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  2. Luminescence dating - Wikipedia

    en.wikipedia.org/wiki/Luminescence_dating

    Luminescence dating. Luminescence dating refers to a group of chronological dating methods of determining how long ago mineral grains were last exposed to sunlight or sufficient heating. It is useful to geologists and archaeologists who want to know when such an event occurred. It uses various methods to stimulate and measure luminescence.

  3. Crystal oscillator - Wikipedia

    en.wikipedia.org/wiki/Crystal_oscillator

    A crystal oscillator is an electronic oscillator circuit that uses a piezoelectric crystal as a frequency-selective element. [1] [2] [3] The oscillator frequency is often used to keep track of time, as in quartz wristwatches, to provide a stable clock signal for digital integrated circuits, and to stabilize frequencies for radio transmitters and receivers.

  4. Counterfeit watch - Wikipedia

    en.wikipedia.org/wiki/Counterfeit_watch

    Counterfeit watch. A counterfeit watch (or replica watch) is an unauthorised copy of an authentic watch. High-end luxury watches such as Rolex, Patek Philippe and Richard Mille are frequently counterfeited and sold on city streets and online. With technological advancements, many non-luxury and inexpensive quartz watches are also commonly ...

  5. Spruce Pine Mining District - Wikipedia

    en.wikipedia.org/wiki/Spruce_Pine_Mining_District

    Spruce Pine Mining District. The Spruce Pine Mining District is a swath of the valley of the North Toe River in the Blue Ridge Mountains of northwestern North Carolina. The area is mined for its mica, kaolin, quartz and feldspar. [1] Spruce Pine district is one of the largest suppliers of high-purity quartz, which is used in the manufacture of ...

  6. Tom Brady to put his watch collection up for sale at Sotheby's

    www.aol.com/news/tom-brady-put-watch-collection...

    The seven-time Super Bowl champion’s collection will be available this December through auction house Sotheby’s as part of “The GOAT Collection: Watches and Treasures from Tom Brady.”. The ...

  7. Quartz clock - Wikipedia

    en.wikipedia.org/wiki/Quartz_clock

    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 ...

  8. Kaiser Steel - Wikipedia

    en.wikipedia.org/wiki/Kaiser_Steel

    This part of Kaiser Steel business was highly profitable, but in June 1979 the 28.3% ownership share was sold to Conzinc Riotinto for $207.5 million, bringing Riotinto's share to 54%. The reason for the sale was speculated by The Iron Age to be due to debt incurred for the latest $233 million modernization program at Fontana. [33]

  9. Cuvette - Wikipedia

    en.wikipedia.org/wiki/Cuvette

    Cuvette. In laboratories, a cuvette (French: cuvette, lit. 'little vessel') is a small tube-like container with straight sides and a circular or square cross-section. It is sealed at one end, and made of a clear, transparent material such as plastic, glass, or fused quartz. Cuvettes are designed to hold samples for spectroscopic measurement ...

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