The curvature of the earth can easily be distorted by a lens. However, read the comments section of that video. In it, as I mentioned before, it is explained why the noise cuts off (the rocket motor finished, so yes, it got quiet), and it explained why the rocket appears to suddenly stop spinning (it had a device to stop the spinning for a reason). I put links in there to explain it all.In your video "proving the rocket hit something" you want us to believe you, yet the same video shows the curvature of the earth which I am sure you will make up some "proof" that it really is not showing that.
How about Tardigrades?Someone needs to start a flat earth thread. That could readily drift off into perpetual motion mechanisms!
It would be a lot of fun for those who enjoy that silly stuff.
Me? I'm trying to figure out aliens!