Why is the speed of light 300,000 km per second and not 350,000?

The speed of light is not constant and unchanging, and if it does not change, it is an abstraction of the speed of light, and the specific speed of light is limited by the specific environment and medium, so it can not change.

The speed of light is infinite, and there is no past and future in the universe, only the present. And the speed of light must be a finite value, only need to measure this finite value, and scientists measure this value, which is accurate.

Because the speed of light of 300,000 kilometers per second according to Einstein's theory of relativity is the ultimate speed of the universe, it cannot be 350,000 kilometers per second.

It was measured, and the result was 300,000 kilometers per second. For example, why China's land area is 9.6 million square kilometers instead of 10 million, the same reason, objectively existing and tested results.

The determination of the speed of light is a long and reciprocal process, from 1607, when Galileo Galilei first measured the speed of light, to 1972, when the speed of light propagation in a vacuum was measured in meters and seconds. In 1973, the International Bureau of Weights and Measures decided that the speed of light in a vacuum should be 299792458 meters and seconds, which is calculated by high-precision optical frequency measurement and high-precision optical wavelength measurement, that is, by scalar equation c = f. Thus we know that the speed of light in air and vacuum is 300,000 kilometers per second.

If the medium changes, for example, light in water or glass due to the refraction speed will be slowed down, after recognizing the effect of the refractive index on the speed of light, scientists after experiments, can control the speed of light in a certain range, so slow light, extremely slow light and other experiments have been clearly proven, in fact, starting from the concept of wave-particle duality, light is also a particle, when the energy of the particle will change, the speed of light will also decrease. Why is the speed of light 300,000 kilometers per second, not 350,000 or a non-integer? There are two reasons for this, one is that one meter is so long, and one second is so fast, if people re-rule the length of meters and seconds, then the speed of light is not 300,000 kilometers and seconds, and the other is that the speed of light itself is not a whole 300,000 kilometers and seconds, it is a speed in a vacuum.

In practice, the conclusion that the speed of light is a constant was first obtained from Maxwell's simultaneous equations, Maxwell predicted the existence of electromagnetic waves, and obtained that its propagation speed is v0 = 1 0 0, (where v0 is the speed of electromagnetic waves, 0 is the vacuum dielectric constant, 0 is the vacuum permeability, all constants), and the calculated value is exactly the same as the measured speed of light at that time, so he boldly determined that light is also an electromagnetic wave, and their speed is a constant. However, Maxwell's electromagnetic theory does not fit Galileo's principle of relativity, and the speed of light is a constant, which is in line with Galileo's transformation. After careful consideration, Einstein thought that the principle of relativity should be a universal principle, and the constant speed of light should rise to a principle, and Galileo's principle of relativity was imperfect, it was only a principle of relativity about space, and it was short of the relativity of time, so he stopped implementing this principle of relativity, and finally proposed the special theory of relativity.

The speed of light is independent of the state of motion of the light source, the speed of light is constant with respect to any inertial frame, and the speed of any object does not exceed the speed of light, including the photon itself.

We define the speed of light as one-299792458 th of a meter, so it is equal to about 300,000 kilometers, and if it is equal to about 350,000 kilometers, the difference is too big; It is believed that the background of the universe is limited by the speed of light, and the movement of the passive branch is mainly the power of the bridge in the universe.

The speed of light in a vacuum is 10,000 km per second, and the speed of light does not slow down.

There will be specific values for the indiscriminate propagation of the speed of light, and it will also be related to the nature of life in the universe, so it is 300,000 kilometers per second. It is affected by the speed of vacuum propagation, and it is the vacuum factor that limits the speed of light.

There are often questions on the Internet: Why is the speed of light 300,000 kilometers per second? But the real question is not what is the speed of light, but "why isn't the speed of light infinitely fast?"

Because no matter what the speed of light is, you can keep asking. For example, even if the speed of light is 350,000 km/s (or whatever) instead of 300,000 km/s, you might ask: why not 400,000 km/s?

There is no end to this investigation. The value of the speed of light is only artificially defined, and the size of the value does not make much sense.

As long as the speed of light is not infinitely fast, no matter how fast, all we have to do is measure it. So why isn't the speed of light infinitely fast? For humans, the speed of light is almost infinitely fast, but in the vastness of space, the speed of light could not be slower.

The Milky Way is at least 200,000 light-years in diameter, which means that it would take 200,000 years to surpass our galaxy, let alone the vastness of the universe. Why is the speed of light so slow? Why only 300,000 kilometers per second?

Some scientists have come up with this reverse thinking: in our universe, there seems to be no reason to limit the speed of light, but it can only go so fast.

Another way of thinking is: what if the speed of light changes faster? We can't make the speed of light faster, but supercomputers can tell us that by simulating the environment in the universe, we can learn more about it.

Computer simulations show that when the speed of light increases, the speed of everything changes, the sun burns faster, the life span is much shorter, the sun is brighter, and the Earth is scorched, making the Kena solar system unfit for life. Zoomed in, the universe would collapse completely, and stars and planets would not be able to form, let alone life.

<>So, if the speed of light increases, let's say, 1,000 times, what kind of star system will produce life? We don't know the answer, and there probably won't be any such star system. That's why we live in a world where the speed of light reaches 300,000 kilometers per second.

Maybe you feel something: the anthropic principle, and I'm trying to get back to that with the anthropic principle. To put it bluntly, if the speed of light was not 300,000 kilometers per second, our world would not exist, and certainly no one would ask this question.

If you want to accelerate to the speed of light, then at the time when the speed of the device is about to reach the speed of light, its mass will also increase as the speed increases. And it will tend to infinity. 300,000 kilometers per second.

They are very fast in the orbit of the Earth Feast. Can't be faster or slower.

Light is also electromagnetic waves, and the speed of electromagnetic waves is the speed of light, which can only be 300,000 kilometers per second. The speed of light in the vacuum chain is fixed and constant, and it is an absolute value, which does not change with the frame of reference, which is the result of the theory of electromagnetic waves, and is consistent with the results of all experiments up to the present time.

Because this is fixed, I personally think so, this is really amazing.

The speed of light in a vacuum may be related to the density of space, and if the density of space is 0, the speed of light is infinite. The density of space around the solar system determines the speed of light at 300,000 km/s.

Because the speed of light travels at a constant speed, it is a physical medium that cannot be controlled manually or automatically.

Air, as well as some other gases, as well as tiny particles in the air, affect and limit the speed of light, so the speed of light travels slower in the air.

I think it's the environment that limits the speed of light, because in order to make the speed of light reach a very fast point, you must first create a very good conditions and environment for the speed of light.

Light is invisible, and what we see is what is illuminated by light. There is no shortage of light in the space where the Sun is located. But it was dark.

Dust, gases, particles, meteorites, these things limit the speed of light, and they also generate heat by friction.

In the past, people didn't know what the speed of light was, but after a lot of scientific measurements, it was exactly 300,000 kilometers per second, which is not a coincidence, just because the speed of the light is too fast.

In fact, it is not such a coincidence, and the pinning is the speed of light of the entire nuclear mill, they have a fixed change fighting law, and everything in nature will have a fixed force, and there is a saying that this is what it looks like.

This is only an approximate estimate, and the more accurate value is 299792458 meters per second, which is also a kind of rent early hidden data measured through multiple experiments.