One cannot use the 'eye ball test' in matters of miles and distance. The eyes simply aren't designed as long-distance viewing devices.
Also, you continue to ignore the blatant LIE of modern science, related to the curvature (and lack thereof). The 2nd oil rig should be barely viewable, due to the curve.
The 'eye ball test' was in relation to looking at the moon through a telescope or binoculars, can also find some planets with the telescope and you can very clearly see that we are surrounded by globes.
I don't have to argue with you about the maths, I don't know about the maths, but I know about water, and water sits flat. In any case, I thought by using a hostile video to make my point it would help convince you but it's clearly not enough, I'd need to know what tools are available to you in which we can find ways for you to know for sure.
Binoculars or Telescope are something you could easily get, there are apps to show you when and where certain close planets will be for a telescope, then you can have a look at the Moon and Planets yourself and see that they are most certainly a globe and that we are surrounded by globes, it's rather cool too looking at the moon through a telescope... I didn't see the US flag there though lol.
God Bless