Probably the most prevalent approach of producing fire amongst prehistoric peoples was the friction strategy. Most commonly, a pointed hardwood was twirled concerning the palms and pressed right into a hole on the edge of a softer Wooden. Flint, pyrites, and fire drills are actually found in Neolithic sites in https://benefits-of-hiring-a-loca80011.blogdanica.com/36320579/the-fact-about-professional-fire-risk-assessors-that-no-one-is-suggesting