The most widespread method of manufacturing fire amid prehistoric peoples was the friction technique. Most often, a pointed hardwood was twirled involving the palms and pressed into a hole on the edge of the softer wood. Flint, pyrites, and fire drills are actually found in Neolithic web sites in Europe. https://howfiresafetyauditshelppr78899.blog4youth.com/36911465/what-does-fire-safety-consultant-mean