battery-operated electric fence controller
1Military equipment of Turkey — The military equipment of Turkey includes a wide array of arms, artilleries, large surface vessels, cannons, armored vehicles, mortars, unmanned vehicles and many different equipments. Contents 1 Historical development 1.1 General 1.2 1923 1950 …
2Burglar alarm — Silent alarm redirects here. For the album, see Silent Alarm (album). Burglar (or intrusion), fire and safety alarms are all electronic today. Sensors are connected to a control unit via a low voltage hardwire or narrowband RF signal which is… …
3North American railroad signals — Main article: North American railway signaling Baltimore and Ohio Railroad Color Position Light bracket masts at Magnolia, West Virginia North American railroad signals generally fall into the category of multi headed electrically lit units… …
4Railway signal — Not to be confused with Railway signalling. A signal is a mechanical or electrical device erected beside a railway line to pass information relating to the state of the line ahead to train/engine drivers. The driver interprets the signal s… …
5performing arts — arts or skills that require public performance, as acting, singing, or dancing. [1945 50] * * * ▪ 2009 Introduction Music Classical. The last vestiges of the Cold War seemed to thaw for a moment on Feb. 26, 2008, when the unfamiliar strains …
6Compass — This article is about the direction finding instrument used in navigation. For other uses, see Compass (disambiguation). A simple dry magnetic pocket compass …
7Topic outline of robotics — Robotics is the science and technology of designing, making, and applying robots, including theory from many contributing fields. A robot is a mechanical or virtual, artificial . It is usually an electromechanical system, which, by its appearance …
