Some researchers study carbon nanotubes -- and then there are these guys. Thomas Wagner and his students from Kaiserslautern University in Germany have used an Oculus Rift headset to transform a real rollercoaster into an virtual experience. That's been done before on the sly, but this time it was legit: the group teamed up with rollercoaster builder Mack Rides, and developed several apps for an Oculus headset and built-in laptops. The VR "rides" were synced to the motion of two different coasters by tracking their wheels and using human monitors. The apps sport various themes like a wacky flying horse chariot ride, a submarine tour and a space shooter complete with a gamepad (see the video, below). It's still just a (really fun) experiment, but the coaster maker and researchers are keen to work out the bugs and commercialize it at some point. In case you were wondering, the FAQ shows that the headset won't fall off, the Oculus sensors work in extreme g-forces, and no, the VR won't make you barf -- as long as it's in sync with the ride.