A compact, handson wave simulator that clearly demonstrates real transverse and longitudinal wave motion for classroom and laboratory use. Key benefits Teaches core wave concepts by showing both transverse and longitudinal motion in one device. Visual, doublesided display makes it easy to compare wave formation and propagation from front and back. Manual operation requires no power, so demonstrations are simple and portable. Precision mechanical design produces smooth, synchronized motion for reliable, repeatable demonstrations. Supports handson learning by converting a single rotary input into visible linear wave motion. Features Transverse and longitudinal wave simulation: Eccentric rotation drives rods to move in vertical and horizontal directions, clearly showing real transverse and longitudinal wave motion. Double side wave display: Both front and back panels demonstrate wave formation and propagation, with a clear quarter wavelength visual reference for easy measurement and comparison. Precision eccentric shaft system: A unified rotating shaft with multiple eccentric wheels transfers continuous motion across the array of rods to create smooth, synchronized wave patterns. Manual hand crank operation: Simple counterclockwise hand rotation drives all vibrators into uniform motion, supporting handson interactive learning and demonstrating the conversion between rotational input and wave motion. Practical applications Physics classroom demonstrations to illustrate wavelength, amplitude, phase, and propagation in real time. Laboratory exercises for smallgroup experiments and measurement of quarter wavelength relationships. Museum or science center exhibits where visitors can operate the crank to observe wave behavior directly. Compatibility and performance Designed for manual tabletop use in educational settings and exhibits. Mechanical precision ensures consistent, synchronized wave patterns across the display. Easy to operate and suitable for repeated demonstrations and interactive learning sessions. This simulator provides a clear, reliable way to visualize wave phenomena and the mechanical conversion of rotary motion into transverse and longitudinal waves.