In this video you will see the waves formed by sound frequency .. Different frequency different pattern and waves in water..
Resonance describes the phenomenon of increased amplitude that occurs when the frequency of a periodically applied force is equal or close to a natural frequency of the system on which it acts.
..Salt was moisture so the experiment went wrong with salt so I preferred water..which gave me the best results 🙂
... when speaker vibration reach to the cardboard it also vibrates at a certain frequency and as there is a vibration the waves start to form on the water or salt...with an amazing pattern and randomness
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