Depends on what you mean by rednecks. A lot of the folks up here (upstate NY) who proudly call themselves rednecks have quite a lot of mechanical knack - including understanding of mechanical forces, loads, etc., physics, chemistry.. After all, if you're going to build a dirt track race car out of an old Caddy, you need to make sure it will hold together in a wreck. Same with improvised explosives, homemade ammunition, etc. Are they all like this? No. However, many are, and the ones that are tend to be mechanics, machinists, and compulsive putterers and tinkerers.