One of the highlights of the 2012 Olympics will undoubtedly be diving. There’s been some stiff competition this year, especially in the preliminary rounds, and all the athletes have been killing themselves trying to look as graceful as possible while tumbling through the air. These competitors may look like elegant swans from a distance, but when the camera gets right up close for those slow-motion instant replays, not one of them is capable of hiding the pain in their faces.