American conservatism is a broad system of political beliefs in the United States that is characterized by respect for American traditions, support for Judeo-Christian values, economic liberalism, anti-communism, and a defense of Western culture.
The ear consists of three basic parts-the outer ear, the middle ear, and the inner ear. Each part of the ear serves a specific purpose in the task of detecting and interpreting sound. The outer ear serves to collect and channel sound to the middle ear. The middle ear serves to transform the energy of a sound wave into the internal vibrations of the bone structure of the middle ear and ultimately transform these vibrations into a compressional wave in the inner ear.
7.1 Structure of the Ear and Pitch Perception. Parts of the ear: Ear lobe - concentrates high frequencies, gives sense of direction. Animals control ear lobes. Ear canal - open-closed resonator, enhances frequencies around its fundamental resonance, which is in the range of 2000 â 5000 Hz. Resonant frequency used to determine length of canal for fitting hearing aids. Ear drum - converts sounds waves to mechanical vibrations, much like a microphone. Inner ear bones - transfers mechanical energy to oval window on cochlea. Protects against loud noises. Cochlea - fluid filled canal with Basilar membrane running along its length.