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Bar gates, especially manually operated ones, are often counterweighted to allow easier manual control. [7] Bar gates are frequently paired end to end or closely offset to block traffic in both directions. Some bar gates also have a second arm which hangs 30 to 40 cm below the upper arm when lowered to increase approach visibility.
The Watergate complex in Washington, D.C., the inspiration for the -gate suffix following the Watergate scandal. This is a list of scandals or controversies whose names include a -gate suffix, by analogy with the Watergate scandal, as well as other incidents to which the suffix has (often facetiously) been applied. [1]
Yett hanging in the main entrance of Blackness Castle, Scotland, showing attached bolts and pierced construction.Wrought in 1693. [1]A yett (from the Old English and Scots language word for "gate") [2] is a gate or grille of latticed wrought iron bars used for defensive purposes in castles and tower houses. [3]
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XOR has the worst-case Karnaugh map—if implemented from simple gates, it requires more transistors than any other function. Back when transistors were more expensive, designers of the Z80 and many other chips were motivated to save a few transistors by implementing the XOR using pass-transistor logic rather than simple gates.
In Bill Gates' new autobiography, "Source Code: My Beginnings" (published February 4 by Knopf), the computer pioneer and philanthropist writes of his formative years, and the experiences that led ...
The African Americans: Many Rivers to Cross is a six-part documentary miniseries written and presented by Henry Louis Gates Jr. It aired for the first time on the Public Broadcasting Service (PBS) in the fall of 2013, beginning with episode 1, "The Black Atlantic (1500–1800)", on October 22, 8–9 p.m. ET on PBS, and every consecutive Tuesday through to episode 6, "A More Perfect Union (1968 ...