To illustrate, the contradiction that arises when the speed of light is related to the observer

This kind of contradiction has a more elegant name, fallacious!

The twin paradox is one of the most typical, talking about a pair of twins whose younger brother travels through the space while riding in a spaceship. From the elder brother's point of view, the younger brother's spaceship is moving away at speed. After twenty years, the younger brother returned to Earth, and the elder brother was ten years older than the younger brother.

But from the younger brother's point of view, the earth where the elder brother is located is receding at a speed, and it should be that the elder brother is ten years younger than the younger brother.

This is a paradoxical question, which is younger than the other?

Later, after Einstein's own in-depth research, he came to the conclusion that his younger brother was ten years older than his elder brother, and as for why, I believe Einstein himself could not tell.

There is also a quite classic one, which is whether a boat traveling at sea at nearly the speed of light sinks or floats.

From the point of view of the boat, the volume of the sea becomes smaller, the mass becomes larger, the density of the sea becomes larger, and the boat should float up, but from the perspective of the sea, the volume of the boat becomes smaller, the mass becomes larger, the density also increases, and the boat should sink.

This is another fallacy.

Later, after research and observation by scientists, it was found that the boat should have sunk when it was traveling close to the speed of light.

For such a contradiction, many people can't understand it, because the movement is relative to each other, and it is supposed that the speed of who is the same for whom, why is there such a conclusion??

According to my incorrect understanding, it is possible to prove the existence of "ether" from one side.

Personal opinion, immature, no laughter.

The speed of light is not measured by human observation, but by instruments, and you should take a look at "How the Speed of Light is Measured" in Know

The corresponding time prolongation of matter when it moves at high speed should not be a human characteristic, but a characteristic of all matter, which makes the observation have the same measurement, and in fact the length of time that matter exists is inextricably linked to speed.

Someone "is wrong, it should be that the speed of light is constant, and the wavelength is inversely proportional to frequency." c = f (c is the speed of light, is the wavelength vertical town, f is the frequency. ）

No matter what kind of inertial frame of reference is observed, the coarse propagation velocity of light in a vacuum is a constant, c=299792458m s, which is the principle of invariance of the speed of light. The speed of light is the absolute velocity, not the relative velocity, and the speed of light does not change due to the motion of the light source.

Have you studied Einstein's theory of relativity? Einstein When matter reaches the speed of light, time stands still.

Light moves through the ether, and objects contract as they move through the ether, and the clock slows down This contraction and the slowdown of the clock allow people to measure the same speed of light, regardless of how they move relative to the ether And if one cannot detect whether he is moving through space or not, then the idea of the ether is superfluous On the contrary, the assumption that a scientific law appears to all observers of free motion is the same as the starting point In particular, the same speed of light should be measured no matter how fast they move The speed of light has nothing to do with their motion. And it is the same in all directions

The same is uniform, and the principle of invariance of the speed of light does not require that the frame of reference must be moving at a uniform speed!!

The speed of light in a vacuum is the same for any observer. The principle of invariance of the speed of light, in the special theory of relativity, refers to the fact that the propagation speed of light in a vacuum is a constant regardless of the inertial frame (inertial frame of reference) in which it is observed, and does not change with the relative motion of the light source and the frame of reference in which the observer is located. This value is 299,792,458 meter seconds.

In fact, it is impossible to observe whether the speed of light is uniform or not. If you want to say that you can only discuss theoretically, come to Thailand to discuss!

The speed of light or c...

But the frequency is messed up.

If the speed of the observer's motion is the speed of light, then the speed of light measured by the observer is still constant.

The principle of invariance of the speed of light is the core of the special theory of relativity, which states that the propagation speed of light in a vacuum is a constant regardless of the inertial frame of reference in which it is observed, c=299792458m. The speed of light is absolute speed, not relative speed.

