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silent; in three movements lasting a total of four minutes and 33 seconds, for any instrument or combination of instruments. 4'33" No. 2 (1962) by John Cage; Also known as 0'00"; the performer determines the extent to which the piece is silent, mostly silent, noisy, or raucous.
As suggested by the title, the composition lasts four minutes and 33 seconds. It is marked by silence except for ambient sound, which is intended to contribute to the performance. 4′33″ was conceived around 1947–48, while Cage was working on the piano cycle Sonatas and Interludes.
A metronome (from Ancient Greek μÎτρον (métron) 'measure' and νÏŒμος (nómos) '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.
There is a type of automatic timer manufactured by Kaiser, Philips, and others that by means of a photoelectric sensor (like the one in the photo or mounted inside the easel), is capable of regulating the exposure time according to the light projected by the enlarger, through the negative, on the photographic paper, magnitude inversely ...
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As of 2019, an autonomous light-powered high-accuracy quartz watch movement became commercially available which is claimed to be accurate to ± 1 second per year. [ 19 ] [ 20 ] Key elements to obtain the high claimed accuracy are applying an unusually shaped (for a watch) ( AT-cut ) quartz crystal operated at 2 23 or 8 388 608 Hz frequency ...
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3579 S High St, Columbus, OH · Directions · (614) 409-0683