Politically, Ireland is divided between the Republic of Ireland (officially also named Ireland), which covers five-sixths of the island, and Northern Ireland, a part of the United Kingdom, which covers the remaining area and is located in the northeast of the island.orthern Ireland is a part of the United Kingdom with a local executive and assembly which exercise devolved powers. The executive is jointly headed by the first and deputy-first minister, with the ministries being allocated in proportion with each party's representation in the assembly. Its capital is Belfast.
Lens (optics) For other uses, see Lens. A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction. A simple lens consists of a single piece of transparent material, while a compound lens consists of several simple lenses (elements), usually arranged along a common axis.
A microscope is a device that magnifies objects that are too small to be. seen by the eye alone. A compound microscope has three main parts that. work together to bring a magnified image to your eye. A light source. illuminates the object being observed. A lens on the nosepiece magnifies. the image of the object. A lens in the eyepiece further enlarges the image. and projects the image into your eye. Thin glass plates, or slides, are used to observe biological specimens. under a microscope. The slides are made in one of two ways. A prepared. slide is made by encasing a specimen in glass. This permanent slide. can be stored and viewed many times.