Jeez... You lead by saying 'Yes, I know!' and then go on to quite patently show you DON'T know!!!Yes, yes I know! I'm asking where is the aggressive (high energy) movement is coming from that forms the transverse wave - the small rod tip movement alone doesn't look enough - unless, and god forbid, it's loading and unloading. A bit like a spring. (Aaarghhh!)
Again for the hard of hearing... Amplitude is not a measure of energy!!!!!