(WYTV) – Why do your jeans have those little rivets–tiny metal studs near the front pockets? Miners, railroad workers, ...

Look down at your jeans right now. Go ahead. Whether they’re dark indigo, faded, or years past their best, they almost certainly have a handful of small copper-colored metal studs near the pockets.

You may not have consciously thought about it, but the way we build cars is very different from the way we build airplanes. Your sedan or SUV has a smooth, unibody exterior because its individual ...