cutting edge normal plane
101drawing — /draw ing/, n. 1. the act of a person or thing that draws. 2. a graphic representation by lines of an object or idea, as with a pencil; a delineation of form without reference to color. 3. a sketch, plan, or design, esp. one made with pen, pencil …
102List of spaceflight-related accidents and incidents — Death in space redirects here. For death in specifically outer space conditions, see Space exposure. Space Shuttle Challenger disintegrates 73 seconds after launch, due to hot gases escaping the SRBs leading to structural failure of the external… …
103Silicon nitride — Preferred IUPAC name Silicon nitride …
104Drill — For other uses, see Drill (disambiguation). Drill scheme A drill or drill motor is a tool fitted with a cutting tool attachment or driving tool attachment, usually a drill bit or driver bit, used for drilling holes in various materials or… …
105Leicester and Swannington Railway — The Leicester and Swannington Railway (L S) was one of England s first railways, being opened on July 17 1832 to bring coal from pits in west Leicestershire to Leicester.OverviewThe construction of the railway was a pivotal moment in the… …
106History of algebra — Elementary algebra is the branch of mathematics that deals with solving for the operands of arithmetic equations. Modern or abstract algebra has its origins as an abstraction of elementary algebra. Historians know that the earliest mathematical… …
107gastropod — /gas treuh pod /, n. 1. any mollusk of the class Gastropoda, comprising the snails, whelks, slugs, etc. adj. 2. Also, gastropodous /ga strop euh deuhs/. belonging or pertaining to the gastropods. [1820 30; < NL Gast(e)ropoda a class of mollusks.… …
108Wrench — For other uses, see Wrench (disambiguation). A set of chrome vanadium metric wrenches, open at one end, box/ring at the other. This type is commonly known as a combination wrench. A wrench or spanner is a tool used to provide grip and mechanical… …
109Dornier Do 217 — Do 217 Do 217 E 2 Role Medium bomber Heavy bomber …
110Neil Armstrong — For other uses, see Neil Armstrong (disambiguation) …
