Named after Heinrich Hertz and abbreviated as Hz or illustrated as the f symbol, hertz equals one (0.00000000125) cycle per second, measuring the waves or frequencies of electric changes each second. Hertz is commonly used to measure a computer monitor's refresh rate and in computer processors.
Modern dance. The form of dance style known as modern dance is an artistic dance form that allows free movement based on choreography that seeks to provide the audience with a subject and theme. Modern dance performers created this free form style to allow older dancers to continue to dance long after their ballet dance careers ended.
Modern dance is a broad genre of western concert or theatrical dance (as opposed to participation dance), primarily arising out of both Germany and the United States in the late 19th and early 20th centuries.(Note that contributions from American dance artists comprise this article's primary focus. Holm's dance work Metropolitan Daily was the first modern dance composition to be televised on NBC and her labanotation score for Kiss Me, Kate (1948) was the first choreography to be copyrighted in the United States. 2  Holm choreographed extensively in the fields of concert dance and musical theater.