Once the sound waves travel into the ear canal, they vibrate the tympanic membrane, commonly called the eardrum. The eardrum is a thin, cone-shaped piece of skin, about 10 millimeters (0.4 inches) wide.It is positioned between the ear canal and the middle ear.The middle ear is connected to the throat via the eustachian tube. Since air from the atmosphere flows in from your outer ear as well as your mouth, the air pressure on both sides of the eardrum remains equal.his pulls the eardrum and the connected bones in two different directions, so the drum becomes more rigid. When this happens, the ear does not pick up as much noise at the low end of the audible spectrum, so the loud noise is dampened.
Recommendation letters are usually specifically requested to be written about someone, and are therefore addressed to a particular requester (such as a new employer, university admissions officer, etc.), although they may also be issued to the person being recommended without specifying an addressee.
For situations where the letter has a disproportionate impact (e.g., for faculty applications), or if you are new to recommendation-writing, treat your letter like any other important piece of writing: get feedback from others. letter that praises a person without being concrete comes across as a tepid recommendation. Rankings in class are another example of a helpful specific. Differentiate. Say how this person is unlike other people: his or her specific strengths. Compare. When writing to someone who shares context with you, name names.