The initial singularity
Can a black hole ever explode?
Answer: Black holes don't really “explode” , which implies that they generate a large outburst of energy which ultimately tears them apart, but they do have outbursts (also, unfortunately, referred to as “explosions”).
Can singularities be destroyed?
There is nothing we could throw at a black hole that would do the least bit of damage to it. Even another black hole won't destroy it – the two will simply merge into a larger black hole, releasing a bit of energy as gravitational waves in the process.
What is the singularity problem?
Singularity problem is a long-standing weak point in the theory of general relativity . Most scholars assume that the solution for this singularity consists in quantum mechanics. ... Hear we show that gravitational self-energy has a negative value can solve singularity problem and rescue general relativity.
How is a singularity infinite?
A gravitational singularity, spacetime singularity or simply singularity is a location in spacetime where the density and gravitational field of a celestial body is predicted to become infinite by general relativity in a way that does not depend on the coordinate system.
What is inside a Blackhole?
HOST PADI BOYD: While they may seem like a hole in the sky because they don't produce light, a black hole is not empty, It's actually a lot of matter condensed into a single point. This point is known as a singularity .
Can a human survive a black hole?
Even light, the fastest-moving thing in our universe, cannot escape – hence the term “black hole.” The radial size of the event horizon depends on the mass of the respective black hole and is key for a person to survive falling into one. ... A person falling into a supermassive black hole
Does time stop in a singularity?
When you hit the singularity of a black hole, time stops for you simply because you're annihilated . This is similar to what happens at the big bang singularity: any observer would have been annihilated by the conditions of the early universe in which the temperature and density diverged to infinity.
Has singularity been proven?
A singularity is a point in space where there is a mass with infinite density. ... Singularities are predicted to exist in black holes by Einstein's theory of general relativity, which is a theory that has done remarkably well at matching experimental results. The problem is that infinities never exist in the real world .
What happens if a person goes into a black hole?
The gravitational attraction of a black hole is so strong that not even light can escape it . Spaghettification: A black hole would stretch an astronaut's body into a thin ribbon, since the gravity pulling on their feet is so much stronger than on their head. ...
Is a singularity infinitely small?
At the center of a black hole is what physicists call the “singularity,” or a point where extremely large amounts of matter are crushed into an infinitely small amount of space . ... Like a bottomless hole in a rubber sheet, the force becomes infinitely bigger as objects travel further and further into the hole.
What happens inside a singularity?
The singularity at the center of a black hole is the ultimate no man's land: a place where matter is compressed down to an infinitely tiny point, and all conceptions of time and space completely break down . And it doesn't really exist.
What is a singularity for dummies?
A singularity means a point where some property is infinite . For example, at the center of a black hole, according to classical theory, the density is infinite (because a finite mass is compressed to a zero volume). Hence it is a singularity.
Has anyone died black hole?
The good news about massive black holes is that you could survive falling into one . Although their gravity is stronger, the stretching force is weaker than it would be with a small black hole and it would not kill you. ... According to Stephen Hawking, black holes are slowly evaporating.
What are the 4 types of black holes?
And anything that ventures too close—be it star, planet, or spacecraft—will be stretched and compressed like putty in a theoretical process aptly known as spaghettification. There are four types of black holes: stellar, intermediate, supermassive, and miniature .
Does time stop in a black hole?
Near a black hole, the slowing of time is extreme. From the viewpoint of an observer outside the black hole, time stops . ... Inside the black hole, the flow of time itself draws falling objects into the center of the black hole. No force in the universe can stop this fall, any more than we can stop the flow of time.
