gear grinding
51Four-slide — A four slide machine The same four slide machine from another angle A fou …
52List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …
53Semi-trailer truck — A semi trailer truck, also known as tractor trailer or (in the United Kingdom and Ireland) articulated lorry, is an articulated truck or lorry consisting of a towing engine ( tractor in the United States, prime mover in Australia, and truck in… …
54Experience point — Level up redirects here. For the BBC television program, see Level Up. An experience point (often abbreviated to Exp or XP) is a unit of measurement used in many role playing games (RPGs) and role playing video games to quantify a player… …
55Mandrel — For other uses, see Mandrel (disambiguation). Not to be confused with Mandrill (the primate species). Old shop made mandrel for turning hollow objects on an engine lathe …
56aerospace industry — Introduction assemblage of manufacturing concerns that deal with vehicular flight within and beyond the Earth s atmosphere. (The term aerospace is derived from the words aeronautics and spaceflight.) The aerospace industry is engaged in the …
57industrial glass — Introduction solid material that is normally lustrous and transparent in appearance and that shows great durability under exposure to the natural elements. These three properties lustre, transparency, and durability make glass a favoured… …
58Ralph Flanders — Infobox Senator name = Ralph Edward Flanders imagesize = 175px birth date = birth date|mf=yes|1880|9|28 birth place = Barnet, Vermont death date = death date and age|mf=yes|1970|2|19|1880|9|28 death place = Springfield, Vermont resting place =… …
59Tremec TR-3650 transmission — The TREMEC TR 3650 is a 5 speed manual transmission for longitudinal engine automobiles. It includes a 5th gear that functions as an overdrive gear, light weight aluminum housings, a synchromesh reverse gear, and synchromeshed helical cut forward …
60Tool — For other uses, see Tool (disambiguation). A modern toolbox. A tool is a device that can be used to produce an item or achieve a task, but that is not consumed in the process. Informally the word is also used to describe a procedure or process… …
