Is the black hole a portal to another world?

When sucked into a black hole, humans are said to still have a slight chance of escaping from it, returning to their world or to another world.

According to Live Science, that's because black holes can bend space inside it, bringing points closer apart. Theoretically, there are the following ways to get rid of black holes.

Get rid of the attraction of the black hole by Hawking radiation theory

The first point must be determined that the black hole is not an empty space, but a place of huge amounts of matter in an extremely small area called "singularity".

Black holes attract objects around.(Photo: NASA).

As you move closer, the speed needed to escape the black hole's gravitational field increases. At some point, the escape velocity is greater than the speed of light (299,792km / s). This velocity is much greater than the velocity escaping from the Earth's surface, also known as secondary speed, about 11.2 km / s.

Nothing can be faster than light so nothing can escape the black hole. However, just like a vacuum cleaner or drainage hole in a bathtub, a black hole does not attract everything around it. It only sucks things that are inside the event horizon . As more and more matter is sucked into the black hole, the radius of the event horizon becomes wider. It can be imagined that a black hole is like a ball pointing to matter.

However, what is hidden in the event horizon is still one of the mysteries. Most scholars believe that black holes are a singularity. All the material that the black hole sucks in will be compressed at a point of extremely high density. If it falls into a black hole, the human body will first be stretched out like spaghetti (pasta effect) , then dissipate into nothingness. Human matter will merge into the event horizon radius, eventually escaping according to Hawking radiation theory.

Gravity well.(Photo: Wikipedia).

Calculations by physical prince Stephen Hawking show that black holes emit photons and thus, the black hole fades in mass by following Einstein E = mc ^ 2's famous formula, energy and mass are equivalent . So over time, black holes also evaporate, but this takes a long time.

A small hole with the mass of the Sun takes 10 caps 87 years to evaporate and turns into an explosion of gamma rays, while the age of the universe is only 14 billion years (14 x 10 caps 9 years). However, according to Hawking's theory, the information of a lost black hole cannot be recovered when it evaporates, so escaping the black hole according to Hawking radiation theory is not a good idea.

Wormhole

The gravitational theory that bends space can be thought of as the dimples left when a Japanese wrestler rolls on a carpet. Any object creates a " gravity well" . The well will deepen as it approaches the center of the object. For example, a planet has a gravitational well, but the more you approach the core of a spherical planet, the more well it will become flat. From that point on, any ordinary object has a well shaped depression-like well.

Black holes are not like ordinary objects, they bend the space as strongly as possible. When approaching the singularity at the center of the black hole, the curvature of space is infinite. The space is bent like a hole with a smaller size and greater slope, until vertical as an indefinite indentation. That is a mystery.

Scientists use Einstein's theory of relativity to describe space bending , but Einstein's equations are broken at singular points. These singularities are very small, and there we have to see the effects of quantum mechanics. However, no one has been able to find a way to make quantum mechanics work with gravity to see what a black hole looks like.

Black holes are not static.

Moreover, black holes are not static. Any object in space tends to spin. That means if the singularity turns fast enough, it can take the shape of a curve instead of a point. A bizarre curve can be a portal to other universes as in the science fiction novel "Ring" by Stephen Baxter, HarperCollins publisher. Thus black holes can be one, a gate through space and time.

However, the hypothetical ring as a gate is an uncertain thing. First, no one knows whether the bizarre ring really exists. Another problem is that when scientists try to simulate deep holes made from mathematical black holes, they are always having problems keeping the gate stable.

Previous studies by theoretical physicists show that the greatest ability to create deep holes is exotic matter , the kind of material that has a negative mass . But there is still no clear idea about this.

Finally, according to physicist Hawking, no one has witnessed traveling through time. Therefore, all theories about black holes or deep holes are relative.