standard plate specimen
51Rock microstructure — includes the texture of a rock and the small scale rock structures. The words texture and microstructure are interchangeable, with the latter preferred in modern geological literature. However, texture is still acceptable because it is a useful… …
52Dutch inventions and discoveries — The Dutch people have a history and tradition in inventing and discovery. Dutch scientists and engineers have made a remarkable contribution to human progress as a whole, from something as simple as the sawmill to microbiology and artificial… …
53English longbow — The English longbow, also called the Welsh longbow, was a powerful type of medieval longbow (a tall bow for archery) about 6 ft 6 in (2.0 m) long used by the English, Scots and Welsh, both for hunting and as a weapon in medieval warfare. English… …
54Superlens — A superlens, super lens or perfect lens is a lens which uses metamaterials to go beyond the diffraction limit. The diffraction limit is an inherent limitation in conventional optical devices or lenses.[1] In 2000, a type of lens was proposed,… …
55Ordnance QF 18 pounder — Artillerie australienne en action dans le secteur d Ypres, le 28 septembre 1917 (Bataille de Passchendaele). Présentation Pays Royaume Uni …
56Electron — For other uses, see Electron (disambiguation). Electron Experiments with a Crookes tube first demonstrated the particle nature of electrons. In this illustration, the profile of the cross shaped target is projected against the tube face at right… …
57Marathi language — Marathi मराठी Marāṭhī Marathi written in Devanāgarī and …
58Porcelain — Fine China redirects here. For the band, see Fine China (band). This article is about the ceramic material. For other uses, see Porcelain (disambiguation). Chinese moon flask, 1723 35, Qing Dynasty …
59artillery — /ahr til euh ree/, n. 1. mounted projectile firing guns or missile launchers, mobile or stationary, light or heavy, as distinguished from small arms. 2. the troops or the branch of an army concerned with the use and service of such weapons. 3.… …
60Making of the Catholic Encyclopedia — Making of the Catholic Encyclopedia † Catholic Encyclopedia ► The Making of the Catholic Encyclopedia (1917) The need of a Catholic Encyclopedia in English was manifest for many years before it was decided to publish one. Editors of… …
