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Such devices may be found in the form of either a circuit breaker, known as an earth-leakage circuit breaker (ELCB), or built into a socket (aka receptacle). Voltage-operated ELCBs can still be found in the wild, though these largely fell out of favour after the invention of the current-sensing based RCD (aka GFCI) technology.
A circuit breaker is an electrical safety device designed to protect an electrical circuit from damage caused by ... 16 A, 20 A, 25 A, 32 A, 40 A, 50 A, 63 A, 80 ...
The term smart meter often refers to an electricity meter, but it also may mean a device measuring natural gas, water or district heating consumption. [1] [2] More generally, a smart meter is an electronic device that records information such as consumption of electric energy, voltage levels, current, and power factor.
Originally, CB radios required the use of a callsign in addition to a purchased license ($20 in the early 1970s, reduced to $4 on March 1, 1975, or $22.6 in 2023 dollars). However, when the CB craze was at its peak, many people ignored the requirement and invented their own nicknames (known as "handles").
The North East Line, the first line operated by SBS Transit, opened on 20 June 2003, is one of the first fully automated heavy rail lines in the world. [38] [39] On 15 January 2006, after intense two-and-a-half years lobbying by the public, [40] Buangkok station was opened, [41] [42] followed by Woodleigh station much later on 20 June 2011. [43]
The AOL.com video experience serves up the best video content from AOL and around the web, curating informative and entertaining snackable videos.
Diagram of a DDoS attack. Note how multiple computers are attacking a single computer. In computing, a denial-of-service attack (DoS attack) is a cyber-attack in which the perpetrator seeks to make a machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services of a host connected to a network.
In 2013, a National Public Radio report said 20% of computer programmers in the US are female. [223] [224] There is no general consensus for any key reason there are less women in computing. In 2017, an engineer was fired from Google after claiming there was a biological reason for a lack of female computer scientists. [209]