Astronomy knowledge point

The white hole -  A theory concepts Baperookamo, CC BY-SA 4.0, via Wikimedia Commons From Einstein's theory in mathematics, in the theory of general relativity, it is a rare item, a white hole. The white hole, the twins, the black hole was first invented in the 18th century, the geologist John Mitchell. In those days, the black hole, which is not considered to be a real Einstein-so, it was believed that they did not exist. At the same time, Einstein's general theory of relativity predicts the path of a concept called a white hole. More specifically, it is the mathematics of the general theory of relativity says that the white hole is possible. If you have to take the math of a black hole, and literally, turn on it, and you will get a white hole. Or even a white hole is a black hole for time. Thus, the black hole will not allow a non-issue for the end of a question of crossing the event horizon, an imaginary boundary around a black hole, and there is no matter, it can end whenev...