Waves, resistance, suction, whirlwind circles and paths, circular turbulence and funnel turbulence occur in similar forms in water as well as in air. With smoke cones, table tennis balls and a whirlwind mobile, an elastic band driven boat, channeled air from a straw and many other objects you can discover shortlived turbulence. In the richly illustrated instructions these fascinating phenomenon are explained opposite each other for air and water.
