BLACK HOLE & HAWKING RADIATION ( +ve CHARGE )

 

Imagine you are a supermassive black hole, the ultimate cosmic glutton. You devour anything that comes near you, even light itself. You are so massive that nothing can escape your gravitational pull, not even your own burps. You are the king of the universe, and you don't care about anything else.

But wait, what is that tiny flicker of radiation coming from your edge? Is that a sign of indigestion?

No, it's Hawking radiation, named after the brilliant physicist Stephen Hawking who predicted its existence in 1974.

Hawking radiation is the result of quantum weirdness happening near your event horizon, the point of no return for anything that falls into you.

According to quantum theory, empty space is not really empty, but full of virtual particles that pop in and out of existence in pairs. Normally, these particles annihilate each other quickly and have no effect on anything. But near your event horizon, something strange happens.

Sometimes, one of these particles falls into you, while the other escapes to infinity. The escaping particle becomes real and carries away some energy. The falling particle has negative energy, which means it reduces your mass and energy.

This process happens all the time, but it is very slow and weak. You barely notice it at first, because you are so huge and hot. But as you lose mass and energy, you also shrink and cool down. This makes Hawking radiation stronger and faster, creating a feedback loop that accelerates your evaporation.

Eventually, you will become so small and cold that you will emit a final burst of radiation and disappear completely.

How long will this take?

So, if you are as massive as the Sun, it will take about 10^67 years, which is much longer than the current age of the universe (about 14 billion years). If you are as massive as the Earth, it will take about 10^49 years, which is still very long. But if you are as massive as a mountain, it will take only about 10^-8 seconds, which is very short.

So don't worry too much about Hawking radiation if you are a supermassive black hole. You have plenty of time to enjoy your feast before you fade away. But if you are a microscopic black hole, you better watch out. You might explode any moment now.