emergency push-buttons
1Push-button — Buttons on a handheld calculator …
2Focke-Wulf Fw 190 — infobox Aircraft name =Fw 190 type =Fighter manufacturer = Primarily Focke Wulf Flugzeugbau AG, but also Ago, Arado, Fieseler, Mimetall, Norddeutsche Dornier and others caption = Fw 190 A designer =Kurt Tank first flight =1 June 1939 introduced… …
3Rotary dial — A German Fe TAp 615, (R g) a widespread rotary dial telephone of the 1960s to the 1980s The rotary dial is a device mounted on or in a telephone or switchboard that is designed to send electrical pulses, known as pulse dialing, corresponding to… …
4Squelch — In telecommunications, squelch is a circuit function that acts to suppress the audio (or video) output of a receiver in the absence of a sufficiently strong desired input signal. Contents 1 Carrier squelch 2 Tone squelch and selective calling 2.1 …
5British Rail Class 313 — A refreshed Southern Class 313 No. 313203 at Brighton on the West Coastway Line …
6Cryptanalysis of the Enigma — enabled the western Allies in World War II to read substantial amounts of secret Morse coded radio communications of the Axis powers that had been enciphered using Enigma machines. This yielded military intelligence which, along with that from… …
7Advanced Crew Escape Suit — The Advanced Crew Escape Suit, or ACES, is a full pressure suit currently worn by all Space Shuttle crews for the ascent and entry portions of flight. The suit is a direct descendant of the U.S. Air Force high altitude pressure suits worn by the… …
8AS-Interface — (Actuator Sensor Interface, AS i) is the simplest of the industrial networking protocols used in PLC, DCS and PC based automation systems. It is designed for connecting simple field I/O devices (e.g. binary (ON/OFF) devices such as actuators and… …
9Sarah J. Tracy — Sarah J. Tracy, Ph.D., is an organizational communication scholar who received her Master of Arts and Ph.D. degrees in Communication from the University of Colorado Boulder. During her time at the university, she held three academic positions… …
10dial — 01. I think you ve got the wrong number. What number did you [dial]? 02. Could you [dial] the number for me? My hands are all dirty. 03. If there is an emergency, [dial] 911. 04. Timothy felt really nervous as he [dialed] the phone number of a… …
