I set the car gingerly on the countertop where all of the supplies we were using were located. Finally, the last test to gather data was going to take place. Only one more time would we have to wind up the string and send the vehicle darting down the hall. Everything just needed to last one more time. Once I grabbed the front of the car and lifted it slightly, I began to turn the wheel. Rotation after rotation the fishing pole bent down farther and farther. One more wind. I thought. One more full rotation and that should be enough. While in the midst of turning the wheel the last few inches, there was a snap and the side of my face exploded in a burst of sharp