What would the world be like if the speeds of light and sound were reversed?

The speed of light and sound are reversed, and the speed of light will become very slow, until thenThe world will be very darkBecause the light emitted by the sun or other stars will not be able to escape its own gravity, forming a black hole and a hole, and the whole earth will be shrouded in darkness all day long. At the same time, since electromagnetic waves are also a type of light on EarthCommunication can become very slowImagine what it feels like to send a message to a distant loved one for dozens of minutes.

We're inIt is difficult to know the road conditions in real time when driving a car, because you see the road ahead that may have been the way it was a few minutes ago. At the same time, we also experience the magical Doppler effect, where the front of the car is blue and blue, and the ground behind the car is red and red in the rearview mirror.

There is also a daily phenomenon, when thunder we generally first see an electric light in the sky, and then dozens of seconds before hearing a bang, when the speed of light and sound is exchanged, the situation will be reversed, we will first hear the thunder unexpectedly, and then see the electric light, and the thunder is not a continuous burst, but a very rapid sound.

Because of the interchange between the speed of light and the speed of sound, you may only see the movement of his mouth when you have already heard the sound. At the same time, the syllables that we may utter when singing are all intermittent and cannot be pronounced in long tones, of courseThe echo generated in the empty hall will also disappear, and vice versa。Put a mirror at a sufficient distance, shine it with light, and then turn off the light source, then you will find that the mirror is shining light on you.

Suppose the speed of light and sound are reversed. Then the time it takes for sunlight to reach the earth's surface will be very long. In the process, the vast majority of life on Earth will die.

Because you don't get enough sunlight. Oxygen cannot be renewed. As oxygen levels on the Earth's surface become scarce, humanity may perish as a result.

I don't think this problem exists, the speed of light is much faster than the speed of sound, and it is impossible to interchange.

The development of the world will be much slower, because there will be a lot of inconvenient things happening in these two exchanges, and everything will be slowed down.

If the speed of light were as slow as sound, it would take thousands of years for sunlight to travel from the universe to Earth, and the world would be dark.

The reason why we can see things is because of the reflection of light, and if the speed of light travels to the speed of light, we will see things very slowly.

I think some of our things are going to slow down a lot, like the sun's rays, and then it causes us to panic about the world.

You will feel that the whole world has suddenly slowed down, and what was once a quiet environment will suddenly become noisy.

If it is really exchanged, the earth will always be in a state of night, and without the arrival of day, the world will be in chaos.

In this way, there will be no more light on the earth.

Thunder is the hearing of a sound and the sight of lightning.

The starting pistol used for the game was turned off when the gun rang out, and the white smoke was seen.

So that we can do time travel in supersonic Concorde, such as going back in time.

The light emitted by the sun will never reach the earth, because the speed of light is less than the second cosmic speed of the sun, and it will be difficult for us to hear the change in the tone of the whistle when we have to wait for nearly an hour to connect to the train and enter the station.

Skilled soldiers can easily dodge bullets.

The speed of light is only the speed of sound.

According to the title, it is obviously a lot slower.

So you have to think about where you can take advantage of the fast speed of light.

For example, the light emitted by the sun does not know how many years it will take to reach the earth.

There are also dark clouds, and after the rain, it takes a while for the ground to light up

The whole world was deafened.

You can take a supersonic plane ride and feel like you have stepped back in time.

1.When the teacher was lecturing, the teacher said that the students in the back row could only hear it after more than 20 seconds, so that the students' questions were not uniform.

2.When the car brakes sharply and honks the horn, it is possible that the person will be hit before he can hear the horn.

3.During the 100-meter race, the athlete who is close to the gun first hears the gun and runs out after the starting gun is fired, and the athlete who is far away runs out later!

4.It is easier for people to hear their own echoes than they are now.

5.Your mom is calling you in the kitchen, and you hear it two minutes later.

6.If you watch TV from a distance, the sound will be seriously out of sync with the image, and the TV will need to be transformed.

7.Lightning last night, thunder this morning.

8.The pace of human life has slowed down a lot.

People will get used to it.

The world is going to be different ...

It is impossible to change the speed of light, and the definition of light itself is still debated in physics, but it is true that his speed cannot be changed, because light is a field (somewhat similar to a magnetic field) rather than matter, and there is no speed or slowness, so his propagation speed is the first speed of the universe (the fastest in the universe), in other words, it is a phenomenon produced because of this speed, and the propagation of electricity is only half of his.

Then the eyes will see things with jet lag, you may see light for a few seconds or even longer, people may be able to chase the speed of light, and when you run, you can see the same scene all the time, so that everything you see is out of time.

In this way, when you hear the sound of fireworks at home, you can see the fireworks when you go out, and you won't miss it.

