Vibrations

1. Sound waves enter the outer ear and travel through a narrow passageway called the ear canal, which leads to the eardrum.


2. The eardrum vibrates from the incoming sound waves and sends these vibrations to three tiny bones in the middle ear. These bones are called the malleus, incus, and stapes.


3. The bones in the middle ear amplify, or increase, the sound

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Chladni's law , named after Ernst Chladni, relates the frequency of modes of vibration for flat circular surfaces with fixed center as a function of the numbers m of diametric (linear) nodes and n of radial (circular) nodes. It is stated as the equation

where C and p are coefficients which depend on the properties of the plate.[1]