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Statistical Mechanics - Waves, Heat and Light

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The Helmholtz Resonator- What determines the characteristic frequency when you blow over the top of a bottle? A simple theory, without even appealing to the idea of normal modes was worked out by Helmholtz. The idea is to treat the air in the neck of the bottle as a moving mass and the air in the bulk of the bottle as a spring. To wit:

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https://brainmass.com/physics/statistical-mechanics/statistical-mechanics-waves-heat-and-light-53756

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The Helmholtz Resonator is analyzed. The Frequency when you blow over the top of a bottle is found.

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