Cosa (chi) è quartz lamp - definizione
TYPE OF VOLCANIC ROCK CONTAINING LARGE PORPHYRITIC CRYSTALS OF QUARTZ
Quartz-Porphyry; Quartz porphyry
Halogen lamp
![Medical halogen penlight to observe [[pupillary light reflex]]](https://commons.wikimedia.org/wiki/Special:FilePath/Halogenlight.JPG?width=200 "Medical halogen penlight to observe [[pupillary light reflex]]")
![Xenon halogen lamp (105 W) for replacement purposes with an [[E27 screw base]]](https://commons.wikimedia.org/wiki/Special:FilePath/Wolfram-Halogenglühlampe.png?width=200 "Xenon halogen lamp (105 W) for replacement purposes with an [[E27 screw base]]")
INCANDESCENT LAMP VARIETY
Halogen Lamp; Halogen light; Tungsten-halogen lamp; Tungsten-halogen light; Tungsten-halogen light bulb; Tungsten-halogen bulb; Halogen bulb; Halogen lamps; Quartz halogen; Quartz halogen lamp; Halogen light bulb; Halogen bulbs; Halogen cycle; Tungsten halogen lamp; Halogen down lighter; Halogen lighting; Tungsten halogen; Tungsten Halogen; Quartz-halogen lamp; R7S
A halogen lamp (also called tungsten halogen, quartz-halogen, and quartz iodine lamp) is an incandescent lamp consisting of a tungsten filament sealed in a compact transparent envelope that is filled with a mixture of an inert gas and a small amount of a halogen, such as iodine or bromine. The combination of the halogen gas and the tungsten filament produces a halogen-cycle chemical reaction, which redeposits evaporated tungsten on the filament, increasing its life and maintaining the clarity of the envelope.
Quartz fiber
![A [[quartz fiber dosimeter]], a device using a quartz fiber.](https://commons.wikimedia.org/wiki/Special:FilePath/Direct-reading dosimeter.jpg?width=200 "A [[quartz fiber dosimeter]], a device using a quartz fiber.")
GLASS FIBER MADE WITH PURE SILICA (FUSED QUARTZ)
Quartz-fiber; Quartz-fibre; Quartz fibre
Quartz fiber is a fiber created from high purity natural quartz crystals. It is made by first softening quartz rods (in an oxyhydrogen flame) and then creating filaments from the rods.
Quartz crisis
![The first Swiss quartz clock, which was made after World War II (left), on display at the [[International Museum of Horology]] in [[La Chaux-de-Fonds]]](https://commons.wikimedia.org/wiki/Special:FilePath/MIH-film27jpg whitebalance.jpg?width=200 "The first Swiss quartz clock, which was made after World War II (left), on display at the [[International Museum of Horology]] in [[La Chaux-de-Fonds]]")
, 1979.jpg?width=200 "Seiko Grand Quartz, produced in 1978")
ECONOMIC UPHEAVALS CAUSED BY THE ADVENT OF QUARTZ WATCHES IN THE 1970S AND EARLY 1980S
Quartz revolution
The quartz crisis was the upheaval in the watchmaking industry caused by the advent of quartz watches in the 1970s and early 1980s, that largely replaced mechanical watches around the world.Smithsonian: The quartz revolution revitalized the U.
Wikipedia
Quartz-porphyry
Quartz-porphyry, in layman's terms, is a type of volcanic (igneous) rock containing large porphyritic crystals of quartz. These rocks are classified as hemi-crystalline acid rocks.
