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Verger. Verger of Portsmouth Cathedral (left) leads the bishop in procession. A verger (or virger, so called after the staff of the office, or wandsman in British English, though archaic) [1] is a person, usually a layperson, who assists in the ordering of religious services, particularly in Anglican churches.
Quartz clocks and quartz watches are timepieces that use an electronic oscillator regulated by a quartz crystal to keep time. This crystal oscillator creates a signal with very precise frequency, so that quartz clocks and watches are at least an order of magnitude more accurate than mechanical clocks. Generally, some form of digital logic ...
Smoky quartz is a brownish grey, translucent variety of quartz that ranges in clarity from almost complete transparency to an almost-opaque brownish-gray or black crystals. [6] The color of smoky quartz is produced when natural radiation, emitted from the surrounding rock, activates color centers around aluminum impurities within the ...
The importance of the escapement in the history of technology is that it was the key invention that made the all-mechanical clock possible. [1] [2] The invention of the first all-mechanical escapement, the verge escapement, in 13th-century Europe initiated a change in timekeeping methods from continuous processes, such as the flow of water in water clocks, to repetitive oscillatory processes ...
Quartz. Quartz is a hard, crystalline mineral composed of silica (silicon dioxide). The atoms are linked in a continuous framework of SiO 4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO 2. Quartz is, therefore, classified structurally as a framework silicate mineral ...
Factory service manual. Factory service manuals (FSM) are the manuals provided by manufacturers which cover the servicing, maintenance, and repair of their products. They are not designed for the general public, however they are created by manufacturers for use at their OEM dealerships. Manufacturers have a team of technical engineers, writers ...
A Moldovan passport. Visa requirements for Moldovan citizens are administrative entry restrictions imposed on citizens of Moldova by the authorities of other states.. As of 2024, Moldovan citizens had visa-free or visa on arrival access to 122 countries and territories, ranking the Moldovan passport 44th in the world according to the Henley Passport Index.
Preventive maintenance or preventative [16] maintenance (PM) has the following meanings: The care and servicing by personnel for the purpose of maintaining equipment in satisfactory operating condition by providing for systematic inspection, detection , and correction of incipient failures either before they occur or before they develop into ...