seeing any white holes out there for the exact same reason that we won't see scrambled eggs ... WebNov 24, 2024 · If the past singularity produces photons, then those would come out, and the white hole could look bright. If the past singularity doesn't produce photons, then it would look black. If you look at how the light cones work out, it is not possible for the white hole to have an accretion disk of matter falling into it. nthpower 電動油圧ジャッキ5t