eccentric apparatus
21Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… …
22articulator — A mechanical device which represents the temporomandibular joints and jaw members to which maxillary and mandibular casts may be attached. SYN: occluding frame. adjustable a. 1. an a. which may be adjusted to permit movement of the casts into… …
23pseudopia — The term pseudopia comes from the Greek words pseudos (untruthfulness) and opsis (seeing). It was introduced by the American physician Edward Hammond Clarke (1820 1877) in a book published posthumously in 1878. Clarke used pseu dopia as an… …
24Boffin — In the slang of the United Kingdom, Australia, New Zealand and South Africa, boffins are scientists, engineers, and other people who are stereotypically seen as engaged in technical or scientific research. The word conjures up an image of men in… …
25Mechanical screening — Mechanical screening, often just called screening, is the practice of taking granulated ore material and separating it into multiple grades by particle size. This practice occurs in a variety of industries such as mining and mineral processing,… …
26mathematics — /math euh mat iks/, n. 1. (used with a sing. v.) the systematic treatment of magnitude, relationships between figures and forms, and relations between quantities expressed symbolically. 2. (used with a sing. or pl. v.) mathematical procedures,… …
27English literature — Introduction the body of written works produced in the English language by inhabitants of the British Isles (including Ireland) from the 7th century to the present day. The major literatures written in English outside the British Isles are… …
28Lyonesse Trilogy — The Lyonesse Trilogy is a group of three fantasy novels by Jack Vance, set in the European Dark Ages, in the mythical Elder Isles west of France and southwest of Britain, a generation or two before the birth of King Arthur. An Atlantis theme… …
29motion-picture technology — Introduction the means for the production and showing of motion pictures. It includes not only the motion picture camera and projector but also such technologies as those involved in recording sound, in editing both picture and sound, in… …
30Haidinger's brush — is an entoptic phenomenon first described by Austrianphysicist Wilhelm Karl von Haidinger in 1844.Many people are able to perceive polarization of light.It may be seen as a yellowish horizontal bar or bow tie shape (with fuzzy ends, hence the… …
