Do you still remember the Unsolved Mystery of the World I watched when I was a child? Did the strange things inside scare you so much that you can't sleep at night, for fear of aliens coming to kidnap people?
In fact, many of these unsolved mysteries have been solved. For example, Bermuda does not have the so-called triangle area at all, and there is also wheat field vicious circle , most of which are artificial.
A book with unsolved mysteries
However, in the universe, there are actually five unsolved mysteries. If they can be solved, it means that humans understand the universe better.
So, what are the unsolved mysteries of the universe?
There are many mysteries in the universe
The mystery of light
mentions light, which is a frequent visitor in the universe, and the distance in the universe needs it to represent it. However, light is a very strange substance .
The essence of light is electromagnetic wave with a certain wavelength range, between 780 and 400nm, which is also the electromagnetic wave wavelength that human eyes can see.
electromagnetic waves that are smaller than or larger than this range are invisible, and the higher the frequency of , the greater the energy of electromagnetic waves, , for example, the frequency of ultraviolet rays is higher than that of infrared , so we have never heard of infrared antivirus, nor have we seen ultraviolet sensing lamps.
The first one to study light in depth is Newton . That's right, it is Newton , the father of mechanics. He is an all-rounder who not only studies mechanics, but also studies optics and mathematics.
light wavelength is at frequency
Newton created a rainbow through prism . It turns out that white sunlight is made of 7 colors.
Niu Jue believes that light is composed of particles of different colors, and optics is also a kind of "grain" .
But Newton's opponent "The Emperor of Spring" Hook believes that is a kind of wave, but because of the age, neither of them can produce convincing evidence.
The battle between light and particle, finally ended in the era of another great god. He is Einstein more than 200 years later.
wave-particle dispute between Newton and Hook
After more detailed research, scientists in the Einstein era discovered the wave-particle duality of light . It is both a particle and a wave. The particle that constitutes light is called photon .
Things seem to be finalized here, but new questions arise again, photons do not have static mass .
The particles we often talk about, such as atom , protons, electrons, neutron , etc., all have mass, but photons do not have mass.
No matter how accelerated particles with mass, they cannot break through the massless photon . This is also . Humans have not found a faster substance than light.
Why does a substance have no mass and how it was born are all as inaccessible as the speed of light.
Photons of light
What is the gravity
If you follow Newton's universal gravitational formula, photons are that violates universal gravitational force, no wonder most celestial bodies cannot absorb light.
But there is a celestial body that can not escape its "palm", it is a black hole.
Didn’t it be said that good light is not bound by gravity?
According to Einstein's gravitational field theory, the key to 's gravity is space-time curvature . The larger the mass, the greater the space-time curvature.
As long as the space-time curvature of a matter is approached, it will be attracted. The difference between is that the force absorbed by different space-time curvatures is different.
super-spatial time curvature black hole
But there is another hypothesis that gravity is caused by graviton , which is a particle, which can be imagined as an invisible line between two objects, and gravitons are the basic matter that makes up the line.
The gravitons and intensity differ between different objects. This is why some celestial bodies cannot absorb light, but some celestial bodies can change the propagation path of light.
However, humans have not found any evidence to confirm the existence of gravitons. Whether it really exists is a mystery.
Does gravitons exist?
Planck scale
The universe is too big, and people can only use light years to represent distance. So what about the minimum size of the universe that exists in ?
of course has it. It is the Planck scale defined by Planck, the founder of quantum physics . You can obtain Planck length, Planck time, Planck mass , etc. through calculations.
For example, Planck's length is 1.6x10^-33 cm . If the substance is smaller than this scale, then it is that cannot be observed.
The big guys of quantum physics
However, some scientists believe that this is not the smallest size, and there is a smaller value in the universe, but so far, no physicist has calculated it.
does not mean that there will be no future. The universe is greater than human imagination, and the smallness of the universe is not easily defined by .
Measurable matter in the universe
Consciousness and matter
Does the universe have consciousness? People belong to a part of the universe, so the universe is the conscious , and consciousness is based on matter.
This is what human philosophy calls materialism . Consciousness cannot be produced out of thin air . It must be based on material.
However, materialism does not exist alone, it has a lifelong enemy - idealism .
Many people criticize idealism, believing that it hinders human progress, which can easily make people feel proud and arrogant.
However, in history, many scientists are supporters of idealism , such as Descartes , which founded the coordinate system . He once said "I think so I am in" .
Descartes: I think so I did not hinder Descartes' academic achievements in
idealistic . Therefore, idealism believes that the universe is generated based on consciousness, and the sun and earth are consciousnesses from the universe.
Whether it is idealistic or materialistic, has their own theories, but they also have certain limitations . In short, no one can convince anyone.
According to materialism, the universe first has matter, then will is born, and finally consciousness shapes today's universe.
. Idealism believes that the universe first has a consciousness, then produces matter, and finally shapes today's universe.
So, where did the first one come from? Is it produced out of thin air?
Eternal War - Materialism and Ideality
Mystery of the Big Bang
The universe comes from a big bang, which seems to have become the conclusion of the birth of the universe. However, the Big Bang is also a hypothesis , a hypothesis that the general public considers to be correct.
In essence, it is still a hypothesis, , so how did the universe come about, is still a mystery .
Big Bang Theory believes that in about 14 billion years ago , the universe we are in was just a point, and finally one day, it exploded. The mass of this point
is very large. According to the law of conservation of mass, the mass of the point is equal to the mass of the universe today.
Cosmic Big Bang
The energy of the explosion is converted into mass , but not a macroscopic celestial body, but microscopic particles . After the explosion of
, the hydrogen atom was born in the universe. It was from it that formed the periodic table of elements that we are familiar with .
The real celestial bodies, that is, the first batch of stars and planets were born after the explosion . The explosion of
also prompted the expansion of space, the universe began to expand , and all matter in the universe was far away from each other.
However, The Big Bang Theory is not the only conjecture , and there are still many scientists with other assumptions.
The first batch of macro celestial bodies were born
For example, astronomical physicist Christopher Wittrick , he built a cosmic framework different from the Big Bang in Heidelberg University .
He believes that the universe is not expanding, its mass has been increasing . As for where the extra mass comes from, other astronomers believe that the universe is connected to other spaces, and there is material communication between .
Unless humans personally reach the center of the universe and the most edge archaeology, the birth of the universe will always be based on hypothesis.
Multiverse
In addition to the above assumptions, there is another terrible guess after careful consideration- civilization created the universe .
simply means that when civilization develops to a certain level, it can create celestial bodies, and gradually upgrade to creating the universe .
Create a celestial body from , to create a star system , then to create Milky Way , supergalaxy, etc., and finally reaches a universe .
There is more than one universe, they are multi-dimensional . The universe can be increased or decreased. The higher the level of civilization, the more it can determine the life and death of a universe.
Who created the universe
Generally speaking, the civilization that created the universe is the highest civilization. The earth, sun and even the universe where we are all from the hands of creation of higher civilizations.
When the higher civilization was created, had already designed the ending , and we were just moving towards the set program step by step.
If this is the case, what exactly is time and space? Do they really exist? Or is it only existed in the created universe?
These five unsolved mysteries may not be able to solve for a long time. Of course, there are more than these unsolved mysteries in the universe, and there are many more.
Mankind has a long way to explore the universe
Mankind doesn't even know that the universe is really big, because the current universe is just the range of light reaching.
