Every rub of the handle changes the frequency of the waves in the bowl. This seemingly simple bowl takes just the right touch to turn into a fun and engaging demonstration of the behavior of waves and their interactions. The Resonance bowl, also known as the Chinese Spouting Bowl, dates back to the Han Dynasty (202 BC - AD 9) making this an ancient, but still highly effective, way to discuss and demonstrate standing waves. Resonance bowls, the original standing wave demo! Diffraction, Polarization & Interference.
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