Abstract: A pinball machine includes sensors that can detect body and hand gestures and react based thereupon. These reactions can be graphical images and/or animations that are shown on a display, changing physical game play by affecting the ball's behavior or playfield, or influencing player behavior by changing rules and modes within the game. The sensors are proximal to an upright display of the machine, and/or also proximal to the front of the machine on a generally horizontal play surface thereof, and/or in front of the machine, and/or on the sides of the machine, near the physical buttons called flipper buttons. The images and gameplay appear to interact with the gestures of, or sound emanated from, the player, thereby enhancing the gaming experience. The sensors may record the player performing the gesture, and create a mask to be used within the game in the form of video animations and/or composites.

Abstract: System and methods of detecting and measuring periodontal disease comprising filling a periodontal pocket with a fluid capable of propagating sound waves, transmitting a sound wave into the periodontal pocket, sensing the return sound wave from the periodontal pocket, and determining the depth of the pocket by measuring the time it takes the at least one transmitted sound wave to traverse the periodontal pocket and return. A peak discrimination analysis algorithm is also provided.