Hello; This procedure for splitting rocks by hand is always spectacular to see. Therefore it has been used by the ancient Egyptians already and still in Europe during the fifties of the last century for directly obtaining up to 3.0m in diameter and up to 0.5m thick grinding wheels from various rock quarries. All of this is amazing, but at about 4:08 when he 'one arms' the lever to split it, I was hooked! I could watch this all day, everyday. Amazing that I just found out how they actually did build the great pyramid (and many many many others) and it doesn't involve any rock quarrying, moving, or lifting whatsoever. I had been studying it for years and when I finally heard about the method, it blew me away how easy it was.