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Rhinestones
A rhinestone, paste or diamanté ( , ) is a diamond simulant originally made from rock crystal but since the 19th century from Lead glass, crystal glass or polymers such as Polymethyl methacrylate, acrylic. Origins Originally, rhinestones were rock crystals gathered from the river Rhine, hence the name, although some were also found in areas like the Alps (the source of the Rhine). Today the name "rhinestone" applies only to varieties of lead glass known as crystal glass. The availability of such products increased greatly in the 18th century when the Alsace, Alsatian jeweller Georg Friedrich Strass (1701–1773) developed imitation diamonds by coating the lower side of lead glass with metal powder. Many European languages use the word ''strass'' (or equivalent) to refer to rhinestones. As opposed to the classic rhinestones, which had a metal-powder coating on the bottom side only, several companies have opted to mass-produce iridescent lead glass by reducing the metal-co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diamond Simulant
A diamond simulant, diamond imitation or imitation diamond is an object or material with gemology, gemological characteristics similar to those of a diamond. Simulants are distinct from synthetic diamonds, which are actual diamonds exhibiting the same material properties of diamond, material properties as natural diamonds. Diamond enhancement, Enhanced diamonds are also excluded from this definition. A diamond simulant may be artificial, natural, or in some cases a combination thereof. While their material properties depart markedly from those of diamond, simulants have certain desired characteristics—such as dispersion (optics), dispersion and hardness—which lend themselves to imitation. Trained gemologists with appropriate equipment are able to distinguish natural and synthetic diamonds from all diamond simulants, primarily by visual inspection. The most common diamond simulants are high-Flint glass, leaded glass (i.e., rhinestones) and cubic zirconia (CZ), both artificial ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nudie Cohn
Nuta Kotlyarenko (; December 15, 1902 – May 9, 1984), known professionally as Nudie Cohn, was a Ukrainian-American tailor who designed decorative rhinestone-covered suits, known popularly as "Nudie Suits", and other elaborate outfits for some of the most famous celebrities of his era. He also became famous for his outrageous customized automobiles. Early life Kotlyarenko was born in Kiev on December 15, 1902, to a Jewish family. To escape the pogroms of Czarist Russia, his parents sent him at age 11, with his brother Julius, to America. For a time he criss-crossed the country, working as a shoeshine boy and later a boxer. He later claimed associating with gangster Pretty Boy Floyd. While living in a boardinghouse in Mankato, Minnesota, he met Helen "Bobbie" Kruger, and married her in 1934. In the midst of the Great Depression the newlyweds moved to New York City and opened their first store, "Nudie's for the Ladies", specializing in custom-made undergarments for showgirls. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swarovski
Swarovski (, ) is an Austrian producer of glass based in Wattens, Tyrol. It was founded in 1895 by Daniel Swarovski. The company is split into three major industry areas: the Swarovski Crystal Business, which primarily produces crystal glass, jewelry, rhinestone, watches and accessories; Swarovski Optik, which produces optical instruments such as telescopes, telescopic sights for rifles, and binoculars; and Tyrolit, a manufacturer of grinding, sawing, drilling, and dressing tools, as well as a supplier of tools and machines. Today, the Swarovski Crystal Business is one of the highest-grossing business units within Swarovski, with a global reach of approximately 3,000 stores in roughly 170 countries, more than 29,000 employees, and a revenue of about 2.7 billion euros (in 2018). Swarovski is now run by the fifth generation of family members. It has been announced, however, that for the first time in the company's key history, senior management positions will come to be fil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vapor Deposition
Vacuum deposition is a group of processes used to deposit layers of material atom-by-atom or molecule-by-molecule on a solid surface. These processes operate at pressures well below atmospheric pressure (i.e., vacuum). The deposited layers can range from a thickness of one atom up to millimeters, forming freestanding structures. Multiple layers of different materials can be used, for example to form optical coatings. The process can be qualified based on the vapor source; physical vapor deposition uses a liquid or solid source and chemical vapor deposition uses a chemical vapor. Description The vacuum environment may serve one or more purposes: * reducing the particle density so that the mean free path for collision is long * reducing the particle density of undesirable atoms and molecules (contaminants) * providing a low pressure plasma environment * providing a means for controlling gas and vapor composition * providing a means for mass flow control into the processing chambe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Matador
A bullfighter or matador () is a performer in the activity of bullfighting. ''Torero'' () or ''toureiro'' (), both from Latin ''taurarius'', are the Spanish and Portuguese words for bullfighter, and describe all the performers in the activity of bullfighting as practised in Spain, Portugal, Mexico, Peru, France, Colombia, Ecuador, Venezuela and other countries influenced by Portuguese and Spanish culture. The main performer and leader of the entourage in a bullfight, and who finally kills the bull, is addressed as ''maestro'' (master), or with the formal title ''matador de toros'' (killer of bulls). The other bullfighters in the entourage are called ''subalternos'' and their suits are embroidered in silver as opposed to the matador's gold. They include the '' picadores'', '' rejoneadores'', and ''banderilleros''. Present since the sport's earliest history, the number of women in bullfighting has steadily increased since the late-19 century, both on foot and on horseback ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Preciosa (corporation)
