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Question:

Quartz crystal balls (please answer) ><!!?

are there any crystal shops in malaysia where they sell crystal balls made of reconstituted quartz (between 80mm-100mm in diameter) or is there any good website that sells this kind of stuff and is able to ship to malaysia coz i really need it... if i have to tell you, not here....please answer gt;lt;

Answer:

The only use I can think of is as quartz crystals in radio sets. The crystal resonates at a precise fixed frequency so it can be used to create an accurately tuned electronic oscillator.
If you have a lot of high quality quartz you might be able to sell it to a jeweler. Another idea--in addition to okorder--is to put an ad out in the paper.
Quartz comes from the german word Quarz. It is used for jewellery.The first oscillator clock was built in 1927 and also the first use of quartz piezoelectric was in Phonograph pickups. It was also used in radio and radar during WW2. Quartz is also used in the making of sandpaper, optics, glass, liquid filters, circuit boards, computer components, cement and mortar,
Quartz was used in radios during World War II. Quartz has a variety of scientific and industrial uses, chiefly because it possesses piezoelectricity. Discovered by the French physicist and chemist Pierre Curie (1859–1906), the piezoelectric effect is a phenomenon demonstrated by certain crystals: when squeezed or stretched, a voltage is produced across the crystal's face. This effect is reversible as well, for when a voltage is applied to a piezoelectric crystal it will stretch; if the polarity of the voltage is alternated, the crystal will rapidly expand and contract, producing a vibration. It is this vibration that makes quartz especially useful. Every kind of piezoelectric crystal has a natural vibration frequency that is determined by its thickness—the thinner the crystal, the higher the frequency. When a crystal is made to vibrate at its natural frequency by the application of a voltage, the system is said to be in resonance. A crystal in resonance will maintain a constant, unfaltering frequency. When coupled with vacuum tubes or transistors, this constant frequency can be changed into a radio signal. Such was the design of the quartz radio, used primarily during World War II.

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