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Metronome. A metronome (from Greek μέτρον (métron) 'measure' and νομός (nomós) 'law') is a device that produces an audible click or other sound at a uniform interval that can be set by the user, typically in beats per minute (BPM). Metronomes may also include synchronized visual motion, such as a swinging pendulum or a blinking light.
Greenwich Time Signal. Graph of the six pips. The Greenwich Time Signal (GTS), popularly known as the pips, is a series of six short tones (or "pips") broadcast at one-second intervals by many BBC Radio stations to mark the precise start of each hour. The pips were introduced in 1924, generated by the Royal Observatory, Greenwich, and from 1990 ...
4′33″. 4′33″[a] is a modernist composition [b] by American experimental composer John Cage. It was composed in 1952 for any instrument or combination of instruments; the score instructs performers not to play their instruments throughout the three movements. It is divided into three movements, [c] lasting 30 seconds, two minutes and 23 ...
No. 12 Southern California at No. 17 Michigan. Time/TV: Saturday, 3:30 p.m. ET, CBS. Why watch: The Trojans fittingly begin their inaugural journey through the Big Ten in the Big House, where they ...
Tempo. In musical terminology, tempo (Italian for 'time'; plural 'tempos', or tempi from the Italian plural), also known as beats per minute, is the speed or pace of a given composition. In classical music, tempo is typically indicated with an instruction at the start of a piece (often using conventional Italian terms) and is usually measured ...
An egg timer or kitchen timer is a device whose primary function is to assist in timing during cooking; the name comes from the first timers initially being used for the timing of cooking eggs. Early designs simply counted down for a specific period of time. Some modern designs can time more accurately by depending on water temperature rather ...
15-Minute Hamlet is a 1976 comedic abridgement of William Shakespeare 's Hamlet, written by Tom Stoppard. The play, an excerpt from Dogg's Hamlet, condenses the original Hamlet, including all the best-known scenes, into approximately 13 minutes of on-stage action. This is followed by another even more drastically reduced performance of the play ...
e. The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium. More simply, the speed of sound is how fast vibrations travel. At 20 °C (68 °F), the speed of sound in air is about 343 m/s (1,125 ft/s; 1,235 km/h; 767 mph; 667 kn), or 1 km in 2.91 s or one mile in 4.69 s.