Ratio Studiorum — • The educational system of the Jesuits Catholic Encyclopedia. Kevin Knight. 2006. Ratio Studiorum Ratio Studiorum † … Catholic encyclopedia
Half-pipe — A half pipe is a structure used in gravity extreme sports such as snowboarding, skateboarding, skiing, freestyle BMX and inline skating. The structure is usually wood, although sometimes the surface is made of another material such as concrete,… … Wikipedia
Jerusalem during the Ottoman period — The rule of the Ottoman Empire over the region of Jerusalem lasted 400 years from 1517 until its conquest by Britain in 1917. Since the end of the Crusader rule over the holy city, Jerusalem had almost stagnated, and become a civilian city.… … Wikipedia
Second Stadtholderless Period — The Second Stadtholderless Period or Era ( nl. Tweede Stadhouderloze Tijdperk) is the designation in Dutch historiography of the period between the death of stadtholder William III on March 19 [This is the date from the Gregorian calendar that… … Wikipedia
Mexican period of Arizona — [edit] History of Arizona European Colonization … Wikipedia
Blip-to-scan ratio — In radar systems, the blip to scan ratio, or blip/scan, is the ratio of the number of times a target appears on a radar display to the number of times it could have been seen. [ [http://www.answers.com/topic/blip scan ratio?cat=technology blip… … Wikipedia
Permian Period — Interval of geologic time, 290–248 million years ago. The last of the six periods of the Paleozoic Era, it follows the Carboniferous Period. During the Permian, the continents joined to form a single supercontinent, Pangea. Hot, dry conditions… … Universalium
Taishō period — The nihongo|Taishō period|大正時代|Taishō jidai|extra= period of great righteousness , or Taishō era, is a period in the history of Japan dating from July 30, 1912 to December 25, 1926, coinciding with the reign of the Taishō Emperor. The health of… … Wikipedia
Weierstrass's elliptic functions — In mathematics, Weierstrass s elliptic functions are elliptic functions that take a particularly simple form; they are named for Karl Weierstrass. This class of functions are also referred to as p functions and generally written using the symbol… … Wikipedia
Fundamental pair of periods — In mathematics, a fundamental pair of periods is an ordered pair of complex numbers that define a lattice in the complex plane. This type of lattice is the underlying object with which elliptic functions and modular forms are defined. Although… … Wikipedia