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31Pickup (music) — A pickup device acts as a transducer that captures mechanical vibrations (usually from suitably equipped stringed instruments such as the electric guitar, electric bass guitar or electric violin) and converts them to an electrical signal, which… …
32Walt Disney World Monorail System — Info Locale Walt Disney World Resort Transit type Monorail …
33Capacitor — This article is about the electronic component. For the physical phenomenon, see capacitance. For an overview of various kinds of capacitors, see types of capacitor. Capacitor Modern capacitors, by a cm ruler Type Passive …
34Membrane potential — Differences in concentration of ions on opposite sides of a cellular membrane lead to a voltage called the membrane potential. Many ions have a concentration gradient across the membrane, including potassium (K+), which is at a high inside and a… …
35O scale — Australian O gauge model railway O scale (or O gauge) is a scale commonly used for toy trains and model railroading. Originally introduced by German toy manufacturer Märklin around 1900, by the 1930s three rail alternating current O gauge was the …
36Optacon — The Optacon (OPtical to TActile CONverter)[1] is an electromechanical device that enables blind people to read printed material that has not been transcribed into Braille. Contents 1 Description 2 History …
37NZR 56-foot carriage — NZR A class 56 foot carriage A NZR 56 foot carriage used by the Taieri Gorge Railway at Dunedin Railway Station In service 1937 present Manufacturer New Zealand Rail …
38Nanotechnology — Part of a series of articles on …
39Spot welding — is a type of resistance welding used to weld various sheet metal products. Typically the sheets are in the 0.5 3.0 mm thickness range. The process uses two shaped copper alloy electrodes to concentrate welding current into a small spot and to… …
40Restriction of Hazardous Substances Directive — European Union directive: Directive 2002/95/EC Directive on the restriction of the use of certain hazardous substances in electrical and electronic equipment Made by Council Parliament …
