When a glass is rubbed with dry fingers, nothing happens due to the high friction. However, when done with wet fingers, the particles of the glass begin to vibrate, causing the glass to resonante and generate a sound. These vibrations can be seen in the water inside the glass as well.
(3D40.50) Singing Glass
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When a glass is rubbed with dry fingers, nothing happens due to the high friction. However, when done with wet fingers, the particles of the glass begin to vibrate, causing the glass to resonante and generate a sound. These vibrations can be seen in the water inside the glass as well.
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