All About Black holes Part-4

Research Overloaded

A black hole is a true “hole” in space: Anything that crosses the edge of the hole – called the “horizon” of the hole – is swallowed forever. For this reason, black holes are considered an edge of space, a one-way exit door from our universe; nothing inside a black hole can ever communicate with our universe again, even in principle.

However black holes are even stranger than that. As you get closer to a black hole, the flow of time slows down, compared to flow of time far from the hole. (According to Einstein’s theory,anymassive body, including the Earth, produces this effect. Earth’s gravity is so weak that the slowing of time is not noticeable, but the effect has been confirmed using sensitive instruments. For example, at sea level you age one-billionth of a second less every year than you would if you lived on top of…

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