LOL. Nice that you ignore that I DID answer that I didn't know and provided you an example where I do know, and that is absolutely does show curvature... but you choose to ignore it because it doesn't fit your flat earth fantasy world... but you lookin' fer da TRUF!!!
Your identity must be so wrapped up in feeling like you are one of the smartest people ever to live that you are not capable of ever admitting to the curvature when it's right in front of your face.
Well, ships DO go over the curvature of the earth, and planes disappear behind it... I'm sorry that it too difficult for you to admit, but it will still be round regardless of whether you want it to be or not. It's not an opinion, and there is no belief required.
RE: Question : At what height do we see curvature