semicircle
31Hémicycle — Un hémicycle est une construction ayant la forme d un demi cercle. On parle de l hémicycle d un théâtre, d une basilique (voir abside), d un parlement. Hémicycle parlementaire Dans un parlement, une « salle des séances » disposée en… …
32semicircular — semicircle ► NOUN ▪ a half of a circle or of its circumference. DERIVATIVES semicircular adjective …
33Arbelos — In geometry, an arbelos is a plane region bounded by a semicircle of diameter 1, connected to semicircles of diameters r and (1 − r ), all oriented the same way and sharing a common baseline. Archimedes is believed to be the first mathematician… …
34Book of Lemmas — The Book of Lemmas is a book attributed to Archimedes by Thābit ibn Qurra. The book was written over 2,200 years ago and consists of fifteen propositions on circles. [citeweb| url=http://agutie.homestead.com/files/ArchBooLem00.htm|… …
35Greek arithmetic, geometry and harmonics: Thales to Plato — Ian Mueller INTRODUCTION: PROCLUS’ HISTORY OF GEOMETRY In a famous passage in Book VII of the Republic starting at Socrates proposes to inquire about the studies (mathēmata) needed to train the young people who will become leaders of the ideal… …
36Crocker (sport) — Crocker (sometimes spelled Croccer) is a team sport played between two large teams. Its origins are in cricket and baseball. It also makes the use of a soccer ball which may explain its name. It is a casual sport not played formally, but often… …
37Commemorative coins of Poland: 2002 — Main article: Commemorative coins of Poland Poland has a rich selection of Gold and Silver commemorative coins.In the year 2002 coins were launched in the series: Polish kings and princes , The Animals of the World , Polish Travelers and… …
38Salinon — The salinon (meaning salt cellar in Greek) is a geometrical figure that consists of four semicircles. It was first introduced by Archimedes in his Book of Lemmas .citeweb title= Salinon. From MathWorld A Wolfram Web Resource last=Weisstein… …
39Wikipedia:Reference desk/Mathematics — The Wikipedia Reference Desk covering the topic of mathematics. Mathematics #eee #f5f5f5 #eee #aaa #aaa #aaa #00f #36b #000 #00f mathematics Wikipedia:Refere …
40Hyperbolic motion — In geometry, a hyperbolic motion is a mapping of a model of hyperbolic geometry that preserves the distance measure in the model. Such a mapping is analogous to congruences of Euclidean geometry which are compositions of rotations and… …
