Snakey


Easily create clear standing wave patterns.


(b)


Sympathetic Resonance Box Set


Doppler Rocket


A Experience the frequency shift of sound waves


A Easily generate high velocity motion A Rugged construction


O-rings Remove easily to change battery


Skinned Foam Body Protects buzzer during impact


(a)


This extra-long metal spring is ideal to study mechanical waves. The Snakey has an unstretched length of 2 meters. Pull the convenient end loops more than 10 meters apart to demonstrate transverse, longitudinal, and standing waves.


Snakey SE-7331


Resonance boxes are great instruments for amplifying sound from a tuning fork. These boxes are constructed from hardwood and feature an A4 tuning fork mounted directly to the box.


The set contains a hardwood resonance box with a 256 Hz A4 tuning fork (a) and a hardwood resonance box with an adjustable tuning fork (b)


Rope Tube Pass rope through to fly horizontally


Flying Horizontally — A set of two ropes can be passed through the center of the unit. This allows students to use the included handles to propel the Doppler Rocket across the room at high velocities. The unit is guided by the ropes. Students hear the change in pitch as the Doppler Rocket flies past them.


Sympathetic Resonance Box Set SE-7345


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.


Doppler Rocket WA-9826


Includes Doppler Rocket, rope (30 meters), handles (4), handle cushions (4), and battery (9 Volt).


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