alarm — 1 noun 1 (U) a feeling of fear or anxiety because something dangerous might happen: I turned in alarm as the wind blew the door open. 2 (C) something such as a bell or a light that warns people of danger: a fire alarm | Something has set the car… … Longman dictionary of contemporary English
High voltage — The term high voltage characterizes electrical circuits, in which the voltage used is the cause of particular safety concerns and insulation requirements. High voltage is used in electrical power distribution, in cathode ray tubes, to generate X… … Wikipedia
Burglar 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… … Wikipedia
Distributed temperature sensing — systems (DTS) are optoelectronic devices which measure temperatures by means of optical fibres functioning as linear sensors. Temperatures are recorded along the optical sensor cable, thus not at points, but as a continuous profile. A high… … Wikipedia
Low water alarm — Low Low (l[=o]), a. [Compar. {Lower} (l[=o] [ e]r); superl. {Lowest}.] [OE. low, louh, lah, Icel. l[=a]gr; akin to Sw. l[*a]g, Dan. lav, D. laag, and E. lie. See {Lie} to be prostrate.] [1913 Webster] 1. Occupying an inferior position or place;… … The Collaborative International Dictionary of English
Nuclear weapon design — The first nuclear weapons, though large, cumbersome and inefficient, provided the basic design building blocks of all future weapons. Here the Gadget device is prepared for the first nuclear test: Trinity. Nuclear weapon designs are physical,… … Wikipedia
Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… … Universalium
building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… … Universalium
Thermal power station — Republika Power Plant, a thermal power station in Pernik, Bulgaria … Wikipedia
MythBusters (2009 season) — Country of origin Australia United States No. of episodes 23 (includes 3 specials) Broadcast Original channel … Wikipedia
Elevator — For other uses, see Elevator (disambiguation). A set of lifts in the lower level of a London Underground station. The arrows indicate each elevator s position and direction of travel … Wikipedia