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The Sonos Arc, for example, accomplishes this via a pair of up-firing speakers, the idea being to bounce audio off the ceiling in addition to pointing it at your face. It's a nice feature to have ...
The light of the candle flame was often intensified by a reflecting backplate. Using brackets, the candle or gas flame would be kept at safe distance from the wall and ceiling. [3] Modern electric light fixture sconces are often used in hallways or corridors to provide both lighting and a point of interest in a long passage. Sconce height in a ...
Sonos CEO Patrick Spence apologized for the update, referring to "issues", in what has been called "hilarious tone of wry British understatement". [116] As of August 2024, the new app has a 1.3 point review average on Google Play. [117] In January 2025, Sonos announced the resignation of its CEO Patrick Spence over the app update debacle. [118]
An arc lamp or arc light is a lamp that produces light by an electric arc (also called a voltaic arc). The carbon arc light, which consists of an arc between carbon electrodes in air, invented by Humphry Davy in the first decade of the 1800s, was the first practical electric light .
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Closeup of pendant. The Arco lamp is a modern floor lamp designed by brothers Pier Giacomo and Achille Castiglioni for Flos [] in 1962. [1] The lamp is characterized by a suspended spun aluminum pendant attached to an upright block of Carrara marble via a cantilevered arching arm made of stainless steel.
The heat generated by the arc and electrodes then ionizes the mercury and metal halides into a plasma, which produces an increasingly brighter white light as the temperature and pressure increases to operating conditions. The arc-tube operates at anywhere from 5–50 atm or more [8] (70–700 psi or 500–5000 kPa) and 1000–3000 °C. [9]
Arc flash is distinctly different from the arc blast, which is the supersonic shockwave produced when the uncontrolled arc vaporizes the metal conductors. Both are part of the same arc fault, and are often referred to as simply an arc flash, but from a safety standpoint they are often treated separately.