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.
form: the choreographic structure or structures that shape a dance work; or a broad term that refers to a specific type of dance (for example, theatre dance, folk dance); or a particular practice, style, or genre of dance.merican postmodern dance: a form of modern dance that emerged in the 1960s and in which choreographers experimented with concepts and forms that challenged existing dance traditions.