I know this may be a bit of a long shot, but this guy's videos are really good. I take it he is an engineer with a fair amount of relevant work background. He takes tools and various appliances apart and assesses them for material/design strengths and weaknesses. As a Canadian he has a fine command of the Canadian language and an awesome sense of humor. Anyway . . . these are great videos, just wondered if anyone else knows about them, and if not just wanted to share them. Here's a sample.
I guess I'm in the minority of the minority, but I used to watch him until I got sick of his "unique" vocabulary. He's still very knowledgeable and talented.