Our newest exhibit is open now! Amazing Arteries is an interactive pneumatic tube exhibit that encourages learning about the human circulatory system. When you place the red foam balls in the entry point, the flow of air pushes the ball through the tubes and out one of the exit points. You can change the path of the ball at the gate points and send the ball to a new location. Signs along the way provide information about the functions carried out by our body’s circulatory system.