It's dark in the house, you turn on the light, and it takes a while for you to feel bright

It seems that if you exceed the speed of light, it is possible to reach time travel, and you can travel through it

Turn on the flashlight and feel the light after a while.

It's easy to go beyond the speed of light and travel back in time.

First of all, everything you see is seen much after it happened, and then you do anything that no one else can see until much later.

There are experiments that reduce the speed of light in a medium to 17 meters and seconds, which is lower than the speed of sound in that medium.

It is not possible to see a fast-moving car in time, and a large number of accidents occur.

Wind is formed by the flow of air, and if the wind has the speed of light, it means that the molecules such as oxygen and nitrogen in the air have the speed of light. We know that an object (a molecule is also a tiny object) can rotate around the Earth when it reaches a velocity of kilometers per second (the first cosmic velocity); When it reaches kilometer seconds (the second cosmic velocity), it can break free from the gravitational pull of the Earth and revolve around the Sun. When it reaches kilometer seconds (the third cosmic velocity), the Sun will no longer be able to restrain it, and it will fly out of the solar system and travel into the Milky Way. The speed of light is 300,000 kilometers per second.

My dear, I don't know how much cosmic speed it is! Such a fast molecule, it must be that the gravitational pull of the Milky Way can't hold it, and it will run around the entire universe. The only thing that doesn't know for sure is what happens when it moves near the black hole.

The gravitational pull of a black hole is so great that ordinary light is completely absorbed by it when it hits it. But photons are almost massless, and their energy comes mainly from their electromagnetic radiation, not from their kinetic energy. Molecules moving at the speed of light have considerable kinetic energy, and if they hit a black hole, will they still be absorbed?

Or will it be ** back? Haha, can anyone build a lab to do this experiment and see how it goes?

The earth must be "beautiful", that is, the wind is all "light", because the particles that make up the "wind" have broken free from the earth's gravity and flown out, and the "wind" will naturally be "light", and there will be no more.

Wind is caused by the movement of gas molecules in the air, while light is the movement of photons, a type of electromagnetic wave, which is a mode of energy propagation.

The wind can only have the speed of light if it turns into light. That is, the gas molecules in the air are completely converted into energy and released. This can only happen when positive matter meets antimatter, which is called annihilation.

So to speak, when the wind has the speed of light, the world disappears.

After that, it's time to ask Hawking.

Wind is a type of air, and if the air were moving so fast, gravity would have been unable to restrain the wind for a long time, and (far greater than the first cosmic velocity) would have dispersed into the universe.

The wind is gone, and life on Earth is gone, or the Earth does not exist at all, blowing, like a bubble. This is a reasonable explanation based on assumptions.

It is recommended to choose the first floor as the best, and express the correct answer in the shortest language.

The world is beautiful.

Disappear and start all over again.

Theoretically, your assumptions will never come true.

When the wind has the speed of light, there is no wind in the world. There is no light left.

The velocity of an object can only be infinitely close to the speed of light and cannot reach the speed of light.

It won't be too hot in the summer. The heat dissipates and flows too fast.

That kind of life will pass in a few minutes

Everything in the world is scary to be scratched by the wind.

For example, if you look at a star at night and say that a star is 10,000 light-years away from the Earth, then the position of star A you see is the position it was in 10,000 years ago (it may no longer be in place now), and its brightness and size are also 10,000 years ago. Because the light that comes to your eyes came from star A 1w years ago

In the same way, if the speed of light is reduced to 1/100,000, which is 3 kilometers per second, then in this case, everything you see at 3 kilometers away from you is 1 second ago, and what you see at 6 kilometers is 2 seconds ago

If a sniper wants to shoot at a target 3 kilometers away, he will basically miss because the target he is aiming at is 1 second ago

At the same speed of light, a good sniper is likely to hit a target 3 kilometers away because he is aiming at a target that is 100,000th of a second ago

This assumption is untenable.

Instead, it's assumed that if there were speeds that exceeded the speed of light, then time could be reversed.

The world will not be in a state of eternal night.

We will still see lightning first, and then we will hear thunder.

At that time"The speed of light"It's 3km s, and the satellite can't see the movement on the ground with an optical lens, because it will be very stuck.

That's going to slow things down!

Suppose the student is 6m away from the classroom, and the teacher makes a sound, and the student can only hear it after 6s, and it will not be clearer, so A is wrong;

The speed at which sound travels through the air becomes 1 meter second, which is normal and the performance of the Spike 1 Band in the venue will become chaotic; The sound of the car's horn propagates too slowly to play its original role again; The sound of the passenger plane trembling and hunger came, and the plane could not be seen for a long time, so B, C, and D were correct

So choose A