Satin the light reflecting is not scattered as much by the fibres, which have fewer tucks. Satin is usually a warp-faced weaving technique in which warp yarns are "floated" over weft yarns, although there are also weft-faced satins. If a fabric is formed with a satin weave using filament fibres such as silk, polyester or nylon, the corresponding fabric is termed a "satin", although some definitions insist that the fabric be made from silk. If the yarns used are short-staple yarns such as cotton, the fabric formed is considered a sateen. A satin fabric tends to have a high luster due
Dark fibre these systems much less susceptible to interference. Dark fibre A dark fibre or unlit fibre is an unused optical fibre, available for use in fibre-optic communication. "Dark fibre" originally referred to the potential network capacity of telecommunication infrastructure. Dark fibre may be leased from a network service provider. Much of the cost of installing cables is in the civil engineering work required. This includes planning and routing, obtaining permissions, creating ducts and channels for the cables, and finally installation and connection. This work usually accounts for most of the cost of developing fibre networks. For example, in Amsterdam's citywide installation