The speed of light is the fastest, why does the human body feel no sense when light passes through i

<>The speed of light" is just a speed or a number, it itself will not bring harm to people, only the photons that can really affect the macroscopic world are the photons that fly at the speed of light, although the rest mass of the photon is 0, but it is born at the speed of light after all, so there will be some relativistic mass.

The special theory of relativity tells us that the faster an object moves, the more massive it is, and although we are still in the low-speed space stage, we are not able to measure how much mass is added by a rocket in a high-speed motion, but common sense tells us that a bird can hit a big hole. <>

Although the speed of ordinary solar photons is as high as 300,000 kilometers per second, its energy is too low to kill humans like bullets, but if people stay in the scorching sun for a long time, solar photons will peel people, and the essence of light is just an electromagnetic wave.

All kinds of radiation harmful to the human body are actually a kind of light, the difference is that their energy is much stronger than sunlight, which leads to these high-energy radiation can easily break the DNA structure, once the human DNA is destroyed, it is like the reinforced concrete and bricks inside the house are broken, and the whole person will endure the painful acute radiation sickness and then die within dozens of minutes. <>

A long time ago, scientists proposed to build a huge light-sail spacecraft for space exploration, ideally this huge light-sail spacecraft would be accelerated to nearly the speed of light, and Hawking's breakthrough star shooting program was also a light-sail spacecraft, but instead of sunlight, it used a strong laser on the ground, which could make the spacecraft accelerate faster.

The speed of light is the fastest, and the human body is passed by light but does not feel it, this is because in this world, we have to travel countless times of light every day, so we will not be hurt by the speed of light because of this.

Because such a speed of light is instantaneous, it can be said that it disappears in a few seconds, so the human body cannot feel it, which is a special speed of the speed of light, which can generally be seen with a microscope.

Although the speed of light is very fast, his energy is very low, and he will not do any harm to people's bodies, or even feel nothing, but staying in the sun for a long time will cause sunburn.

The speed of light is a concept of speed, it does not have momentum in itself, just like an object, it weighs 10 pounds, then the higher its speed, the greater the momentum it generates, but if it is said that it has no mass, its mass is 0, then how fast it moves, it is 0, so it will not have an impact on the human body.

The speed of light is the fastest, the lightest, and there is almost no mass, and it is not so much that we are pierced by the light, but that we accept the light, and the cotton does not feel anything when it falls on the body, and the light is a lighter object than this.

It's just that the rays of the sun have no sense of the human body, and the rays of the earth have no sense of the human body, so the other rays are not necessarily the same.

In many popular science articles, we will be told that the speed of light is the fastest speed in the universe. Under certain conditions, its propagation speed can reach up to 300,000 kilometers per second, which has become an almost indisputable fact in the scientific community. Over time, the speed of light became the norm.

When researchers study the speed of objects, they generally compare it with the speed of light, but there is a doubt in the minds of scientists.

In many speed-related experiments, the speed created by researchers is always infinitely close to the speed of light, but it can never be surpassed. Scientists do this because exceeding the speed of light is essential for humanity. Many years ago, Albert Einstein said that human beings have the possibility of achieving interstellar shuttles in the future, and one of the ways is to build spaceships that exceed the speed of light.

In recent years, there have been frequent natural disasters around the world, which has forced scientists to be vigilant, and it has become particularly important to move to other planets.

In fact, anything close to the speed of light is very dangerous. To take the simplest example, when we are riding a bicycle, if a small bug suddenly enters our eyes, it will make our eyes very uncomfortable. If this bug crashes in at the speed of light, I'm afraid we'll be really blind in our eyes.

Scientists say the speed of light is powerful enough to destroy planets. Even a grain of sand moving at the speed of light is likely to cause a commotion on the planet.

It is possible that the earth will be pierced by a small piece of sand in an instant. The final aftermath is likely to affect Mars, and the strength of the speed of visible light is really not to be underestimated. In this way, why do we not feel anything when light passes through the human body?

First of all, humans cannot be penetrated by light at all, and the nature of the human body itself will block some photons. This is why people with poor physique cannot be exposed to the sun, and once they are accidentally exposed to the sun, they will be exposed to the sun until their skin peels.

Secondly, the light that humans come into contact with is the one that has weakened the atmosphere and magnetic field. The reason why the speed of light retreats back to the planet is also very related to energy. Photons hit us, and they actually feel it.

It's just that this feeling requires the accumulation of quantity. For example, when we stay in the sun for too long, we can clearly feel that there will be a burning sensation.

This is especially evident in the summer, so when summer comes, we must take care of the sun. Don't think that light has no effect on us, it will make our ** dark and sunburn, and some people may suffer from ** cancer. Those who work in the sun must pay attention to their water and salt intake to avoid heat stroke and dehydration.

Of course, the speed of light is not as simple as we think, and the understanding of it still requires in-depth research by scientific researchers.

Because light doesn't pass through our body at all, when light hits our body, it scatters and reflects, and the light is scattered all around, so we don't feel anything.

Because the mass of the photon is almost negligible, and the human body has adapted to it, we have no sense.

The speed of light is so strong that when light passes through the human body, we don't feel it. Because light is a special substance, it does not have a physical form, so we do not feel any light when it passes through our body.

The speed of light is so powerful, why does the human body feel no sense when light passes through it?

First of all, we need to correct the idea that the human body cannot be penetrated by ordinary light! In any case, the human body will block all the photons in the X-ray band, which is about above the terahertz electromagnetic wave! When a photon "hits" a person in this wavelength, all the photon energy will be transferred to the human body!

