Switch Island — [ [http://www.sefton.gov.uk/Default.aspx?page=3071 Thornton to Switch Island Link] ] [ [http://www.highways.gov.uk/roads/projects/4868.aspx M57 Switch Island Junction Improvements Phase 2] ] is a road junction south of Maghull and near Aintree in … Wikipedia
Phase variation — is an immune evasion technique employed by various types of bacteria, including Salmonella species. It involves the switching of surface antigens, to evade specific adaptive immune system responses. Salmonella use this technique to switch between … Wikipedia
Switch — For other uses, see Switch (disambiguation). Electrical switches. Top, left to right: circuit breaker, mercury switch, wafer switch, DIP switch, surface mount switch, reed switch. Bottom, left to right: wall switch (U.S. style), miniature toggle… … Wikipedia
Phase-shift keying — Passband modulation v · d · e Analog modulation AM · … Wikipedia
1ESS switch — The Number One Electronic Switching System, the first large scale Stored Program Control (SPC) telephone exchange or Electronic Switching System in the Bell System, was introduced in Succasunna, New Jersey, in May 1965[1]. The switching fabric… … Wikipedia
Pseudospark switch — The pseudospark switch, also known as a cold cathode thyratron due to the similarities with regular thyratrons, is a gas filled tube capable of high speed switching. Advantages of pseudospark switches include the ability to carry reverse currents … Wikipedia
Centrifugal switch — A centrifugal switch is an electric switch that operates using the centrifugal force created from a rotating shaft, most commonly that of an electric motor or gasoline engine. The switch is designed to activate or de activate as a function of the … Wikipedia
Molecular switch — A molecular switch is a molecule that can be reversibly shifted between two or more stable states.[1] The molecules may be shifted between the states in response to changes in e.g. pH, light, temperature, an electrical current, microenvironment,… … Wikipedia
Packet Switch Stream — In the UK, PSS, was an X.25 based packet switched network, provided by the British Post Office Telecommunications and then British Telecom from 1980, onwards. After a period of pre operational testing with customers (mainly UK Universities and… … Wikipedia
Light switch — A light switch is a switch, most commonly used to operate electric lights, permanently connected equipment, or electrical outlets.In modern homes most lights are operated using switches set in walls, usually 6 10 inches (15 25 cm) away from a… … Wikipedia
