Why do they call it an airPLANE 🛩️🗺️ Why is it called sea LEVEL 🌊📐 Why is it called the HORIZON 🌅 Why do we live on a PLANEt 🤯 It should be PLANE to see by now that the EARTH IS FLAT 🌎💦

Why do they call it a hemiSPHERE ?

You truly are less intelligent than the average ten year old 😬 It’s embarrassing pal

Airplane because it uses planes to stay aloft. See biplanes and triplanes for confirmation of its having nothing to do with the shape of the Earth. Level≠flat. Horizon from horizon kyklos, "dividing circle". Planet from planetes, "wandering". And you know this.

will we ever land on Mars?

The horison on an ocean is an undifferentiable transition from the color of the sky to the ocean, a change that is too sudden to be explained by atmospheric perspective (fading at a dustance). Even if it was a smooth, differentiable transition, which is what would be seen on a flat earth ocean, its asymptote, close to where the last remaining hint of ocean would be detected, is lower than "traight out" (true horizontal, exactly 90 degrees from vertical). Unless flat earthers can present a testable mechanism by which the horizon is always low, especially when seen from high elevation, it is seen that it lacks grounding in testable reality. The same is true with the setting sun, which is too large, too fast, and wouldn't even be visible in your locality for most of the year if it was moving in circles above a flat Earth. Same with lunar phases looking the same everywhere to within a tiny margin or error, consistent with laser distance measurements. Same with identicall 24-hour sun observations visiting the Arctic and Antarctic at opposite times a year, both going in opposite directions. Same with stars and sunsets moving the wrong way in the Southern hemisphere. Same with the corriolis effect that anyone can easily test. Same with planetary motion. Same with gravity measurements between objects in the lab that anyone can reproduce. Same with amature rocket footage of visible curvature. Crowd fund. Launch your own rectilinear camera. See for yourself. Same with objects rising above the curve ONLY at times when refractionary distortion is evident. Same with the curvature visible down Lake Ponchartrain Bridge and down highway 80 across Utah Salt Flats. Same with tides. Same with the very detectable effects of the centrifugal forces of a rotating Earth on the weight of objects at different lattitudes. Take a vacation. Bring a precision scale with locked tare function and see for yourself how accurately the globe model predicts the descrapancy. Same with siderial rotation based on latitude. Same with stellar paralax patterns with respect to standard candles and star brightness. None of these phenomena are explained rigorously and clearly by testable science that would be exclusive to a flat earth model. There is no unifying cohesive flat Earth model in the first place. While flat earthers are plagued by bizarre ad hoc excuses and glaring contradictions, the rest of of the world has long moved on, having understood why these things are so accurately and beautifully accounted for using planetary sphericity, rotation and the arrangement and orbital mechanics of the solar system. The flat Earth is a joke, and a bad one at that..

your evidence is overwhelming

That's about the stupidest example I've ever heard of somebody believe and why it's flat Earth because you're flying over a flat Earth with a flat object get the f*** out of here go look at how physics works and magnetisms

What's underneath it?

seriously?

All of these words have origins, you can look them up. None of these origins help your flat earth nonsense. I thought you guys did your own research?