Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, wire- and tube-drawing machines, printing presses, cars, motorcycles, and bicycles.
Pietra dura (Italian: [ËpjÉËtra ËduËra]) or pietre dure [ËpjÉËtre ËduËre] (see below), called parchin kari or parchinkari in South Asia, is a term for the inlay technique of using cut and fitted, highly polished colored stones to create images. It is considered a decorative art.
The Daria-i-Noor (Persian: Ø¯Ø±ÛØ§Û ÙÙØ±ââ which means âSea of lightâ in Persian; (also spelled Darya-ye Noor) is one of the largest cut diamonds in the world, weighing an estimated 182 carats (36 g). Its colour, pale pink, is one of the rarest to be found in diamonds. The Daria-i-Noor is in the Iranian Crown Jewels of Central Bank of Iran in Tehran.