River Leen

The River Leen is 15 mile (24km) long tributary of the River Trent that flows through Nottinghamshire, and the city of Nottingham in the East Midlands of England.

Course

The Leen rises as a series of springs at the foot of the Robin Hood Hills just outside Annesley. It then flows through the grounds and lakes of Newstead Abbey, passing Papplewick and on through Bestwood Country Park, following the route of the Leen Valley into suburban and urban Nottingham. Within the city it flows through the centre of Bulwell, and passes Basford where it is joined by the Day Brook. The Leen then flows through Radford, and Lenton before joining the River Trent next to Riverside Way in The Meadows.

History

Leen is a corruption through various renderings of the Celtic word llyn, "lake" or "pool", and Anglo‐Saxon hlynna, meaning "streamlet". Some of the surrounding villages derived their name from the River Leen. Lenton, ton being the Saxon word for "village"; and Linby, by being the Danish equivalent of ton.

Del

Del, or nabla, is an operator used in mathematics, in particular, in vector calculus, as a vector differential operator, usually represented by the nabla symbol ∇. When applied to a function defined on a one-dimensional domain, it denotes its standard derivative as defined in calculus. When applied to a field (a function defined on a multi-dimensional domain), del may denote the gradient (locally steepest slope) of a scalar field (or sometimes of a vector field, as in the Navier–Stokes equations), the divergence of a vector field, or the curl (rotation) of a vector field, depending on the way it is applied.

Strictly speaking, del is not a specific operator, but rather a convenient mathematical notation for those three operators, that makes many equations easier to write and remember. The del symbol can be interpreted as a vector of partial derivative operators, and its three possible meanings—gradient, divergence, and curl—can be formally viewed as the product with a scalar, dot product, and cross product, respectively, of the del "operator" with the field. These formal products do not necessarily commute with other operators or products.

Deel (clothing)

A deel (Mongolian: дээл [teːɮ]; Buryat: дэгэл) is an item of traditional clothing commonly worn since centuries ago among the Mongols and other nomadic tribes of Central Asia, including various Turkic peoples, and can be made from cotton, silk, wool, or brocade. The deel is still commonly worn by both men and women outside major towns, especially by herders. In urban areas, deels are mostly only worn by elderly people, or on festive occasions. The deel appears similar to a caftan or an old European folded tunic. Deels typically reach to below the wearer's knees and fan out at the bottom and are commonly blue, olive, or burgundy, though there are deels in a variety of other colors.

Description

The deel looks like a large overcoat when not worn. Instead of buttoning together in the middle, the sides are pulled against the wearers body, the right flap close to the body with the left covering. On the right side of the wearer are typically 5 or 6 clasps to hold the top flap in place. There is one clasp below the armpit, three at the shoulder, and either one or two at the neckline.

Del (disambiguation)

Del or DEL may refer to:

In computing: