A research team at M.I.T. has developed a new form of photography with potential uses in many aspects of daily living from body imaging to checking fruit ripeness to seeing around corners. In this video, you literally watch light travel through various media at one trillion frames per second.
http://www.ted.com/talks/ramesh_raskar_a_camera_that_takes_one_trillion_frames_per_second.html
http://www.ted.com/talks/ramesh_raskar_a_camera_that_takes_one_trillion_frames_per_second.html