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Relay For Life is a community-based fundraising event for the American Cancer Society. [1] Each year, more than 5,000 Relay For Life events take place in over twenty countries. [2] Events are held in local communities, university campuses and as virtual campaigns. [3] As the American Cancer Society 's most successful fundraiser and the ...
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PCB mount solid-state DIL relay. A solid state relay ( SSR) is an electronic switching device that switches on or off when an external voltage (AC or DC) is applied across its control terminals. They serve the same function as an electromechanical relay, but solid-state electronics contain no moving parts and have a longer operational lifetime.
History From the beginnings to the first official world record. If on the European continent the metric system is the one almost exclusively used (4 × 100 metres, or a lap of 400 m), where the imperial system is still used (UK, USA and Australia, mainly) this relay was rather ran over the distance of 4 × 110 yards, a total of 402.34 m, and that, until the late 1960s.
Printed circuit board of a DVD player. Part of a 1984 Sinclair ZX Spectrum computer board, a printed circuit board, showing the conductive traces, the through-hole paths to the other surface, and some electronic components mounted using through-hole mounting. A printed circuit board ( PCB ), also called printed wiring board ( PWB ), is a medium ...
Automatic Packet Reporting System ( APRS) is an amateur radio -based system for real time digital communications of information of immediate value in the local area. [1] Data can include object Global Positioning System (GPS) coordinates Non-directional beacon, weather station telemetry, text messages, announcements, queries, and other telemetry.
A CAPTCHA ( / ˈkæp.tʃə / KAP-chə) is a type of challenge–response test used in computing to determine whether the user is human in order to deter bot attacks and spam. [1] The term was coined in 2003 by Luis von Ahn, Manuel Blum, Nicholas J. Hopper, and John Langford. [2]
Jeff Bezos. Jeffrey Preston Bezos ( / ˈbeɪzoʊs / BAY-zohss; [2] né Jorgensen; born January 12, 1964) is an American businessman, media proprietor and investor. He is the founder, executive chairman, and former president and CEO of Amazon, the world's largest e-commerce and cloud computing company.