lock magnet

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• Electronic lock — A quick demonstration of an electronic door lock An electronic lock (more precisely an electric lock) is a locking device which operates by means of electric current. Electric locks are sometimes stand alone with an electronic control assembly… …   Wikipedia

• Magnetic lock — A magnetic lock is a simple locking device that consists of an electromagnet and armature plate. By attaching the electromagnet to the door frame and the armature plate to the door, a current passing through the electromagnet attracts the… …   Wikipedia

• Magnetic-coded lock — A magnetic coded lock is a lock device that uses pins in combination with magnets to prevent entry by either non matching keys by teething or magnetic polarity. Magnetic coded locks encompass knob locks, cylinder locks, lever locks, and deadbolt… …   Wikipedia

• Keeper of a magnet — Keeper Keep er, n. 1. One who, or that which, keeps; one who, or that which, holds or has possession of anything. [1913 Webster] 2. One who retains in custody; one who has the care of a prison and the charge of prisoners. [1913 Webster] 3. One… …   The Collaborative International Dictionary of English

• Twilight Zone (pinball) — Infobox Pinball | title = Twilight Zone manufacturer = Midway Model=50020 system = Midway WPC (Fliptronics II) Players = 4 designer = Pat Lawlor, Larry DeMar, Ted Estes programmer = Larry DeMar, Ted Estes artwork = John Youssi mechanics = John… …   Wikipedia

• List of problems solved by MacGyver — This is a list of problems that have been solved by the fictional character MacGyver from the television series of the same name. (This list is not yet comprehensive.) MacGyver employs his resourcefulness and his knowledge of chemistry,… …   Wikipedia

• Computer 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… …   Wikipedia

• Compass — This article is about the direction finding instrument used in navigation. For other uses, see Compass (disambiguation). A simple dry magnetic pocket compass …   Wikipedia

• Dell Inspiron — Logo Dell s Inspiron computer product line started as a range of laptop computers targeted at the entry level, budget, a Mobile Celeron or Mobile Pentium II processor with SDRAM, and had a high starting price of $2,799. Today, though, the… …   Wikipedia

• List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …   Wikipedia

• Bolted joint — Bolted joints are one of the most common elements in construction and machine design. They consist of cap screws or studs that capture and join other parts, and are secured with the mating of screw threads.There are two main types of bolted joint …   Wikipedia