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An illustration of some of the optical devices available for laboratory work in England in 1858. An optical instrument is a device that processes light waves (or photons), either to enhance an image for viewing or to analyze and determine their characteristic properties.
The bonang is an Indonesian musical instrument used in the Javanese gamelan. [1] It is a collection of small gongs (sometimes called "kettles" or "pots") placed horizontally onto strings in a wooden frame (rancak), either one or two rows wide.
Phase shift through a beam splitter with a dielectric coating. Beam splitters are sometimes used to recombine beams of light, as in a Mach–Zehnder interferometer.In this case there are two incoming beams, and potentially two outgoing beams.
The reyong (also spelled reong) is a musical instrument used in Balinese gamelan.It consists of a long row of metal gongs suspended on a frame. In gamelan gong kebyar, it is played by four players at once, each with two mallets.
There are several tolerance methods: . The traditional "minimum weight" system where weights below a specified weight are rejected. Normally the minimum weight is the weight that is printed on the pack or a weight level that exceeds that to allow for weight losses after production such as evaporation of commodities that have a moisture content.
The slenthem (also slentem or gender panembung) is an Indonesian metallophone which makes up part of a Javanese gamelan orchestra. The slenthem is part of the gendér family. [1]
The Javanese siter and celempung are plucked string instruments used in Javanese gamelan.They are related to the kacapi used in Sundanese gamelan.. The siter and celempung each have between 11 and 13 pairs of strings, strung on each side, between a box resonator.