By far the most popular technique of producing fire between prehistoric peoples was the friction technique. Most often, a pointed hardwood was twirled concerning the palms and pressed into a gap on the sting of the softer Wooden. Flint, pyrites, and fire drills are already present in Neolithic web sites https://andrescuiwl.bligblogging.com/36982900/not-known-facts-about-choosing-the-right-fire-safety-expert-for-your-business