The theory of relativity holds that the speed of light cannot be exceeded, and even if the speed of light is superimposed on the speed of light, the speed is still the speed of light. Hope!

This is the principle that the speed of light does not change. The speed of light propagation in a vacuum is a constant regardless of the type of inertial frame in which it is observed (inertial frame of reference) and does not change with the relative motion of the light source and the frame of reference in which the observer is located. This value is 299,792,458 meter seconds.

1.The law by which the states of a physical system change has nothing to do with which of the two coordinate systems to which the coordinate system is referred to to describe the changes in these states in a uniform velocity.

2.Any ray of light moves at a definite velocity v in a 'stationary' coordinate system, regardless of whether the ray is emitted by a stationary or moving object. ”

For speeds greater than the speed of light, our discussion becomes unquestionable; In a later discussion, we will find that the speed of light plays a role in our physical theory of infinite speed. ”

Thus, when =v, w becomes infinite. As with our previous results, faster-than-light speeds are not possible. ”

Because speed can slow down time, time slowing here means that the object in motion has slowed down in time, and when the speed of the object reaches the speed of light, its time is stationary. In summary, when the speed of the observer reaches a certain level, the speed of light observed by it will be constant due to the speed of time. By formula, some variables are eliminated from each other in the process of calculation.

a. According to the principle of invariance of the speed of light, in all inertial frames, the propagation rate of light in a vacuum has the same value, so a is correct

b. The basic conclusion of the special theory of relativity shows that at the same time, relativity, length contraction, and time dilation, these physical quantities of time and space all change with the change of velocity, so b is correct

c. According to the clock slow effect, when the spacecraft passes near the earth at high speed, the spacecraft people observe that the spacecraft is not moving, so the clock on the spacecraft does not slow down, and the normal time is wrong

d. According to the special theory of relativity, it is also relative, so d is wrong, so ab is chosen

First, relative distortion can make objects look crumpled in front of you. Then, Doppler drift will cause the object in front of you to drift towards the blue band, and the object behind you to drift towards the red band. Similarly, objects in front of you will appear to be moving faster than they actually are, and objects behind you will slow down.

Objects on both sides appear to be bent, and surfaces that are not visible under normal conditions may come into your field of vision.

Of course, since motion is relative, the effect is the same when you are still and the world moves towards you. The first scenario is driving on a highway without any relativistic effects. Make a note of the location and orientation of the markers in the desert.

In the second scenario, we added relative distortion. When we accelerate, due to the action of angular compression,At first gives us the illusion of backward movement. As we passed the sign, it looked bent.

This can be seen as a terrell turn, or angular distortion that keeps it in our field of vision as we drive past a road sign.

We could even see the back wall of the house. Each object has severe deformationsThe sky, in particular, slowly shrinks towards the vanishing point of perspective. Now let's add the Doppler shift.

Notice the blue shift of the red desert ahead, creating a rainbow effect before the green and red. The blue sky shifts so much that it loses its color. The opposite is true at the edges of the picture – the sky is stained with a red halo, and the red desert red shifts to the infrared band, thus losing the color of the road.

Experiments flying over cubes at high speed can be a good demonstration of the Terrell effect. Notice that the orientation of the cube has changed. Also, compare the location it looks like to the location shown on the car's electronic map.

Remember, what we see is where it used to be, not where it is now.

As the speed approaches the speed of light, you'll notice that you'll see things you wouldn't normally see.

When an object moves at nearly the speed of light, onlookers will see that the length and mass of the object change dramatically, and even time begins to change.

It should feel like time around you is getting very slow, here are some of Einstein's corollaries.

The changes we see in objects are instantaneous, and we can even see the secrets of physics.

There won't be any strange changes, it's just that I can't see things clearly.

This estimate is that you can get to a place very quickly, basically in minutes.

The length and mass of objects are changing dramatically, and even time is beginning to change.

This thing is a different kind of situation, that's why it looks.

This thing may make you have less things around you.