Probably the fastest treamill ever
Haas Automation and Jacobs Engineering has built a treadmill for cars, why? Because it's meant to go inside wind tunnels. Sounds extreme right? But according to them totally worth it. This is because for aircraft, which wind tunnels were designed for, don't have any surfaces around them to mess with the experiment. However a stationary car in a wind tunnel does. And this causes some errors in engineer's calculations. So how to solve the problem? Built a treadmill capable of supporting a car and that can spin fast enough to have a car moving (stationary) at over 180mph! This way their is a road surface that is moving and the tires are also spinning, now engineers can more accurately measure wind that moves around a vehicle's underside, which is VERY important especially to race cars, which this whole bonanza is meant for.