Many variants have been proposed, but the concept most often refers to an elevator that reaches from the surface of the Earth to geostationary outer space, with a counterweight attached at its outer end.
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Crankshaft: A counterweight is also used in many rotating systems to reduce vibrations due to imbalances in the rotating assembly.
The Atlantic Quarter was described as capable of rivalling Dublin's docklands area and acting as a counterweight to the International Financial Services Centre in Dublin and the Titanic Quarter in Belfast.
A Bascule bridge, a moveable bridge with a counterweight that continuously balances the span, or "leaf," throughout the entire upward swing in providing clearance for boat traffic.
However, after Ide Falk's death in 1399, the queen and Bishop Peder of Roskilde realised the strategic importance of the location as a counterweight to the archbishop's castles at Åhus, four miles to the north, and Hammershus on Bornholm.
His replacement of Yahya Rahim Safavi the former IRGC commander, was thought to be a move by Khamenei to strengthen the conservative faction as a counterweight to the radicalizers around President Mahmoud Ahmadinejad (Safavi is close to Ahmadinejad).
As this suggests, he was of Cavalier sympathies, and an important counterweight locally to Robert Greville, 2nd Baron Brooke, lord of the manor of Penkridge, who was an important leader of the Puritan and Parliamentary cause, who was killed during the siege of Lichfield Cathedral in 1643.
In 1804, Roane persuaded his cousin Thomas Ritchie, a schoolteacher and bookstore owner, to establish the 'Richmond Enquirer' as an intellectual counterweight to the 'Virginia Gazette' (which supported the Whig party) and 'Richmond Recorder' (which supported the Federalists).
Through them he was able to maintain an understanding with the German Chancellor, Bismarck to solve mutual problems, with Bismarck being a useful counterweight to French meddling in Egypt, and Britain being a useful ally of Austria-Hungary, thus meaning Bismarck did not have to choose between his two allies, Russia and Austria-Hungary, when they were at odds in the Balkans.
Although Deedes had pro-Zionist sympathies, he played an active part in promoting the Supreme Muslim Council as an Arab counterweight to the Jewish Agency.