Two-round system — The two round system (also known as the second ballot or runoff voting) is a voting system used to elect a single winner. Under runoff voting, the voter simply casts a single vote for their favourite candidate. However, if no candidate receives… … Wikipedia
three-field system — ▪ agriculture method of agricultural organization introduced in Europe in the Middle Ages and representing a decisive advance in production techniques. In the old two field system half the land was sown to crop and half left fallow each… … Universalium
open-field system — ▪ agriculture basic community organization of cultivation in European agriculture for 2,000 years or more. Its best known medieval form consisted of three elements: individual peasant holdings in the form of strips scattered among the… … Universalium
Field system — The study of field systems (collections of fields) in landscape history is concerned with the size, shape and orientation a number of fields. These are often adjacent, but may be separated by a later feature. Contents 1 Types of field system 2… … Wikipedia
Open field system — Generic map of a medieval manor, showing strip farming, from William R. Shepherd, Historical Atlas, 1923 The open field system was the prevalent agricultural system in much of Europe from the Middle Ages to as recently as the 20th century in some … Wikipedia
two-field — ˈ ̷ ̷| ̷ ̷ adjective : of, using, or being a system of crop rotation in which the land is divided into two parts alternately left fallow … Useful english dictionary
open field system — a farming system developed in Anglo Saxon culture. The typical example would feature a central village surrounded by three fields. Each year one filed would be left fallow and the other two cropped. The fields being worked were divided into… … Geography glossary
three-field system — noun or three course system : a system of land cultivation under which the common land is divided into three parts of which one or two in rotation lie fallow in each year and the rest are cultivated … Useful english dictionary
Two-phase electric power — Two phase electrical power was an early 20th century polyphase alternating current electric power distribution system. Two circuits were used, with voltage phases differing by 90 degrees. Usually circuits used four wires, two for each phase. Less … Wikipedia
Two by Twos — Prominent early preachers (left to right): William Gill, William Irvine, and George Walker Classification Protestant Polity Episcopal Geographical areas … Wikipedia
