Is there anything that moves faster than the speed of light? Is faster than light the speed of light

Yes, there are faster-than-light ones.

I can't think of it all at once, so I can say a counterexample.

If the distance or mass of two stars changes in the universe, then the gravitational force between them and between them and other planets will change immediately, and the gravitational force in the universe will change in an instant.

Then this propagation is faster-than-light. That's what inspired Hawking and what he discovered.

The general theory of relativity, which is also recognized by the current physics community, considers the speed of light to be the fastest speed. At present, there are no counter-examples, either theoretically or experimentally.

But what will happen in a few years, no one knows.

It should be noted that general relativity holds that matter and information cannot exceed the speed of light. Objects that do not contain information can travel faster than the speed of light. For example, if a laser is used to quickly sweep the clouds in the sky, the bright spots on the clouds can move faster than the speed of light, which does not violate the general theory of relativity.

This has some applications in astronomy.

Theoretically, it is like Archimedes' prying up the earth.

Start by identifying a point in the universe.

A stick long enough to be fixed to the point at one end.

Circle the stick to make it spin.

If the heel of the stick turns in a circle, it is assumed that the absolute smoothness on the dot is 0, and the friction is 0, then the time for the stick to make a circle is very small.

However, the distance traveled by the end of the stick is very large, as long as the stick is long enough.

The distance traveled at the end of the stick is completely greater than the speed of light except for one revolution.

However, Archimedes' idea of priing up the earth is difficult to realize.

There is a conjecture that gravity is propagated by gravitons.

We can prove: know e=mc 2 handfuls?

When the object moves, its energy increases, and so does its mass, let the original mass be m1, and after the increase, it is m2, the original energy e1, and the amount of increase e2

e=e1+e2=m2*c^2

e1=m1*c^2

e2=1/2*m2*v^2

When v=c, m2 can only be infinite!

At present, the scientific and technological community has not found anything that can exceed the speed of light, either theoretically or experimentally, so it is now thought that it is not possible to exceed the speed of light!

Albert Einstein used the general theory of relativity to prove that the speed of light is the absolute speed in the universe (that is, the fastest speed), and even if science is developed, the speed can only be closer to the speed of light, and it cannot exceed the speed of light.

Talk nonsense. According to the theory of relativity, light is the fastest speed in the whole universe. When an object reaches the speed of light, it has almost traveled through time and space. So there can't be anything faster than the speed of light.

Yes, high-speed moving electronics.

The attraction of a black hole cannot escape even light.

The speed of light is faster than the speed of light.

When the speed of an object approaches the speed of light relative to another object, the time of one object slows down relative to another, and the time change conforms to the Lorentz transform.

In the 70s of the 20th century, it was confirmed that the difference in the position of the solar eclipse at the same time observed by satellites and ground observatories was confirmed) The speed of light is the maximum speed known at present, and the kinetic energy of an object is infinite when it reaches the speed of light, so it is impossible to reach the speed of light according to the current human cognition, so the problem of the speed of light and the speed of light is not within the scope of physics discussion.

The relationship between faster-than-light setting and the law of cause and effect.

1. The superluminal assumption of special relativity.

According to the special theory of relativity, the usual matter with a positive real number at rest must move at a speed less than the speed of light c, and such matter is called sub-light matter (or sub-light particles), and their whole body is called a sub-light world. Special relativity also allows for the existence of faster-than-light worlds, in which all matter is moving faster than the speed of light c, and such matter (or particles) are called tachyons whose static mass is an imaginary number (its square is less than zero).

2. The experimental proof is inconsistent with the theory.

Physicists have designed many experiments, but no trace of tachyon has been found. If tachyons can occur in a sub-light world, there will be a violation of the law of cause and effect: considering that the first physical event occurs at the first point in a given inertial frame, and a faster-than-light signal transmits this information to the second point and triggers the second event, we say that the two events are causally related and satisfy the law of causality

Cause (the first event) occurs before the Result (the second event). But according to the Lorentz transformation, there are always other inertial frames in which the "effect" (the second event) precedes the "cause" (the first event).

3. Conclusion. Thus, in the special theory of relativity, the law of cause and effect excludes the existence of faster-than-light signals.

When a person moves faster than the speed of light, he will feel cold due to the extreme force of the wind, or he will produce flames due to the friction with the air, and because of the inertia of the person, he will not be able to stop at all, which is very dangerous, and it will lead to death.

If this is the case, then his time will slow down, Einstein's theory of relativity said this, you can understand it this way, our common formula u=s t The speed is larger, the time becomes smaller, so this phenomenon is not difficult to understand.

Do you understand why, if you don't understand, you can ask me again.

will die because he can't bear the current.

Feel free to shuttle, tens of thousands of years ago in the past, unknown future...Refreshing.