What is a white hole? What is the difference between a white hole and a black hole?
Equations that describe the formation of a black hole would be equally valid if the direction of time were reversed. In that case you would be describing something like a black hole bursting out with light matter and energy. This might be termed as a white hole! The only problem is to find a way of reversing time! As far as I know, while there is definite evidence for the existence of black holes there is none for “white holes”. Scientists like to speculate and dream even the impossible. You could, of course, say that the origin or origins of the universe was/were just one or more white holes bursting forth just one such explosion if you believe in the big bang theory and more if you want some sort of continuous creation! We know that matter can be converted into energy during certain processes like nuclear fusion. Can energy be converted back into matter? If yes then is it just theoretical or is there an experimental evidence for this? Equivalence of mass and energy has been shown in
