Saying that the stuff in the videos proves anything, is a false statement. The videos don't prove anything. Why not? Because the information contained in them is flawed or misrepresented.

Another great point for the earth not being flat is, the nearer any rockets get to the dome, the gravity of the mass of water beyond the dome would cause rockets to become lighter by pulling them towards the dome. When this happened, the rockets wouldn't need as much fuel the higher they went.

In other words, you should be able to get out your telescope and see a bunch of rockets that crashed into the dome, and are held to it by the gravity of the mass of water on the other side of the dome.

And don't say that density is is gravity. Saying this simply changes the definition of "density."