INSIDE SCIENCE

1. Today we are well aware those Black holes are the objects that have a greater gravity than any other object in the universe. But do you know why they are known by the word “ Black hole ”? Of course, black holes were predicted a hundred years ago. But the word black hole was first used by the American astronomers John Wheeler In 1967 . 2. The temperature of the accretion disc outside a blackhole can reach millions of degree Celsius. But you may surprise to know that studies have shown that the central temperature of a supermassive black hole can be up to 1.4×10 -14 kelvin. This is an extremely freezing temperature. This temperature is very close to absolute zero but not equal to absolute zero. In fact the absolute zero temperature is -273 0 15 Celsius. At this temperature, the movement of atoms stops completely. If we talk about the coldest place, it is NASA’s Cold Atom Laboratory with a temperature of -273 degree Celsius. This is also exactly one degree less than absolute ze...

  A s we know the Big bang happened 13 billion years ago. Because of Big bang everything came into existence that we know everything and all that remains to be known .The scientists has different theories on whether the big bang happened or not, but now it has been completed proven that there was a big bang .But some scientists believe that their entire universe is moving inside a black hole .There is a reason for them to believe so, which may be true. Because we still don’t know what exactly happens inside a black hole .Or whatever goes inside the black hole, where does it end up. But we know how black hole is formed .scientists believe that their entire universe could be inside one black hole , Because there are many similarities between the big   bang and a black hole . Just like when the big bang happened, the whole universe was contained in one small Atom. Which is also called singularity .Similarly, when a star becomes a black hole, it also collapses in its own grav...