Brit milah. The brit milah (Hebrew: ×Ö°Ö¼×¨Ö´××ª ×Ö´××Ö¸×â, pronounced; Ashkenazi pronunciation:, covenant of circumcision; Yiddish pronunciation: bris ) is a Jewish religious male circumcision ceremony performed by a mohel (circumciser) on the eighth day of a male infant's life.
An example of a 1930 Soundex Card. Photo courtesy of the National Archives. The Soundex is a coded surname index (using the first letter of the last name and three digits) based on the way a name sounds rather than the way it's spelled. Surnames that sound the same but are spelled differently - such as Smith and Smyth - have the same code and are filed together.
Sound is a mechanical wave that results from the back and forth vibration of the particles of the medium through which the sound wave is moving. If a sound wave is moving from left to right through air, then particles of air will be displaced both rightward and leftward as the energy of the sound wave passes through it. The motion of the particles is parallel (and anti-parallel) to the direction of the energy transport. This is what characterizes sound waves in air as longitudinal waves.