Pyro Board: 2D Rubens' Tube! Rubens' Tube is an awesome demo and here we take it to the next level with a two-dimensional 'Pyro Board'. This shows unique standing wave patters of sound in the box.
you may also like NASA: Experiments with Water Monkey Waiters In Restaurant Amazing Finger Painter Amazing Transforming Furniture Russian Firefighters Play with Water Moonroof Trick Shot - Basketball Pyro Board: 2D Rubens' Tube! Workout Girls Ski Ballet - 1988 Olympic Games