When will faster than light aircraft appear?

If Einstein's theory of relativity had been correct, it would never have been created.

Because according to his theory, space-time in all frames of reference is determined by light

And at present, the theory of relativity will not be subverted for at least 200 years, so we must wait another two centuries to see if anyone can theoretically prove that a faster-than-light plane is feasible and prove it, and it will not be far from being realized

There are two possibilities: if the theory of relativity is correct, then it will never exist, and the so-called faster-than-light flight can only be achieved by relying on certain special properties of space; If the theory of relativity is wrong, it will probably be possible in a few hundred years, depending on the rate of human development!

When China gets rid of the United States, and then it gets rid of Japan.

Never, the speed of light is the ultimate speed in the universe. Special Theory of Relativity

Such questions are meaningless.

You can also ask: when will a perpetual motion machine be manufactured? When will people live forever? Wait a minute.

If so, do you dare to sit? That's gone!

On the other hand, if there is a distortion of time, isn't it faster-than-light?

This is obviously a non-conforming question, who will go to the plane faster than the speed of light.

When the Chinese team wins the World Cup.

Hehe, this question ......God knows.

According to current theories, if you want to make speed faster than the speed of light in the classical sense, it will never be possible. But artificial wormholes or warp speed drives and similar methods can bypass this limitation and achieve the goal of exceeding the speed of light. But when will it be realized?

It's too hard to say. It depends on the human tech tree. At the moment, I can only say that 20 years is basically impossible, and 50 years is extremely unlikely.

It can be said that there is a play in 100 years, but even if. For example, "Curvature Engine." , by distorting the space before and after, moving forward until the space is uneven, it is believed that the speed can completely exceed the speed of light.

Why is it said to "bypass" the theory of relativity.

Because you're at rest and moving in your space, you're not moving faster than the speed of light, which is relativistic, but you're moving faster than the speed of light. But the former repeatedly violates the three energy conditions everywhere, while the latter also violates the weak, strong, or principal energy conditions correspondingly in the throat or elsewhere, considering the quantum field theory, which may allow the existence of matter that violates the weak energy condition, and considering dark energy, which may allow the violation of the strong energy condition, but the violation of the main energy condition means that the four momentum densities of the material field are empty, i.e., the energy flow is locally superluminal.

and therefore cannot be rounded. <>

From this point of view, there are only insects that do not violate the main energy conditions. All the starlight we see comes from far away space. Maybe it took decades for it to come to Earth and be seen by us.

Because it takes a long time for the speed of light to travel in the universe. (You should understand.) Next comes the most important thing.

If you reach the speed of light and catch up with the light, you will be able to see everything that happened in the past. For example, Qin Shi Huang.

The light of enthronement is still spreading through the universe. As long as you catch up with that light, you can see the scene of Qin Shi Huang's accession to the throne.

For many scientists, it is believed that humanity could one day achieve time travel. For example, in Hawking.

Before his death, Hawking believed that in 200 years, humans could travel in time, not only to the future, but also to the past, and to travel freely in time. But, Einstein.

It is simply not feasible to think that humans can achieve "time travel" at the speed of light, because humans simply cannot achieve the speed of light, let alone one day it will be faster than the speed of light. <>

Personally, I think that traveling through time and space and going back in time is really achievable.

For example, what you did 5 minutes ago is not gone, but is propagated by light, and if you can speed faster than light, then you can catch up with the image 5 minutes ago, isn't that going back in time?

Photons have no mass, 300,000 kilometers per second, people have mass, and it is impossible to find a substance without mass, and it is impossible to turn a substance with mass into a massless, and there is no possibility of exceeding the speed of light. What faster-than-light is just a hypothesis. If there is a time machine in the future, that is, people can travel through the past and the present casually and live forever.

What kind of body is a human being, and can it still exist? The universe is gone, is it possible for you to exist as a human being? There will never be a time machine, human beings only have the ability to prolong life, not immortality.

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.

The time machine is a machine capable of time travel in Wells's 1895 book The Time Machine. On the surface, this may seem nonsense, but since the theory of relativity was proposed, the time machine has been theoretically based.

According to Einstein's theory of relativity, the mass of an object will increase with speed, and when the speed of an object approaches the speed of light, its mass will tend to infinity, so it is impossible for an object with mass to reach the speed of light. Only photons with zero rest mass are always moving at the speed of light. The speed of light is superimposed on any speed, and the result is still the speed of light.

Let's start by understanding what is the speed of light?

First of all, the speed of light refers to the propagation speed of photons with zero rest mass in a vacuum, this speed is 299792458m s, and we usually take a round number of 300,000 kilometers and seconds for the convenience of expression in ordinary times.

The speed of light is the data that scientists have measured through measurements, and the speed of light propagation is not constant, which is related to the medium of propagation. For example, light travels at a speed of only 225,000 kilometers per second in water and 230,000 kilometers in ice. Therefore, a change in the medium causes a change in the speed of light.

When we usually say 300,000 kilometers per second, we mean that when the propagation medium is a vacuum, the propagation speed of light in a vacuum is constant, and the measured speed is the speed of light when observing any light in a vacuum, in any stationary frame of reference. The speed of light is not affected by the light source, whether it is emitted by a stationary or moving object, its speed is the speed of light, and the initial velocity of the light source object is not superimposed. For example, if you emit a ray of light from a spaceship with a speed of light, the light will still travel at the normal speed of light, or at a speed of 300,000 kilometers per second, and it will not superimpose the speed of the spacecraft to the speed of light.

This is the constant speed of light.

Can the speed of light be surpassed?

As far as is known, the speed of light in a vacuum is the fastest speed at which matter moves in the universe. And only photons with zero rest mass can move at the speed of light from the beginning, and no other matter with mass can reach the speed of light, let alone exceed it, but theoretically it can get infinitely close to the speed of light. Scientists explain that the faster any object with mass moves infinitely closer to the speed of light, its moving mass will become infinitely larger, so that an infinite amount of energy is needed to propel matter into motion.

Infinite energy does not exist, which means that it is impossible for an object with mass to reach the speed of light.

Therefore, the speed of light cannot be surpassed. This is the magic of the universe, and we are inexplicably limited to the speed of light. If humanity wants to explore the vast universe and reach distant galaxies, it must find other ways.

Such as wormholes, curvature engines, space folding, etc. But these may not be realized in the short term, in the foreseeable future, so let's hand over the vast universe to the future people, hoping that the future human beings can take root in every corner of the universe and ......continue the fire of human beings forever