Is a singularity infinitely small?
The point where all that mass is trapped is called a singularity. It may be infinitely small, but its influence is enormous.
That would make singularities roughly the size of superstrings, if they exist. A Planck length is 1.6 x 10^-35 meters (the number 16 preceded by 34 zeroes and a decimal point) — an incomprehensibly small scale that is implicated in various aspects of physics.
A singularity is a point in space where there is a mass with infinite density. This would lead to a spacetime with an infinite curvature.
That being the case, singularities never have zero volume, but reach the limiting scale for space-time at about 10^-33 centimeters.
Hence, when used as an adjective in mathematics, infinitesimal means infinitely small, smaller than any standard real number.
Answer and Explanation: No, a singularity is not smaller than the Planck length. The Planck length is the smallest possible measurement that can be used to measure length. A singularity is also not part of space time, so it can't be described in terms of length.
The smallest thing in the world is the quark.
For many years, scientists thought the atom was the smallest thing there was. Then they split the atom and found electrons. After the particle accelerator was invented, they broke the atom into as many small pieces as they could. These little pieces are called quarks.
Under causal set theory, space-time is not a smooth continuum, as it is in GR, but rather made up of discrete chunks, named "space-time atoms." Since nothing can be smaller than one of these "atoms", singularities are impossible,Bruno Bento, a physicist studying this topic at the University of Liverpool in England, ...
Protons and neutrons make up the core, or nucleus, while teeny electrons cloud about the nucleus. Protons and neutrons can be further broken down: they're both made up of things called “quarks.” As far as we can tell, quarks can't be broken down into smaller components, making them the smallest things we know of.
Black holes are singularities: points of infinitely small volume with infinite density. Such incredibly compact objects cause infinite curvature in the fabric of spacetime. Everything that falls into a black hole is sucked toward the singularity.
Is there proof of a singularity?
Traditional models of our Universe
Although there is no direct evidence for a singularity of infinite density, the cosmic microwave background is evidence that the universe expanded from a very hot, dense state.
A Curvature Singularity is best exemplified by a black hole. At the center of a black hole, space-time becomes a one-dimensional point which contains a huge mass. As a result, gravity become infinite and space-time curves infinitely, and the laws of physics as we know them cease to function.
The universal origin story known as the Big Bang postulates that, 13.7 billion years ago, our universe emerged from a singularity — a point of infinite density and gravity — and that before this event, space and time did not exist (which means the Big Bang took place at no place and no time).
This singularity, a point smaller than an atom, is thought of by many scientists as having infinite density and mass. At the moment of the Big Bang, it rapidly expanded, creating all the space, time, matter, and energy of our physical universe.
Ziggy : the point singularity is zero-dimensional, and it's a "mathematical concept".
The smallest version of infinity is aleph 0 (or aleph zero) which is equal to the sum of all the integers. Aleph 1 is 2 to the power of aleph 0. There is no mathematical concept of the largest infinite number.
Currently, the smallest physical size scientists can measure with a particle accelerator is 2,000 times smaller than a proton, or 5 x 10^-20 m. So far, scientists have been able to determine that quarks are smaller than that, but not by how much.
As far as we know, there is nothing smaller than a quark that is still considered a unit of matter. However, there are six different kinds of quarks of different sizes.
A zeptosecond is a trillionth of a billionth of a second. That's a decimal point followed by 20 zeroes and a 1, and it looks like this: 0.000 000 000 000 000 000 001. The only unit of time shorter than a zeptosecond is a yoctosecond, and Planck time. A yoctosecond (ys) is a septillionth of a second.
In fact, since according to relativity, singularities, by definition, are infinitely small, and expected to be quantum mechanical by nature, a theory of quantum gravity would be required to describe their behaviour.
Is a singularity faster than light?
In effect, the singularity divides the universe into two: a world where everything moves slower than the speed of light, and a world where everything moves faster. The laws of physics in these two realms could turn out to be quite different.
The biggest single entity that scientists have identified in the universe is a supercluster of galaxies called the Hercules-Corona Borealis Great Wall. It's so wide that light takes about 10 billion years to move across the entire structure.
Quark (noun, “KWARK”)
Subatomic means “smaller than an atom.” Atoms are made up of protons, neutrons and electrons. Protons and neutrons are made of even smaller particles called quarks. Based on the evidence available today, physicists think that quarks are elementary particles.
Guinness World Records recognizes Nanoarchaeum equitans as the smallest living organism.
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. Something has to replace the singularity, but we're not exactly sure what.
Allegedly a sentient quantum singularity, Singularity can teleport dozens of people vast distanes, fly, cross dimensional barriers, and use osmosis to absorb objects or people into her form, within which a pocket universe apparently exists.
