core molding
81Metalworking terminology — This article is a list of terms commonly used in the practice of metalworking. Contents 1 Processes 1.1 Casting 1.2 Forge work 1.3 Heat treating …
82Cyclic Olefin Copolymer — Chembox new Name = Cyclic Olefin Copolymer ImageFile = Cyclic Olefin Copolymer.png OtherNames = Ethylene Copolymer; COC; Cyclo Olefinecopolymer; Cyclic Olefin Polymer; Ethylene norbornene Copolymer Section1 = Chembox Identifiers CASNo = 26007 43… …
83Computer keyboard — A key being pressed on a computer keyboard. In computing, a keyboard is a typewriter style keyboard, which uses an arrangement of buttons or keys, to act as mechanical levers or electronic switches. Following the decline of punch cards and paper… …
84Flash (manufacturing) — Flash, also known as flashing, is excess material attached to a molded, forged, or cast product, which must usually be removed. This is typically caused by leakage of the material between the two surfaces of a mold (beginning along the parting… …
85Exercise ball — An exercise ball, also known as a Swiss ball, is a ball constructed of elastic soft PVC with a diameter of around 35 to 85 cm (14 to 34 inches). It is used in physical therapy and exercise.The ball is also known by a number of different names,… …
86Museu Nacional de Belas Artes — Coordinates: 22°54′31.57″S 43°10′32.54″W / 22.9087694°S 43.1757056°W / 22.9087694; 43.1757056 …
87Character education — is an umbrella term loosely used to describe the teaching of children in a manner that will help them develop variously as moral, civic, good, mannered, behaved, non bullying, healthy, critical, successful, traditional, compliant and/ or socially …
88glass — Mesopotamian artisans began making glass objects sometime in the third millennium b.c. This is evident from the discovery of small lumps of glass scraps or debris in the ruins of ancient artisans workshops. Whatever glass products these… …
89Foam — This article is about the substance formed from trapped gas bubbles. For other uses, see Foam (disambiguation). Soap foam bubbles Contents 1 Definition …
90Photonic crystal — The opal in this bracelet contains a natural periodic microstructure responsible for its iridescent color. It is essentially a natural photonic crystal, although it does not have a complete photonic band gap. Photonic crystals are periodic… …
