ordinary spacing type
31Western architecture — Introduction history of Western architecture from prehistoric Mediterranean cultures to the present. The history of Western architecture is marked by a series of new solutions to structural problems. During the period from the… …
32Superlens — 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,… …
33Heat capacity — Thermodynamics …
34agricultural technology — Introduction application of techniques to control the growth and harvesting of animal and vegetable products. Soil preparation Mechanical processing of soil so that it is in the proper physical condition for planting is usually… …
35Feynman diagram — The Wick s expansion of the integrand gives (among others) the following termNarpsi(x)gamma^mupsi(x)arpsi(x )gamma^ upsi(x )underline{A mu(x)A u(x )};,whereunderline{A mu(x)A u(x )}=int{d^4pover(2pi)^4}{ig {mu u}over k^2+i0}e^{ k(x x )}is the… …
36Wikipedia:Manual of Style — This guideline is a part of the English Wikipedia s Manual of Style. Use common sense in applying it; it will have occasional exceptions. Please ensure that any edits to this page reflect consensus. Shortcuts …
37photography, technology of — Introduction equipment, techniques, and processes used in the production of photographs. The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …
38Majestic 12 — This article is about the purported secret committee called Majestic 12 . For other uses, see Majestic 12 (disambiguation). The 1947 letter, purported to be signed by Harry Truman, authorizing Operation Majestic Twelve . Majestic 12 (also known… …
39Agricultural fencing — In agriculture, fences are used to keep animals in or out of an area. They can be made from a wide variety of materials, depending on terrain, location and animals to be confined. Most agricultural fencing averages about 1.5 metres (about 4 feet) …
40choral music — ▪ vocal music Introduction music sung by a choir with two or more voices assigned to each part. Choral music is necessarily polyphonal i.e., consisting of two or more autonomous vocal (vocal music) lines. It has a long history in European… …