Preciosa is the brand name for a range of cut lead crystal glass and related products produced by Preciosa a.s. of Jablonec nad Nisou, Czech Republic. Brand name and logo The Preciosa brand name was first registered in Bohemia in 1915. Products Preciosa manufactures a range of colored glass and leadless crystalline glass. Preciosa crystals contain approximately 30% lead to maximize refraction. Since 2013, however, Preciosa has also produced a lead-free crystal, known as the Crystal Faerie After Hours. History Pre-Cold War The history of glassmaking in the Jablonec region has been documented since 1548, when the Wander family founded the first glassworks in Mšeno. Afterwards, settlers from the Jizera Mountains began passing down the craft of glassmaking from generation to generation. In 1680, Johann Kaspar Kittel created the first necklaces made of Bohemian glass beads in Jiřetín pod Jedlovou. After refining the beads, Kittel sells them all over the Bohemian and Saxon lan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Czech Republic
The Czech Republic, also known as Czechia, and historically known as Bohemia, is a landlocked country in Central Europe. The country is bordered by Austria to the south, Germany to the west, Poland to the northeast, and Slovakia to the southeast. The Czech Republic has a hilly landscape that covers an area of with a mostly temperate Humid continental climate, continental and oceanic climate. The capital and largest city is Prague; other major cities and urban areas include Brno, Ostrava, Plzeň and Liberec. The Duchy of Bohemia was founded in the late 9th century under Great Moravia. It was formally recognized as an Imperial Estate of the Holy Roman Empire in 1002 and became Kingdom of Bohemia, a kingdom in 1198. Following the Battle of Mohács in 1526, all of the Lands of the Bohemian Crown were gradually integrated into the Habsburg monarchy. Nearly a hundred years later, the Protestantism, Protestant Bohemian Revolt led to the Thirty Years' War. After the Battle of White ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rainbow
A rainbow is an optical phenomenon caused by refraction, internal reflection and dispersion of light in water droplets resulting in a continuous spectrum of light appearing in the sky. The rainbow takes the form of a multicoloured circular arc. Rainbows caused by sunlight always appear in the section of sky directly opposite the Sun. Rainbows can be caused by many forms of airborne water. These include not only rain, but also mist, spray, and airborne dew. Rainbows can be full circles. However, the observer normally sees only an arc formed by illuminated droplets above the ground, and centered on a line from the Sun to the observer's eye. In a primary rainbow, the arc shows red on the outer part and violet on the inner side. This rainbow is caused by light being refracted when entering a droplet of water, then reflected inside on the back of the droplet and refracted again when leaving it. In a double rainbow, a second arc is seen outside the primary arc, and has the or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dichroic Glass
Dichroic glass is glass which can display multiple different colors depending on lighting conditions. One dichroic material is a modern composite non-translucent glass that is produced by stacking layers of metal oxides which give the glass shifting colors depending on the angle of view, causing an array of colors to be displayed as an example of thin-film optics. The resulting glass is used for decorative purposes such as stained glass, jewelry and other forms of glass art. The commercial title of "dichroic" can also display three or more colors (trichroic) and even iridescence in some cases. The term ''dichroic'' is used more precisely when labelling interference filters for laboratory use. Another dichroic glass material first appeared in a few pieces of Roman glass from the 4th century and consists of a translucent glass containing colloidal gold and silver particles dispersed in the glass matrix in certain proportions so that the glass has the property of displaying a partic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physical Vapor Deposition
Physical vapor deposition (PVD), sometimes called physical vapor transport (PVT), describes a variety of vacuum deposition methods which can be used to produce thin films and coatings on substrates including metals, ceramics, glass, and polymers. PVD is characterized by a process in which the material transitions from a condensed phase to a vapor phase and then back to a thin film condensed phase. The most common PVD processes are Sputter coating, sputtering and Evaporation (deposition), evaporation. PVD is used in the manufacturing of items which require thin films for optical, mechanical, electrical, acoustic or chemical functions. Examples include semiconductor devices such as thin-film solar cells, microelectromechanical devices such as thin film bulk acoustic resonator, aluminized Polyethylene terephthalate, PET film for food packaging and balloons, and titanium nitride coated cutting tools for metalworking. Besides PVD tools for fabrication, special smaller tools used mai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aurora Borealis
An aurora ( aurorae or auroras), also commonly known as the northern lights (aurora borealis) or southern lights (aurora australis), is a natural light display in Earth's sky, predominantly observed in high-latitude regions (around the Arctic and Antarctic). Auroras display dynamic patterns of radiant lights that appear as curtains, rays, spirals or dynamic flickers covering the entire sky. Auroras are the result of disturbances in the Earth's magnetosphere caused by enhanced speeds of solar wind from coronal holes and coronal mass ejections. These disturbances alter the trajectories of charged particles in the magnetospheric plasma. These particles, mainly electrons and protons, precipitate into the upper atmosphere ( thermosphere/exosphere). The resulting ionization and excitation of atmospheric constituents emit light of varying color and complexity. The form of the aurora, occurring within bands around both polar regions, is also dependent on the amount of accelera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
