The most popular process of producing fire among prehistoric peoples was the friction process. Mostly, a pointed hardwood was twirled among the palms and pressed into a gap on the edge of the softer wood. Flint, pyrites, and fire drills have been present in Neolithic websites in Europe. Fire Safety https://buildingfiresafetyinspect23344.full-design.com/benefits-of-hiring-a-local-fire-risk-assessment-company-secrets-78643585