Faster than light What happens if a person walks on a train that moves at the speed of light

Not only is it impossible to exceed the speed of light, but neither can an object with mass reach the speed of light. Suppose the train is moving very close to the speed of light, the train plus B would have traveled faster than the speed of light, but due to the high speed of the train, the time on the train has dilated, you may see that B took 10 years to walk from the carriage to the toilet, and it took 10 years to walk 50 meters, so that B's speed would not exceed the speed of light. As the train gets closer to the speed of light, the slower time B becomes, and the observer may never see B walking to the toilet in his lifetime.

But B doesn't feel that there is anything unusual about his time, and he thinks that time is no different when the train is stationary.

The speed of light is constant in any frame of reference. What has changed is time. Because time stands still when moving at the speed of light, the velocity of passenger b = speed of light + v is not valid.

If a train is traveling at the speed of light, the passengers on it cannot be observed by an observer on the ground, because the maximum speed of information propagation is also the speed of light, and you cannot see it until the train is coming, and the train you see after passing will be stationary, because time will stand still at the speed of light. So it takes an infinite amount of time for B to go to the toilet, but for B it is possible to go to the toilet.

Read a few more books on the theory of relativity, in which time and space are relative, which is very different from our intuitive impression and what we have learned before, so it is difficult to understand. Mine isn't good either, I hope it inspires.

Since the speed at which Passenger B walks is very different from the speed of light, the speed of light +V can still be regarded as the speed of light, while Passenger B still walks and goes to the toilet as he pleases.

If you shoot it horizontally, it's a black belt... Because your shutter hasn't closed yet, all the light is on you.

That is, you overlap all the **s from far to near in the normal shooting, and it shouldn't become a gray box?

It's impossible to see the car, because the car has decomposed, and at the speed of light, normal matter would decompose.

In the process of human exploration of the universe, the distance between the stars is so far that all our scientists now generally believe that there will be no way for human beings to get out of the solar system in hundreds of years. After all, after leaving the solar system, the distance between all celestial bodies is measured in light years, because it means that light has to travel for a year to reach another celestial body, and in our real life, it is still an unattainable dream to move at a very fast speed to reach the speed of light. <>

Exceeding the speed of light has become an impossible topic. This is mainly because the speed of light is defined in Einstein's theory of relativity, which he believed is the fastest speed in the universe and that no object can exceed the speed of light. Because when the speed of an object approaches the speed of light, its mass is close to infinity.

And when his mass is infinite, his own gravitational pull is already very large, forming a kind of black hole that can move. <>

But if we assume that an object is traveling at the speed of light, can we run above it faster than the speed of light? In my opinion, if such a scenario is achievable, it means that under the assumption of this scenario, Einstein's theory of relativity is no longer applicable, which means that there is no theory that the fastest speed in the universe is the speed of light. In this case, we can travel faster than the speed of light.

After all, once the previous theory is broken, it means that when we travel faster than the speed of light, we are not a moving black hole in itself. <>

And the mass itself is also in a controllable state, after all, the spacecraft can travel at the speed of light, why do we make a mistake when we travel at a speed beyond the extraordinary? But there is a paradox that needs to be explained here, that is, we can only say that the speed of us and the spaceship together is faster than the speed of light, but our own speed is still the speed of running, and it does not exceed the speed of light. So in reality, our running doesn't help us exceed the speed of light, it's just that if the speed of the ship and our speed are added together, we get faster than the speed of light.

No. Because a human being runs on a train at the speed of light, and the reference is a train, his speed does not exceed the speed of light.

It is impossible to exceed the speed of light, and we all know that even if a person runs on a train at the speed of light, he will run at the same speed of light at most, which is relative to the ground, and if he is relative to the train, his speed is very slow.

No, the speed of light is the fastest, no matter what tool a person rides, his speed is still his own speed.

If a person runs on a train with the speed of light, I personally think that his speed cannot exceed the speed of light, because the speed of light is the fastest.

