I have a new proof that the Earth is flat, checkmate globish sheep

According to the dumb espherical Earth HYPOTHESIS, the Earth spins at 1670Km/h, but why when I jump i fall at the same place? And there's more, unlike all you globetards, I actually study physics, I watch hundreds of Facebook and Youtube videos everyday, and I saw something about a thing that absolutely destroys the Globe Earth, its called "Angular Momentum", you guys probably never heard of that, this is advanced stuff. Why if I jump north or south, I dont get dragged horizontally because of the angular momentum? I its because the Earth flat, and this proofs that the Earth is flat. Checkmate.
If you guys change your minds about this dumb theory, I can send the link of the video for you, it was made from a very smart guy, he wears a white jacket, drinks coffee and says smart things like refractional inverted density, that must proof the Earth is flat. I'm also free to answer all the cooment that tries to disproof this theory.