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.
Eyepieces (ocular lenses): Two removable. lenses that you look through to observe the. specimen or object on the slide. The magnifying power of the ocular. lenses on your microscope is 10X. The circle you can see through the eyepiece. is called the field of view . Note: one of the oculars may have a pointer. used to identify a specific area on the slide.