Traditional mirrors have been keeping semi truck drivers and those around them on the road safe for decades. It's more or less a solved science, which might be why some engineers have been looking ...

Some semi-trucks have two giant silver cylinders on their sides, but others don't. Here's why that is, and what exactly those two cylinders accomplish.

I’ll be the first to say that aerodynamics is not the first thing that comes to mind when I look at a semi-truck. Instead, I’m thinking about the big ol’ diesel engine under the hood, ...

Traditional mirrors have been keeping semi truck drivers and those around them on the road safe for decades. It's more or less a solved science, which might be why some engineers have been looking ...