diode mount
81Galena — Infobox mineral name = Galena category = Sulfides boxwidth = boxbgcolor = imagesize = 150 caption = Galena crystal from Galena, Kansas formula = lead sulfide (PbS) molweight = color = Lead gray, silvery habit = Cubes and octahedra, tabular and… …
82April 2004 — NOTOC 2004 : January February March April May June July August September October November DecemberEvents April 30, 2004*U.S. newscast Nightline is taken off the air by several stations owned by the Sinclair Broadcast Group because of its planned… …
83Heat pipe — A heat pipe is a heat transfer mechanism that can transport large quantities of heat with a very small difference in temperature between the hotter and colder interfaces. Inside a heat pipe, at the hot interface a fluid turns to vapour and the… …
84Gas lighting — For other uses, see Gaslight (disambiguation). Gas lighting is production of artificial light from combustion of a gaseous fuel, including hydrogen, methane, carbon monoxide, propane, butane, acetylene, ethylene, or natural gas. Before… …
85PICAXE — is the name of a UK sourced microcontroller system based on a range of Microchip PICs. There are 13 PICAXE variants of differing pin counts from 8 to 40 pins. Initially marketed for use in education and by electronics hobbyists, they are also… …
86Paintball marker — A paintball marker, also known as a paintball gun, is the central or main piece of equipment in the sport of paintball. Markers make use of an expanding gas such as carbon dioxide, compressed air or nitrogen dioxide to propel paintballs through… …
87Aspheric lens — An aspheric lens or asphere is a lens whose surfaces have a profile that is neither a portion of a sphere nor of a circular cylinder. In photography, a lens assembly that includes an aspheric element is often called an aspherical lens.The asphere …
88Exit sign — An exit sign is a device in a public facility (such as a building, airplane or boat) that displays where the emergency exit is. Most exit signs around the world are in pictogram form, with or without text supplement. There has been a shift… …
89Hot Metal Bridge — Roadway south portal from the bike trail. Official name Monongahela Connecting Railroad Bridge and Hot Metal Bridge Other name(s) MC RR Bri …
90LM317 — is the standard part number for an integrated three terminal adjustable linear voltage regulator. LM317 is a positive voltage regulator supporting input voltage of 3V to 40V and output voltage between 1.25V and 37V. A typical current rating is… …
