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⚪🌟 සුදු කුහර (White holes) පිළිබදව දැන ගනිමු 🌟⚪
- Thread starter Stimulus mind
- Start date
Good post..... 
Thanks.
A White Hole is the inverse twin of the Black Hole. In a Black hole if you cross the Event Horizon, then there is no escape for you. With a White hole, you cannot cross it's event horizon. It's impossible to get in. Only stuff inside the event horizon gets ejected to the universe.
In 2014, Carlo Rovelli, a theoretical physicist at Aix-Marseille University in France, and his colleagues suggested that black holes and white holes might be connected in another way: When black holes die, they could become white holes.
In 1960, Sir Roger Penrose pointed out that general relativity would also predict the existence of objects that emit matter and energy instead of absorbing them. Later in 1964, the Soviet Cosmologist Igor Novikov also suggested the same. In the 1970s, Stephen Hawking calculated that all black holes should evaporate mass by emitting radiation.
Others like Sir Roger Penrose theorize that a white hole is like an exit for a black hole in another universe. So material would fall into a black hole in one universe and would get ejected into another universe via a white hole.
But note that a White hole violates the Second Law of Thermodynamics which states that the net entropy of the in the universe can either increases or remain constant; it should not be decreased. So the White holes are an impossible possibility.
So far there have been no evidence of White holes..... but in 14 June 2006, NASA’s Swift satellite detected a huge gamma ray burst: the highest-energy type of explosion possible, a million trillion times more energetic than the Sun. And it lasted for… 102 seconds. Scientists believe that gamma ray bursts only last that long during supernovas. But this one, labeled GRB 060614, didn't have a supernova to go with it. As far as we can tell, it was an explosion of white hot light that came from nowhere, and then vanished. And while white holes remain incredibly, stupendously, ridiculously unlikely, that's pretty much exactly what anyone would expect from a white hole. Unless the World witnesses another similar episode or find a reasonable explantion for these bursts, it remains a mystery.
Thanks.A White Hole is the inverse twin of the Black Hole. In a Black hole if you cross the Event Horizon, then there is no escape for you. With a White hole, you cannot cross it's event horizon. It's impossible to get in. Only stuff inside the event horizon gets ejected to the universe.
In 2014, Carlo Rovelli, a theoretical physicist at Aix-Marseille University in France, and his colleagues suggested that black holes and white holes might be connected in another way: When black holes die, they could become white holes.
In 1960, Sir Roger Penrose pointed out that general relativity would also predict the existence of objects that emit matter and energy instead of absorbing them. Later in 1964, the Soviet Cosmologist Igor Novikov also suggested the same. In the 1970s, Stephen Hawking calculated that all black holes should evaporate mass by emitting radiation.
Others like Sir Roger Penrose theorize that a white hole is like an exit for a black hole in another universe. So material would fall into a black hole in one universe and would get ejected into another universe via a white hole.
But note that a White hole violates the Second Law of Thermodynamics which states that the net entropy of the in the universe can either increases or remain constant; it should not be decreased. So the White holes are an impossible possibility.
So far there have been no evidence of White holes..... but in 14 June 2006, NASA’s Swift satellite detected a huge gamma ray burst: the highest-energy type of explosion possible, a million trillion times more energetic than the Sun. And it lasted for… 102 seconds. Scientists believe that gamma ray bursts only last that long during supernovas. But this one, labeled GRB 060614, didn't have a supernova to go with it. As far as we can tell, it was an explosion of white hot light that came from nowhere, and then vanished. And while white holes remain incredibly, stupendously, ridiculously unlikely, that's pretty much exactly what anyone would expect from a white hole. Unless the World witnesses another similar episode or find a reasonable explantion for these bursts, it remains a mystery.
කැමරා ඇසට හසුවූ විශ්වයේ අසිරිය - 2023 වසරේ හොදම තාරකා විද්යා ඡායාරූප 
