protection and alarm systems
91Schreckstoff — In 1938, the Austrian ethologist Karl von Frisch made his first report on the existence of the chemical alarm signal known as Schreckstoff in minnows. An alarm signal is a response produced by an individual, the “sender,” reacting to a hazard… …
92Plant defense against herbivory — Poison ivy produces urushiol to protect the plant from herbivores. In humans this chemical produces an allergic skin rash, known as urushiol induced contact dermatitis …
93Northeast Blackout of 2003 — The Northeast Blackout of 2003 was a massive widespread power outage that occurred throughout parts of the Northeastern and Midwestern United States, and Ontario, Canada on Thursday, August 14, 2003, at approximately 4:15 pm EDT (20:15 UTC), with …
94NFPA 72 — The NFPA 72 (National Fire Alarm Code) is a standard published by the National Fire Protection Association. Purpose The NFPA 72 specifies the application, installation, location, performance, inspection, testing, and maintenance of fire alarm… …
95Sleep — Waking up redirects here. For other uses, see Waking Up (disambiguation). This article is about sleep in general; for specifically non human sleep see Sleep (non human); for other uses, see Sleep (disambiguation). Sleeping child Sleep is a… …
96Australia — /aw strayl yeuh/, n. 1. a continent SE of Asia, between the Indian and the Pacific oceans. 18,438,824; 2,948,366 sq. mi. (7,636,270 sq. km). 2. Commonwealth of, a member of the Commonwealth of Nations, consisting of the federated states and… …
97Our Lady of the Angels School fire — Monument at Queen of Heaven Cemetery The Our Lady of the Angels School Fire broke out shortly before classes were to be dismissed on December 1, 1958, at the foot of a stairway in the Our Lady of the Angels School in Chicago, Illinois. The… …
98Signals intelligence — SIGINT redirects here. For the UNIX signal, see SIGINT (POSIX). RAF Menwith Hill, a large site in the United Kingdom, part of ECHELON and the UK USA Security Agreement. Signals intelligence (often contracted to SIGINT) is intelligence gathering… …
99Cairns Tilt Train derailment — infobox AU rail accident title = Cairns Tilt Train derailment date = 15 November 2004 time = 11:55 pm location = Berajondo, Queensland location dist = 342 location dir = NNW location city = Brisbane line = North Coast railway line operator = QR… …
100japan — japanner, n. /jeuh pan /, n., adj., v., japanned, japanning. n. 1. any of various hard, durable, black varnishes, originally from Japan, for coating wood, metal, or other surfaces. 2. work varnished and figured in the Japanese manner. 3. Japans,… …