Peeling after exposure to the sun means that it has been damaged by the energy of photons, and aging cannot be repaired until death and causes peeling! Of course, this is just normal intensity of visible light! As long as the luminous flux is large enough, such as reaching the position of Mercury, the distance from the sun is only 1 3 of the earth, then the light radiation will increase by about 70 times, it is obvious that the cross-sectional area of the human body is about square meters when facing the sun, then it will have to withstand 36kw of power, can this person eat it!

So for a photon without a resting mass, it's not the speed that kills people, it's the energy! The higher the frequency, the higher the energy, ultraviolet and extreme ultraviolet rays are harmful to the human body, and the higher X-rays and rays are extremely energetic, penetrating is also very strong, and the human body is very harmful!

The rays we need to protect against can only be shielded by thick concrete, and it is conceivable that if two neutron stars merge and the ray stream is towards the Earth's defense line and the distance is tens of light-years, life on Earth may be in danger! After all, without warning, you are directly exposed to the rays!

There is a theory that the five mass extinctions of life in geological history, at least one is caused by a supernova explosion near the solar system or a ray burst caused by the merger of neutron stars, of course, it may be difficult to verify from the current point of view, but high-energy rays bombarding nitrogen, oxygen and other elements will produce "beryllium-7" and "beryllium-10", but unfortunately, even the half-life of "beryllium-10" is 1.5 million years, and it seems difficult to use it as a reason for research for the time span of hundreds of millions of years in geological history!

Of course, we don't have to be so entangled, but all we know is that photons hit people will have feelings, and this feeling needs to accumulate enough photon energy, the most intuitive is our vision, and the feeling is gradually warm, until it is hot, or even hot, which is the inevitable result of the electron transition in the outer shell of the atomic nucleus, and the human body feels very simple and warm! Or sweating, dehydrated in this heat stroke. It's the feeling that photons at the speed of light give us!

The human body will not be passed by light, after the light is refracted to the human body, the energy carried by the transmitted photons will be given to the human body, which is why the human body will peel under strong irradiation, which is caused by this energy.

This is because scientists have experimented and found that although the speed of light is very strong, it cannot penetrate the human body, but will inject energy into the human body when passing through the human body, so people will feel very warm when they are exposed to light.

The power of the speed of light is indeed very powerful, but light does not cause harm to the human body, on the contrary, organisms on the earth have to photosynthesize through light, and light does not have a certain impact like other substances.

Although the power of the speed of light is strong, the light itself does not have any mass, so it will not feel anything when it penetrates the human body, after all, it is not the impact force of an object.

The speed of photons is the largest, why can't it penetrate the human body? This is a question that no one can say about any mechanics, because until now it is not known how light is produced, and only the general outline can give a definite result.

This is because scientists have learned that although light carries a lot of energy, it is not enough to pass through the human body, and it will release energy when it passes through the human body.

People have studied macroscopic events and found that the rules of the macrocosm are relatively simple, but when people study the microcosm now, they find that there are too many things in the microcosm that humans cannot understand, and Newton's three laws and gravitation are only applicable to the macrocosmThe microcosm is still governed by the framework of quantum mechanics and Yang Mills' theory proposed by Yang Chenning, but the progress does not seem to be particularly large.

Photons are similar to molecules and the like, we don't have any senses to sense their existence, that kind of thing is almost invisible to humans with a magnifying glass, and it is difficult to see with a microscope, and something like this is almost insignificant when it hits a human being, and we can't even feel its existence.

Because he is so small, the human eye can't see him at all, and even if he hits a human at a high speed, he won't feel anything.

Because the mass of the photon is so tiny, like a speck of dust in the air, relative to our body, it is the Fa that senses his existence.

This is because photons do not pass through the human body, and after touching the surface of the human body, they release energy and transfer it to the human body.

Because light is an energy carrier, it carries a lot of heat, and when it hits the living being, it will only allow the living thing to absorb the energy. Because it is not an entity, it cannot directly damage mobs.

Because the light is the same, it makes people's vision feel wrong, and it takes time for people's pupils to adjust and adapt, so this situation occurs.

Visible light is not penetrating. Therefore, it is harmless to the human body, and there is no feeling on the human body, and ultraviolet rays have strong penetration. It also belongs to light. It is extremely harmful to the human body.

It should be analyzed from the quality, although the light goes fast, but the process is dispersed, so when people see the light, it only has the role of light and heating, but if the light is not dispersed in the process and is clustered together, it will cause great harm to the human body, which is also the principle of laser.

The speed of light is fast, it is not fixed in a certain position, it changes around the time of day every day, and people will move, so it is not too obvious to shine on people.

The quality of the light is small and you don't feel it, but if you change it to a high-quality strong light, you will feel it, just like a very small stone falling on you and a big stone falling on you feels different.

There are many colors, and each color has a different wavelength of light and a different amount of energy.

Because it's too fast, the world's martial arts are only fast and unbreakable.

The feeling of energy or the feeling of weight.

Probably because of the dispersion of light, separated.

Is the "feeling" in "no feeling" in the landlord's "no feeling" a feeling in terms of energy or a feeling in terms of weight?

Energy: There are many colors of light, and the wavelength of light in each color is different, and the amount of energy is also different. If a certain number of lights of the same color are gathered together (such as lasers), then the landlord will have a great feeling.

The reason why there is no 'feeling' is that the common light energy with "feeling" is relatively large and is absorbed by the medium of transmission, such as ultraviolet rays in sunlight. The sun must have a feeling on the body, especially in summer, and the "feeling" thief is obvious.

Weight: Actually, there is mass (weight) in light. Although the speed is fast, but this mass is negligible, for the human body, this "behemoth", there is really no feeling, even if there is a feeling, but for the human body to contact other objects with mass, the "feeling" brought by light can also be called an illusion or a habit of living beings and ignored by living beings.