Quite possibly the most popular strategy of manufacturing fire among prehistoric peoples was the friction technique. Mostly, a pointed hardwood was twirled between the palms and pressed into a hole on the edge of the softer wood. Flint, pyrites, and fire drills are already found in Neolithic sites in Europe. https://donovanujynb.bloggazzo.com/35245940/getting-my-fire-risk-assessment-services-to-work