Theoretically, your assumption can be valid, as long as the person above can move forward at a normal speed, then he can break this tipping point and go beyond the loose, but in reality this is an unrealistic assumption.

Because when the train is infinitely close to the speed of light, the people on it will have to spend a lot of energy and strength to resist this reverse friction and relationship due to the action of inertia and the friction of the soles of the feet, so it is almost impossible to move smoothly on the train.

Therefore, in real life, it is very difficult to do this kind of experiment, and it cannot be achieved with the current level of science and technology, even if it can be achieved. It is also necessary to simulate a normal processing environment during a completely closed life, so that it is possible for people to move frequently at such high speeds.

So this is a hypothesis that can work theoretically, but in real life, at least so far, it is still very difficult, there is no way to try to have scientific limitations, maybe one day human beings can reach a high level of science and technology, to verify the feasibility of your hypothesis in real life.

In that case, time will change, that is, it does not belong to the category of classical education, and cannot be explained according to conventional knowledge, but must be understood by the theory of relativity.

According to the principle of relativity, nothing with mass can exceed the speed of light.

According to scientific theory, it can only be close to the speed of light, and it is impossible to exceed it.

If you're a post-10s, maybe it's possible.

Hello, jump up and fall in place, jump forward and take a step forward, because this person is on the train at the speed of light, he is the speed of light, so he will not slow down because he leaves the car, for example, this person is not on the car, but jumps from a height to the running light speed train, what is the result, because at this time he does not have the same speed as the train, he will be affected by all aspects of the force to fall and roll in the opposite direction of the operation, until it is consistent with the speed of the train, That's when he can walk around the train and do any movement, jump without being thrown out, you think about it, I don't know if it will help you.

To add, I've all been on the train, so what's the difference between you walking forward and backward on the train, no, but what happens to you when the train brakes, your body leans forward or backward, why, it's because your speed doesn't slow down right away, if it's an emergency brake, you run briskly in the direction of running, or grab the handrail on the train to maintain the same speed as the train, pondering and pondering hope to be able to say clearly, don't understand and don't blame you You can ask me again.

What would happen if you could move at the speed of light?

The theory of relativity does not discuss light frames of reference, I can only say that if a person is moving close to the speed of light, nothing will happen to him personally. It is certain that traveling through time and space is, and there will be no theoretical basis for traveling through time and space in special relativity, which can only appear in general relativity, even if the curvature of space-time in general relativity has nothing to do with the speed of motion of objects.

According to the special theory of relativity, time slows down, or stands still. It is possible to travel through time and space.

If a person travels at the speed of light, two things happen. 1: He was broken down because he couldn't handle the pressure. 2: He travels through time and space.

On the earth, due to the action of the earth's gravity, the speed of all objects on the earth is limited, in the universe, so the universe is in a state of vacuum, so the speed of many objects is not limited, so we often wonder, what will happen if we move on a train that is infinitely close to the speed of light? In fact, after the research of scientists, it has been found that all objects with massBasically, we can't reach the speed of light, and if we can do it, it may have the consequence of decomposition, so if we are on a train infinitely close to the speed of light, what happens is that we will decompose.

I think the train, and the people on it, are broken down into tiny molecules.

If you move on a train infinitely close to the speed of light, it will be disintegrated in an instant. Because it is impossible for any object with mass to reach the speed of light.

will travel through time and space. When the speed exceeds the speed of light, you are out of touch with this space and you enter the four-dimensional space.

If there is no quality in light, why can a train have no quality? It's okay to blow stupidly!

If the speed of light is reached, it will:

1. When a person reaches the speed of light, time may stop. According to the theory of relativity, the faster the speed, the slower the time, so when the speed of light is the maximum speed known in nature, when a person reaches the speed of light, that is, when the speed approaches infinity, it will cause time to approach zero infinitely, which means that time stops. But the stop here is only relative, not all objects stop, but your time is relatively slower.

