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Optics is the branch of physics that studies the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it. [1] Optics usually describes the behaviour of visible, ultraviolet, and infrared light. Light is a type of electromagnetic radiation, and other forms of ...
Loincloth. Sketch of a loincloth. A loincloth is a one-piece garment, either wrapped around itself or kept in place by a belt. It covers the genitals and sometimes the buttocks. Loincloths which are held up by belts or strings are specifically known as breechcloth or breechclout. [1] [2] Often, the flaps hang down in front and back.
Fiber-optic communication is a method of transmitting information from one place to another by sending pulses of infrared or visible light through an optical fiber. [1] [2] The light is a form of carrier wave that is modulated to carry information. [3] Fiber is preferred over electrical cabling when high bandwidth, long distance, or immunity to ...
Optomechanics is the manufacture and maintenance of optical parts and devices. This includes the design and manufacture of hardware used to hold and align elements in optical systems, such as: [1] Optomechanics also covers the methods used to design and package compact and rugged optical trains, and the manufacture and maintenance of fiber ...
Beta cloth is a type of fireproof PTFE impregnated silica fiber cloth used in the manufacture of Apollo/Skylab A7L space suits, the Apollo Thermal Micrometeoroid Garment, the McDivitt Purse, [1] and in other specialized applications. Beta cloth consists of fine woven silica fiber, similar to glass fiber. The resulting fabric does not burn, and ...
The word "broadcloth" was originally used just as an antonym to "narrow cloth", but later came to mean a particular type of cloth. The 1909 Webster's dictionary (as reprinted in 1913) defines broadcloth as "A fine smooth-faced woolen cloth for men's garments, usually of double width (i.e., a yard and a half [140 cm]); — so called in distinction from woolens three quarters of a yard wide.
Retrieved December 20, 2016. a commercial unit of length or area used to measure finished cloth. Generally speaking, one bolt represents a strip of cloth 100 yards (91.44 meters) long, but the width varies according to the fabric. Cotton bolts are traditionally 42 inches (1.067 meters) wide and wool bolts are usually 60 inches (1.524 meters) wide.
CN− + −OCl → OCN− + Cl−. Sodium hypochlorite is commonly used as a biocide in industrial applications to control slime and bacteria formation in water systems used at power plants, pulp and paper mills, etc., in solutions typically of 10–15% by weight.