[Macarios]

There is one question I failed to find in wiki or FAQ.

How DOES Twilight (Rayleigh Scattering) works on Flat Earth?

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Let me explain why the question, and what problems Flat model has in explaining this.

These are the ways how twilight DOESN'T work.
However, the goal is to find out how it DOES.

We will try to cover all possibilitires.
If you have any possibility not described here, please reveal it.
It might be the solution.

What do we know about Sun's radiation?
What causes night on Flat model?
Sun light can be either emitted in all direction, or in cone-shaped beam.
Sun rays can either have unlimited or limited reach.
Obviously, if the sunlight is "cone-shaped" then it is irrelevant if the sunlight has limited or unlimited reach.

It leaves us with three possibilities:
1 - cone shaped radiation
2 - limited reach of sunlight rays
3 - perspective

Any other possibility?
I'm not limiting it to this forum.
There are other forums, YouTube channels, FB groups...
After all these years at least some Flat Earther would measure something and learn from reality how Sun behaves.
Others wouldn't miss the opportunity to use that as proof.

So, for now this is all we have.
(If there's more, please provide the description.)

1 - cone shaped radiation

We don't see Sun before sunrise or after sunset because sunlight is directed to limited area below it.
This is why this way twilight doesn't work:


If it was blocked from our eyes, it is also blocked from the air above us and can't make it scatter daylight towards us.

Also, at some point in life we all saw shadow of horizon on mountain side behind us in the moment when the Sun just set.
Or on some tall building(s).
The shadow crawls up for sunset and down for sunrise.
In Dubai the shadow of horizon takes about three minutes to crawl up to the top floor of Burj Khalifa 828 meters high.

This is why idea of "cone-shaped sunlight" contradicts reality:


From where comes the light hitting that mountain top?

2 - limited reach of sunlight rays

Sunlight rays simply have limited length (distance that they can travel), our eyes just have to be close enough to Sun.
This is why it doesn't work:


If it can't reach our eyes directly (shortest path), it also can't reach along some diffused, longer path through air around.

3 - perspective

Sun raises or sets because atmosphere air layers bend ligt:
This is why it doesn't work:


Above the air is vacuum, and if sunlight is not limited in some other way it will reach top of the air layers and produce blue sky.

Any more ideas, please?

[Ratboy]

And the magical model has to provide equal day and night to everyone everywhere.

[Scroogie]

That's a rather interesting examination of the subject. Don't expect much involvement from the FE fraternity. though. There are too many pitfalls in this subject for all but the most daring of FE proponents.

Notwithstanding the inconsistencies you've introduced, I'm glad that you have included the moon in the presentation as it presents yet another problem I've yet to see addressed by any FEer. That is the question of how the sun, a spotlight shining predominantly downward, manages to illuminate the moon. Is the sun equipped with a second very narrow spotlight constantly focused on the moon? Is there a narrow 360 degree (azimuthal) component of its radiation whose elevation serendipitously happens to correspond to the elevation of the moon? Is the moon self luminous? Is it magic, or is the moon simply an hallucination?

[AATW]

That is the question of how the sun, a spotlight shining predominantly downward, manages to illuminate the moon. Is the sun equipped with a second very narrow spotlight constantly focused on the moon? Is there a narrow 360 degree (azimuthal) component of its radiation whose elevation serendipitously happens to correspond to the elevation of the moon?

Actually, they do have an answer to this which I finally saw Tom post recently. I thought that their idea was that the sun is a spotlight but actually they don't think that.
They (well, Tom - FE views do vary) believe that the sun shines in all directions so it does illuminate the moon.
But then why, I hear you ask, doesn't it shine over the whole flat earth?
Perspective.
Stop laughing, that's really their answer. The sun "sets" because of perspective.
Obviously in real life this is, I believe the technical term is "horseshit". That's not how perspective works at all. But that is their answer.