Granite grinding WITHOUT powertools

My first attempt at grinding granite by hand. Why am I doing this Is it possible Or is it alien technology)) Answers in this video. I ll also debunk a few myths about ancient technology Music from, Uppbeat (free for Creators ): License code: 9KPJLU9QHQVQHKAQ Music from, Uppbeat (free for Creators ): License code: 9VTZT4GZSOD4A3S4