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  2. Triboluminescence - Wikipedia

    en.wikipedia.org/wiki/Triboluminescence

    Like in triboluminescence, if the charge separation results in a large enough electric potential, a discharge across the gap and through the bath gas between the interfaces can occur. The potential at which this occurs depends upon the dielectric properties of the bath gas.

  3. Crystal oscillator frequencies - Wikipedia

    en.wikipedia.org/wiki/Crystal_oscillator_frequencies

    Crystal oscillators can be manufactured for oscillation over a wide range of frequencies, from a few kilohertz up to several hundred megahertz.Many applications call for a crystal oscillator frequency conveniently related to some other desired frequency, so hundreds of standard crystal frequencies are made in large quantities and stocked by electronics distributors.

  4. 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.

  5. Optically stimulated luminescence thermochronometry - Wikipedia

    en.wikipedia.org/wiki/Optically_stimulated...

    Optically stimulated luminescence (OSL) thermochronometry is a dating method used to determine the time since quartz [1] [2] and/or feldspar [3] [4] began to store charge as it cools through the effective closure temperature. [1] The closure temperature for quartz and Na-rich K-feldspar is 30-35 °C [1] [5] and 25 °C [4] respectively.

  6. Piezoelectricity - Wikipedia

    en.wikipedia.org/wiki/Piezoelectricity

    The change in P appears as a variation of surface charge density upon the crystal faces, i.e. as a variation of the electric field extending between the faces caused by a change in dipole density in the bulk. For example, a 1 cm 3 cube of quartz with 2 kN (500 lbf) of correctly applied force can produce a voltage of 12500 V. [20]

  7. It's Settled! Clear Quartz is the Perfect Crystal to ... - AOL

    www.aol.com/settled-clear-quartz-perfect-crystal...

    If you're interested in crystals, the clear quartz is a good stone to have. With energetic benefits, this stone can help purify, amplify, and it's nice for all decor styles. It's Settled!

  8. Fused quartz - Wikipedia

    en.wikipedia.org/wiki/Fused_quartz

    Fused quartz, fused silica or quartz glass is a glass consisting of almost pure silica (silicon dioxide, SiO 2) in amorphous (non-crystalline) form.

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

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