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This is an accepted version of this page This is the latest accepted revision, reviewed on 23 January 2025. Type of clock A traditional wind-up (key-wound), mechanical spring-powered alarm clock An alarm clock or alarm is a clock that is designed to alert an individual or group of people at a specified time. The primary function of these clocks is to awaken people from their night's sleep or ...
Manual fire alarm activation requires human intervention, as distinct from automatic fire alarm activation such as that provided through the use of heat detectors and smoke detectors. It is, however, possible for call points/pull stations to be used in conjunction with automatic detection as part of the overall fire detection and alarm system .
Some fire alarm systems utilize emergency voice alarm communication systems (EVAC) [17] to provide prerecorded and manual voice messages. Voice alarm systems are typically used in high-rise buildings, arenas, and other large "defend-in-place" occupancies such as hospitals and detention facilities where total evacuation is difficult to achieve.
This false alarm was sufficiently disruptive to move the FCC to temporarily suspend the use and testing of Emergency Action Notifications (EANs) by codeword effective February 25, 1971. In the meantime, a national EBS activation (actual or test) would be routed through news service broadcast desks, then authenticated with the White House ...
La Crosse Technology introduced the radio-controlled clock, commonly (but incorrectly) called an "atomic clock" after the extremely accurate timepiece behind the radio signal it uses as a reference, into the United States commercial market in 1991. [3] [4] In 2004, the company was awarded a license to sell The Weather Channel branded weather ...
ADT began to expand into new areas, such as fire alarms and security alarms, between 1910 and 1930, but was kept separate from AT&T's Holmes alarm business. ADT became a publicly traded company in the 1960s. [12] In 1964, ADT was found to be a monopoly in restraint of trade. It was shown to provide almost 80% of the central station alarm ...
PROK.DDHAC OF HUMAN PACE Sod MD TRANSMITTED VIA FACSIMILE Regulatory Affairs ansen Research Foundaüon 1125 Trenton-Harbourton Rd. NJ 08560-0200
It has also been referred to as the "Alarm Clock" device though it has nothing to do with the design by the same name proposed earlier by Edward Teller and known as the Sloika in the Soviet Union. The fusion fuel used by the bomb was 95% enriched Lithium isotope 6 lithium deuteride , which at the time was a scarce resource, this scarcity being ...