@ClockTower
Was this really worth another thread? Are the 12 pages and counting, of the 'Perfectly flat, flaw-free' glass thread not enough?
And despite all the moaning about numbers, you are still agreeing that there would be some curvature? Which then contradicts the very definition of Perfectly flat, flaw-free glass. So after 12 pages, a second thread and despite me having given you the RE answer twice before in other threads, you are still unable to show how the glass could be flat on a round earth?
I will say this to you one final time.
It is Perfectly Flat Flaw-Free F*****g Glass! Ahhhhhhhh! Ahhhhhhhhhhh! AAAAAAHHHHHH!!!!!!!!!!!!!!

Define Perfect.
Define Flat.
Define Flaw-Free.
What does this tell you about the glass? Is it curved? Are there any flaws that might allow for it to be curved? What do we know about this glass. Oh yeah, that's right. Its Perfectly flat flaw-free glass.
It isn't marketing hyperbole. It isn't that you can cut into the earth to make the liquid flat or use a level. It isn't because they only make tiny pieces. Its not down to tolerances or any of the other things I have told you a million times. Altogether now ... What is it?
Perfectly Flat Flaw-Free Glass!