This is a long and complicated issue. It would be a little easier to explain this in my language. In addition, it will be twice as difficult for you to understand the problem because of the language barrier. Nevertheless, I will help you understand the subject by strengthening it with shapes. I hope it is understandable. You can be sure that I will do my best to make you understand as the smartest flat earth believer in this forum.

First, let's start with how colors are formed.

Colors are generally expressed by the wavelengths of incoming light. These wavelengths represent:

**The colors of the visible light spectrum**

Color ~ Wavelength

Red ~ 700–635 nm

Orange ~ 635–590 nm

Yellow ~ 590–560 nm

Green ~ 560–520 nm

Cyan ~ 520–490 nm

Blue ~ 490–450 nm

Violet ~ 450–400 nm

We can't see Infrared lights have bigger wavelength than 1000 nm and ultraviolet lights have wavelength less than 300nm.

The color of the light you observe will not be affected unless you move away from a light source at a level comparable to the speed of light. Before we move on to this topic, let's simply show the wavelength. in terms of no missing parts remain.

I mean this, when I say wavelenght:

In the most general sense, the distance between the highest points of two consecutive waves is defined as the wavelength.

It is known that the color of objects moving away rapidly tends to turn red. This is because the wavelength has increased relatively to the observer. I mean this;

When an object moves away at a speed comparable to the speed of light, or when the observer moves similarly from the light source, the wavelength of the light waves reaching the observer will increase as in the figure. This causes the color of the actual light coming out of the light source to be perceived differently by the observer.

Could this be true for the sun? Can the yellow light that we see in the middle of the day turn into a red light due to the sun going away?

The wavelength of the yellow light of the sun we see in the middle of the day: 570 nm.

The wavelength of the red light of the sun we see at the sun settings: 650 nm averegally.

Let's make a simple proportion. 650/570= 1,14, ie 1 and plus 14%. In this case, the wavelength of light increased by 14%. For this to happen, the light source must move away with speed 14% of speed of light.

I'll consider both theories;

In FE theory and corrected by my calculations it revolves around a circle average 25.000kms circumference. It rotates in 24 hours. We'll calculate it this way.

According to globularist theory, the speed of sun is: 220km/h = 61 m/s.

According to FE theory; the speed of sun is: 25.000kms/24 hours= 289 m/s.

I will take the most unfavorable value, the flat earth value. It has 289 m/s. It is the proportion of speed of light: 289 m/s / 300.000.000m/s = 9,6x10^-7 This is not a comparable value with speed of light.

So the sun's moving away is not a reason for its color of the light to turn red.

Now here I will consider the second factor, the structure of the dome. The issue that the dome is not exactly liquid, but exhibits liquid properties, has previously been investigated in different places.

When the light enters the denser environment from less dense environment, it behaves as follows:

So does this refraction also change the wavelength? This is the most sensitive spot of this issue.

According to rensselaer polytechnic institute, it changes:

Light travels as waves, with the wavefronts perpendicular to the direction of motion. In the animation shown here, the wavefronts are represented by the green parallel lines. The red arrow represents the direction of motion. As light moves from air into water, it not only slows, but the wavelength changes. The animation below illustrates how the wavelength becomes shorter in the denser medium of water. To replay an animation, click on "replay". Once you have viewed the first animation, click on "2" to continue.

Interestingly enough, the frequency of the waves does not change as the light moves from air to water. As we saw in the Review page, the wave's speed v is related to both the frequency f and the wavelength l :

v = l f.

Combining the above expression for velocity with the definition of index of refraction, we find a relationship between the wavelength l = v/f in a medium and the wavelengthl 0 = c/f in vacuum:

In the above equation, the frequencies cancel because frequency does not change as light moves from one medium to another.

Source: https://www.rpi.edu/dept/phys/Dept2/APPhys1/optics/optics/node7.html

From the information above, we see that interestingly the frequency does not change when the light passes from air to water, but the wavelength changes when passing from water to air. It is important information that the wavelength is changing, although the frenax does not change. Because the color of the light is not about frequency, but about wavelength.

It is understood that a wavelength calculation has been made about the refractive index. We have calculated the refraction index of light between dome and air more than once. We have critical angle values between 23 degrees and 30 degrees. I want to take 30 degrees critical angle because it is worse.

I'll try to find the refractive index depend on this critical angle. Can it be possible to calculate? According to

The relationship between critical angle and refractive index can be mathematically written as –

Refractive index to Critical angle μab=1/sinC No SI unit

Where,

C is the critical angle.

μ is the refractive index of the medium.

a and b represent two medium in which light ray travels.

So; refractive index of sunlight between dome and air is:

μ= 1/sin 30° = 2.

There is a misscalculation here. Because this value should be close to 1. So we should get the value of 90-30, not 30 degrees. While you are doing calculation, check your results logically from time to time.

μ= 1/sin 60°= 1,15. This is logical.

What was the main formula?

Lets put this μ on the formula;

λa / λ = c/μ

>>

We'll get the wavelenght of the yellow light as we mentioned above:

Different things may be described in the formula. The important thing here is to establish a logical relationship. We see that the wavelength of light is directly related to the change in refractive index. Therefore, thinking proportionally instead of dealing with values will make our job easier in terms of formulation.

λ1= 570

K= 1,15

λ2= 570*1,15= 655

This is the light we see when sun setting according to above calculations. This color should be it:

If we get the wavelenght of yellow light as 600, is more possibly seeming above, and get the refractive index with dome-air as 23 degrees, it turns to:

λ1= 600

K= 1/sin67 = 1,08

λ2= 600*1,08= 648

It is still about in same place:

If you have a question to ask me, I, as a most prominent and smartest Flat Earther all over the internet incontestably, am always ready to answer.

Zeta came, Zeta saw, Zeta conquered.

PS: I want to explain why I have corrected the critical angle value. Because I have used the critical angle so far in the meaning of the angle of the sunlight and air horizontal meaning. But its general meaning its angle with vertical direction, as the following drawing. Hence I have convert it to vertical direction by reducing it from 90 degrees.

There is a misscalculation here. Because this value should be close to 1. So we should get the value of 90-30, not 30 degrees.

We call this as scientific prediction. This ability is gained through working hard.