The Doppler Rocket combines the elements of a toy with an audio Doppler shift to create an educational experience students won’t forget. The Doppler Rocket emits a true, sinusoidal sound waveform at a constant frequency of approximately 620 Hz. The circuit and speaker are housed in skinned foam that protects the unit during normal impacts. The circuit is powered by a 9 V battery. As the Doppler Rocket passes the students, they hear a noticeable shift in frequency. Velocities of 10 m/s can be easily achieved, resulting in a 20 Hz shift in frequency. Features Rugged: Skinned foam protects the unit during classroom use. Multi-Function Handles: The rope of the Doppler Rocket can be wound around the handles for easy storage. Handle Cushions: Cushions prevent the Doppler Rocket from hitting the students’ hands as they propel the rocket across the room. Low Power Consumption: One 9V battery provides several years of typical use. Applications Fly It Horizontally Swing It Overhead Play Catch How It Works The Doppler Rocket emits a true, sinusoidal sound waveform at a constant frequency of approximately 620 Hz. The circuit and speaker are housed in skinned foam that protect the unit during normal impacts. The circuit is powered by a 9V battery. What's Included 1x Doppler Rocket 1x Rope (30 m) 4x Handles 4x Handle Cushions 1x Battery (9 V) Instructions
