A crystal is a solid substance in which the atoms, molecules, or ions are arranged in an orderly repeating pattern extending in all three spatial dimensions. Examples include… table salt (sodium chloride), quartz, and diamond. (MORE)
It depends what type of crystal it is, if it is Copper, it has the element Copper in it, Just look up the Composition of the crystal, but just because its name is named after …a element doesnt mean it doesnt have That element in it. (MORE)
nothing really, but i can tell you how they form. Answer: Crystals usually form from molten rock as the molten rock gradually cools. If the molten rock cools very rapid…ly, then either small crystals form or no crystals form. An example of this is when lava is ejected from a volcano. If molten rock cools slowly, then large crystals can form. This happens usually when the molten material is very deep in the Earth. Examples of these types of crystals are diamonds, emeralds, rubies, etc. Crystals can also form when water evaporates. For example, salt crystals (sodium chloride) form when salt water evaporates. The smooth faces of crystals are caused by a regular internal arrangement of atoms. (MORE)
The single most important function required in order to strip the voice or music off of an AM radio signal is: .
- At some point in the receiver, push the current through …some device that conducts current easier in one direction and harder in the other direction. .
A device that does this may be called a rectifier, a diode, a mixer, a non-linear device, or other names. It can be done with a transistor, a vacuum tube, or a stack of layers of different semiconductors or chemicals. In the simplest, cheapest device that can possibly receive AM radio, it happens at the place where the sharp point of a wire rests on the surface of a crystal of germanium or rochelle salt. (MORE)
Crystalate is an old brand name for early plastics, and the company that owned that trademark (and derived ones like Super Crystalate). Crystalate Manufacturing Co. Ltd. w…as founded in 1901 in the UK, and made billiard balls, phonograph records and other plastic items, using Crystalate, a plastic formulation patented by American inventor George Henry Burt. The company later focused more on the music market, merged with Sound Recording Co. Ltd. and changed its name to Crystalate Gramophone Record Manufacturing Co. Ltd. In 1937, most of it was bought out by Decca Records, but it continued making non-recording products as Crystalate Ltd. Split-offs of it survived until at least the mid-1980s (when my source was published) in the electronic components industry. (Source: Encyclopedia of Recorded Sound (2nd Ed.), Vol. 1: A-L, entry "Crystalate Gramophone Record Manufacturing Co., Ltd.", in turn citing Andrews 1983/1984.) Crystalate as a plastic material is, like Celluloid and Bakelite, commonly encountered by collectors of vintage and antique goods, as many products were made using the substance. (MORE)