How big would it be to compress the entire universe into a single atomic nucleus density?

Very big. Because there is a lot of matter in the entire universe, the density of compressing the entire universe into a single atomic nucleus will be very large, beyond human cognition.

There is no accurate data on the mass of the universe, we can only estimate that according to the mass of the Milky Way galaxy is about 200 billion solar masses, about 4x10 41kg. There are roughly 1 trillion 10 trillion galaxies in the universe, and based on an average of 1 trillion galaxies, the mass is about 4x10 53kg. The density of a neutron star is equivalent to the density of an atomic nucleus, which is about 102 billion tons cm3.

Based on the calculation of 1 billion tons of cm3, the volume of the universe can be calculated as 4x10 41cm3, which is converted into cubic kilometers, which is 4x10 26km3. Let these volumes become a sphere, and the density of the compressed nucleus is a sphere with a radius of about 100 million kilometers.

It should also be very large. Because the universe has so far had no edge, even if it were so compressed, it would be an incomparably large object, immeasurably large.

That wouldn't be a mathematically significant point either! There will also be volume!

A neutron star is a star with atomic nuclei next to each other.

Infinite, but smaller than the universe.

How big is it's just virtual, because you're not that big.

It's still as big as you see.

Infinity. Because the universe is infinite, it is infinite even if it is compressed to the density of the nucleus.

If the structure of the atom is calculated, the universe will be compressed into a nucleus with a radius of 100 million kilometers.

How the universe is compressed is still the universe, only enlargement, can not change the nature of the universe, the laws of nature, you think too crazy, you can wake up Einstein.

First of all, the universe is boundless, no matter how you compress it, it's still boundless! Secondly the density of the universe is also impossible to reach the density of atoms, which requires a certain amount of pressure to form, and water to provide? So in the future, go to the alarm clock, don't be sleepy, and you won't be cranky!

First of all, we need to know how big the entire universe is to be able to ......I think human beings will never know how big the universe is.

It is impossible to nucleate the size, and the volume of matter has a limit, it will not be infinitely small! The neutron star is proof of this!

Up in the air. Because the exact size of the universe is not yet known, it is still expanding, so there is no way to know for sure.

Very small, not calculated, it should be smaller than the orbit of Pluto, and someone upstairs has calculated the approximate radius of 100 million kilometers.

The universe is infinite, how to compress it? If it can be compressed, it means that the universe is not infinitely large. So what's beyond the universe?

You don't even know how big it is, you dare to compress it, do you say you're human!

Chen's Universe Model: I just want to weakly ask, who will press and who will provide the energy?

The universe is boundless, has no beginning and no end. Compression is also infinite.

This is a false proposition. The universe is boundless, where does the whole come from?

There are no words or numbers to describe it!

Infinity. At the same time, it is infinitesimally small.

If the matter of the entire observable universe is aggregated into the material form of neutron stars, the corresponding radius is only hundreds of millions of kilometers, which is far less than the scope of the solar system.

The atom is composed of electrons and nuclei outside the nucleus, and the nucleus is composed of neutrons and protons, but there is actually a large gap between the electrons outside the nucleus and the nucleus, and the volume of the nucleus under normal circumstances only accounts for one millionth of the entire atom, and there is also a large gap between protons and neutrons in the nucleus.

With enough energy, electrons can fall into the nucleus of an atom and combine with protons to form neutrons, which is how neutron stars in the universe are formed, and the density of neutron stars is as high as 10 11kg per cubic centimeter; At present, the observable universe in which human beings can live has a radius of 46.5 billion light-years, a mass of about 10 53 kg, and trillions of galaxies.

The visible matter in the universe, the elements hydrogen and helium make up the vast majority, and if we consider that all the atoms in the universe are converted into neutrons, and then the neutrons are next to each other, then it can be roughly estimated that the volume of all the matter in the universe is composed of:

v = m = 10 36 cubic meters;

The corresponding sphere radius is about 600 million kilometers (Mars orbits 100 million kilometers and Jupiter orbits 100 million kilometers), but this is only a rough estimate.

