Wow, thanks for listing all those interesting channels. I've been looking at some of them and they're great! One I'd add is called "Smarter Every Day" by a dest

Wow, thanks for listing all those interesting channels. I've been looking at some of them and they're great! One I'd add is called "Smarter Every Day" by a destinws2. He's an aeronautics engineer, I think, but mostly shoots guns with a high speed camera. He always includes interesting science, though, too.