This ripple tank provides a comprehensive demonstration of the general properties of waves. Wave propagation phenomena are projected onto a screen. Teacher’s notes and experiments are provided in a manual. A 12V, 5A, DC power supply is included and all housed in a lightweight aluminium case. Frequency from 30 to 100Hz in 0.01 steps. Kit consists of: Variable Vibrator Ripple Tank Wave Dampers Electronic Stroboscope with Halogen Lamp Projection Mirror Screen Wave Dippers Accessories.