2. People can live forever at the speed of light. It is also said above that when people reach the speed of light, it may cause time to stop, so when time stops, is it equivalent to eternal life at this time, but in fact, it is only relative that your aging becomes slow, and the slow is close to nothing, so it may cause your minute to be someone else's year, or even longer, but one day it will still age, because time does not really stop.

When you reach the speed of light, the particles around you will gain infinity mass, that is, the inertia of these particles will be infinite, and the gas molecules around you will trap you and immobilize. Take a step back and say you can move, I'm going to say you have one person standing 10 meters in front of you and one person in front of you, and you stand in place, whether you look in front or behind, these two people won't move. If you run a distance forward, you won't see anything like a fast-forward image, because the photons within 10 meters contain very little change in the image information, and you won't notice it at all.

At this point, when you look back, it will be pitch black, and the photons can't catch up with you, what can you see?

At present, there is no matter known to mankind that can exceed the speed of light, but in the future, there may be, if the speed reaches the speed of light, it may exceed time and space, and it is no longer a fantasy to travel through it, as long as there is oxygen, human beings can travel through the universe at will, go back to the past, but may still not escape the black hole. Theoretically, it is impossible for a person to reach the speed of light – perhaps one day it would be wrong to think so, but it is still believed that no matter what propeller a person relies on, he cannot reach the speed of light, let alone faster than the speed of light. Because, it is impossible for an object with mass to move at the speed of light.

Here's how it works: First, let's take a look at the mass-energy equivalence theory. The theory of mass-energy equivalence is the most important corollary of Einstein's special theory of relativity, that is, the famous equation e=mc 2, where e energy, m is mass, and c is the speed of light; In other words, all matter has latent energy with mass multiplied by the square of the speed of light.

The entire energy of a resting object is contained in the mass at rest. Once in motion, kinetic energy is generated. Since mass and energy are equivalent, the energy present in motion should be added to the mass, that is, the mass of the moving object increases.

When the speed of the object is much lower than the speed of light, the increase in mass is negligible, as when the speed reaches the speed of light, the mass only increases, but as the speed approaches the speed of light, the increased mass is significant. For example, when the speed reaches the speed of light, its mass more than doubles. At this point, more energy is required for the object to continue accelerating.

When the velocity approaches the speed of light, the mass rises in a straight line as the velocity increases, and when the velocity is infinitely close to the speed of light, the mass tends to infinity, requiring an infinite amount of energy. Therefore, it is impossible for any object to move at the speed of light, and only particles with zero mass can move at the speed of light, like photons.

So it should theoretically be impossible for the person you are asking to chase the light wave at the speed of light, because man has mass!

Breaking records is something humans love to do, but have you ever wondered what would happen if we broke the highest record in history? Today let's dig deeper and see what.

His speed is still the speed of light. Approaching the speed of light, the velocity should not be superimposed by addition, but should be added with v=(v1+v2) (1+v1*v2 c 2).

In fact, this formula is the correct velocity superposition formula. However, in low-speed conditions, that is, in daily life, the speed is much smaller than the speed of light, so that the denominator is very close to 1, and the situation of v=v1+v2 will occur. The formula we are accustomed to is just an approximation of the correct formula.

The detailed derivation process of these things will be available in the general tutorial. The invariance of the speed of light is the basic assumption of special relativity. The reason for this assumption is that the invariance of the speed of light is a corollary of Maxwell's equations.

I also hope that friends who raise this issue (not lz personally) don't be too ambitious to become a civil science, and read more reliable books. The theory of relativity is reliable, and it is self-erroneous to try to overturn the theory of relativity by memorizing a few proper nouns at the level of physics and mathematics in primary and secondary schools.

I think Gamow's Adventures in the Physical World is explained vividly and clearly, and you can go and see it. Personally, I don't like a brief history of time. I don't know if it's a problem with the translation or the author, but I feel like I've just piled up a bunch of terms and haven't explained anything.