The most common method of manufacturing fire amongst prehistoric peoples was the friction process. Most often, a pointed hardwood was twirled amongst the palms and pressed right into a hole on the sting of the softer wood. Flint, pyrites, and fire drills are already located in Neolithic web-sites in Europe. https://understandingyourlegaldut90112.diowebhost.com/91314322/the-best-side-of-fire-safety-risk-evaluation