You want to prove me wrong so I'm asking you to show me I'm wrong.
You have been shown to be wrong, repeatedly, and you just ignore it.
All I'm doing is asking you to follow a few instructions.
You claim Earth is flat, so unless you are now going to admit that you wouldn't be able to see the ground through a level tube on a FE, what is the point? Just what do you think it will show?
The horizon has to be at eye level.
Any can look up or down but that is not horizontal vision, is it?
In case you are just learning English, "horizon" and "horizontal" are different words, with different meanings.
There is no need for the horizon to be at eye level, and again, actual evidence shows that it is below.
Also note that "eye level" is not the same as "horizontal" either, nor is it the same as "flat".
However if you were to go to where the horizon is, you would find it horizontal to Earth.
Does this now mean you accept that your argument applies just as well to the FE and thus claim that on a FE you can't see the horizon through a levelled tube?
This is the thought that has been niggling in the back of my mind as well. The way Scepti is presenting his argument about how FOV diameter changes (or not) with distance means you wouldn't see the surface or a curved surface or flat surface of Earth. As long as the tube was level (i.e. parallel) with the ground and the tube was not in contact with the ground, then based on his argument you would never see the ground regardless of whether the Earth is flat or not.
Correct.
So you now admit that one of the earliest claims of yours in this thread was wrong?
That seeing the horizon through a level tube is not evidence that Earth is flat, because if Earth is flat you should see nothing but sky?
It only provides supporting evidence to those who wish to see the nonsense of a globe. That would be enough to potentially change some minds to the realisation we do not live on a globe.
No, according to your admission, it is also evidence AGAINST a FE.
Those who accept the reality of a globe, see no problem with seeing the horizon through a level tube, as that is what you would actually expect.
But you claim you should see nothing but sky, with that claim now also applying to a FE, so seeing the horizon through a levelled tube should show you that Earth isn't flat.
As it has been your claim that that is how it is seen, why do you not admit Earth isn't flat?
In order to attempt to justify your irrational and baseless attack on the RE, you have had to resort to claiming you are completely wrong and that Earth cannot be flat.
You wouldn't see the two rails converge, unless you were using a scope or your naked eyes.
This is why the tube is offered.
A tube is still using your naked eye.
The only way to change that is if you use a lens.
All a tube does is block out a part of your vision.
It does not make magical tunnel vision where looking through a 1 inch wide tube means you can only see 1 inch of any object.
For example, a picture of rails taken with a standard camera:
Then, if instead you looked through a tube, you would end up with something like this:
And zooming in (just making the image larger, not using any lens) on that tunnel part, you see this:
So even with the "tunnel vision" you still clearly see the rails converge.
Again, what magic stops the blue line of light reaching your eye?
Unless you can actually answer this, you have no justification at all for why it shouldn't be visible and thus no justification at all for why the ground shouldn't be.
That is because that blue line can continue outside the bounds of the 1 inch, and reach the ground.
What you are suggesting would actually need a lens.
A lens which does this to the light:
This lens would take parallel rays of light and cause them to converge to the eye.
The opposite of this (taking diverging rays of light and making them parallel) is done at a lighthouse to give a straight beam from a "point" light source.
Notice that the lens changes the direction of the light rays. The come in from the right all parallel, but then on the left of the lens they are all converging to the eye.
Don't bother trying to back me into a corner.
Don't waste any more time arguing it. Either do it or don't.
Considering just how dishonest you have been, backing you into a corner is the only possible reason for anyone to really want to bother taking any effort to appease you.
Otherwise you will just come up with some pathetic excuse for why it must be wrong so you can magically pretend to be correct.
That will be a massive waste of time, as the entire experiment will be a waste that gets people no where.
So if you don't want to waste time, list every demand that is required to show that you are wrong, such that when it is provided you will just admit you are wrong rather than coming up with more excuses when the evidence is provided that shows you are wrong; or stop demanding such evidence when you will just dismiss it anyway.