Make some coffee with powder, stir it. then keep tapping the mug. You'll hear a freqenecy rising in pitch. But how does the hot chocolate effect work? The weird pitch frequency coming for your coffee. The speed of sound changes when water and a powder mixes. Air is created and slowly fly out of the system. But air changes the bulk modulus and that changes the speed. (Animated physics video)
The freqency depends on the speed of propagation in a fluid.
Animated and explained. An extremely cool physical phenomena.
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Негізгі бет Physics of The Hot Chocolate Effect
Пікірлер: 39