Wave Machine, Powell’S

For Demonstrating The Movement Of Progressive Transverse Waves. Comprises A Number Of Circular Discs Mounted Equidistant From Each Others On A Horizontal Shaft In Gradually Varying Degrees Of Eccentricity, With Each Disc Having A Vertical Rod Of Same Length Supported On Top And Sliding Up And Down Into A Pair Of Guides. Complete Assembly Mounted On A Metal Base. (Wave Machine, Powell’S)