A vibration is a movement up and down
Up and down? !!! Heck, whatever does that mean?
It seems like the article's author has bent the figures a little to suit his argument.
Good story tellers can put words together to create any amount of credibly sounding scientific argument, and challenging conventions with separate unsubstantiated beliefs.
Thanks for pulling things back into line a bit Noel. I'm not re-tuning my piano for anyone.
(PS: And certainly no disrespect to you Leo for bringing this to the discussion, only questioning the original 432 author.)
Trev