คุณสมบัติและประโยชน์
- Water surface ripples around the rim due to vibrations caused by rubbing the handles.
- Water drops shoot up, becoming continuous streams like tiny fountain jets.
- Water droplets and jets grow and diminish with each rub of the handle.
- Believed to generate precise frequencies for standing waves.
- Use to demonstrate behavior and interactions of waves.
- Spouts of water rise from the standing waves.
