Doppler Ball
Product Code : EL-PLE-11893
Description:
A plastic ball with a PP3 battery powered tone generator and speaker inside.
The ball can be safely whirled round in a large horizontal circle to demonstrate the Doppler effect.
Good output volume and variable pitch provide all that is required for a dramatic demonstration of the Doppler shift associated with a moving source.
.jpg)
305mm (1).jpg)
.png)