In fact, if all the matter in the universe had been gathered together, it would have collapsed into a black hole long ago, and it would not be possible to form the material form of a neutron star, and the theoretical upper limit of the mass of a neutron star would only be about 3 times the mass of the sun.

If all the matter we could observe collapsed into a black hole, with a mass of up to 10 53 kg and a Schwarzschild radius of up to 15.6 billion light-years, no matter would be able to escape from this region.

Of course, the above calculations are all based on the observable universe, and no one knows how big the universe we are actually living in is at present, and perhaps the scope of our observable universe is far wider than our observable universe.

In fact, this hypothesis is not valid, and the attraction and repulsion between the nuclei of the atoms are very large. And when you get together, you have to see what kind of density people gather to. If we were to gather the entire observable universe into neutron stars, it would be about the size of a solar system.

In fact, there are large gaps between the nuclei in matter, and if all the nuclei are compressed together, there may not be a large area, which is the size of the Milky Way, but the universe is vast, and we can't say how big a star can be gathered.

The volume of the atomic nucleus is only one millionth of the entire atom, but it is impossible to remember how many atoms and how much matter there are in the universe.

Within the scope of the universe that humans can observe, all matter should be in the Milky Way, and if they are compressed to a certain extent, they will not be as large as the Milky Way, because this is only the visual range of human beings.

If the nuclei of all the matter in the universe are compressed together, there will be a large change in energy, but their volume will not change very much.

Chan's Cosmological Model: Who Will Provide the Energy for Compression? So, the assumption is not true.

It's going to be as big as a hammer!

The density of a neutron star is indeed the density of the atomic nucleus, and the reason why the Earth did not collapse into a neutron star is because the energy of the Earth's internal reactions is sufficient.

Because the gravitational pull of the Earth is very small relative to the density required by neutron stars. In other words, the Earth does not yet have the conditions to collapse into a neutron star. The amount of energy required for a neutron star is enormous.

Neutron stars are very massive, and the energy contained in the nuclei is also very large, so their densities are very close, and there is no evidence that the Earth will collapse into a neutron star in the future.

According to the relevant data in physics, the density of neutron stars is the density of atomic nuclei, and the earth has lived for more than four billion years, and its interior is still undergoing fusion, and it will not collapse into a neutron star at present.

After research by scientists, it has been discovered that the density of a neutron star is the density of its atomic nucleus. This is because the current internal nuclear fusion is enough to produce the energy needed for the Earth to function, so it will not collapse into a neutron star.

The reason for the occurrence of universal repulsion force (brief description): When the high-energy particles running in the universe pass through the matter (celestial body or particle), some of the high-energy particles that are intercepted and absorbed interact with the matter (celestial body or particle), and realize the energy exchange according to the law of conservation of energy conversion mv2=e=mv2, and radiate the corresponding material energy, which is formed in the surrounding space"into energy superposition", i.e., the strong energy zone. This strong energy zone is"Repulsion"Range.

Due to the prevalence of this kind in the cosmic space"Repulsion", so it is also called"Repulsion"。

Strong interaction force.

The theory of strong interactions is quantum chromodynamics (QCD).

The strong interaction is the force acting between hadrons, the strongest known fundamental force between the four universes, and the shortest range (in the range of about 10 (-15) 10 (-10) m). The nuclear force between nucleons is a strong interaction, which resists the strong electromagnetic force between protons and maintains the stability of the nucleus. Now physicists believe that the generation of strong interactions is related to quarks and gluons.

The strong interaction is the force acting between hadrons, and is the strongest known basic force between the four universes, and its range is in the range of 10 to the power of 15 m. The strong interaction overcomes the strong repulsive force generated by the electromagnetic force and binds the hadron tightly into the nucleus.

Because most of the mass in an atom is concentrated in the nucleus.