That's about the same amount of energy in 10 trillion trillion billion megaton bombs! These explosions generate beams of high-energy radiation, called gamma-ray bursts (GRBs), which are considered by astronomers to be the most powerful thing in the universe.
This length is the Planck length, and it is 1.6 x 10-35 meters.
Everything in the universe (except energy) is made of matter, and, so, everything in the universe is made of atoms. An atom itself is made up of three tiny kinds of particles called subatomic particles: protons, neutrons, and electrons.
According to general relativity, the inward gravitational collapse never stops. Even though, from the outside, the black hole appears to stay a constant size, expanding slightly only when new things fall into it, its interior volume grows bigger and bigger all the time as space stretches toward the center point.
Is there a theoretical limit to the size of a black hole?
There is no theoretical upper limit to the mass of a black hole. However, astronomers have noted that the ultra-massive black holes (UMBHs) found in the cores of some galaxies never seem to exceed about 10 billion solar masses.
Well, even though black holes are extreme in many ways, they don't have infinite mass—and it's mass that determines the force of their gravity. Some black holes—known as stellar black holes. —have about the amount of mass that very massive stars do.
The Big Bang theory says that the universe came into being from a single, unimaginably hot and dense point (aka, a singularity) more than 13 billion years ago. It didn't occur in an already existing space. Rather, it initiated the expansion—and cooling—of space itself.
Nothing can escape from within, not even light. Current theories say there's a point of infinite density in the centre – the singularity. A jump into a black hole is a one-way trip. Black holes are regions of space where gravity is so strong that nothing can escape them, not even light.
Near a black hole, the slowing of time is extreme. From the viewpoint of an observer outside the black hole, time stops. For example, an object falling into the hole would appear frozen in time at the edge of the hole.
Like anything in space, the compressed singularity hidden behind a black hole's event horizon — the point beyond which not even light can escape — spins freely with all the momentum it's picked up over the eons.
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.
A gravitational singularity, spacetime singularity or simply singularity is a condition in which gravity is so intense that spacetime itself breaks down catastrophically. As such, a singularity is by definition no longer part of the regular spacetime and cannot be determined by "where" or "when".
In the beginning, there was an infinitely dense, tiny ball of matter. Then, it all went bang, giving rise to the atoms, molecules, stars and galaxies we see today.
The issue was solved in 1965-66 when Roger Penrose and Stephen Hawking proved that singularities existed in all solutions to Einstein's equations with some natural, generic features.
How will the universe end?
Eventually, the entire contents of the universe will be crushed together into an impossibly tiny space – a singularity, like a reverse Big Bang. Different scientists give different estimates of when this contraction phase might begin. It could be billions of years away yet.
An atom is the smallest particle of an element, having the same chemical properties as the bulk element. The first accurate theory explaining the nature of matter was Dalton's Atomic Theory: 1. All matter is composed of atoms, and atoms are indivisible and indestructible.
Zero Dimensions: A point has zero dimensions. There's no length, height, width, or volume. Its only property is its location. You could have a collection of points, such as the endpoints of a line or the corners of a square, but it would still be a zero-dimensional object.
A singularity is a region of space where the curvature of spacetime becomes infinite. Due to the cosmic censorship conjecture, most singularities are hidden behind event horizons. Singularities are regions of space where the density of matter, or the curvature of spacetime, becomes infinite.
A black hole is actually a four-dimensional object. A black hole extends across all four physical dimensions of the universe. The four dimensions that form the background framework of the universe consist of three spatial dimensions and one time dimension.
This singularity, a point smaller than an atom, is thought of by many scientists as having infinite density and mass. At the moment of the Big Bang, it rapidly expanded, creating all the space, time, matter, and energy of our physical universe.
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.
Protons and neutrons make up the core, or nucleus, while teeny electrons cloud about the nucleus. Protons and neutrons can be further broken down: they're both made up of things called “quarks.” As far as we can tell, quarks can't be broken down into smaller components, making them the smallest things we know of.
The density at the center of a black hole is infinite (it's a famous "singularity", which leads to difficulties in modern cosmology).
In summary, that singularities (with "infinities") in, for example General Relativity, are avoided/ignored or thought to not exist because if they would actually have infinities, they would really/actually break literally all laws and could not be "governed"/described by any model/theory.
Do black holes bend space time infinitely?
A “gravitational singularity” sits at the center of a black hole. This is a point where the curvature of spacetime is infinite (I know, it's hard to comprehend).
The smallest version of infinity is aleph 0 (or aleph zero) which is equal to the sum of all the integers. Aleph 1 is 2 to the power of aleph 0. There is no mathematical concept of the largest infinite number.
As far as we know, there is nothing smaller than a quark that is still considered a unit of matter. However, there are six different kinds of quarks of different sizes.
Hence Singularity would be a very compact solid, since whenever a solid is compressed beyond a point of no return singularity is formed.
