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Each elevator could carry about 600 pounds (270 kg) (roughly the weight of two lions) 23 feet (7.0 m) up when powered by up to eight men. [4] In 1000, the Book of Secrets by Ibn Khalaf al-Muradi in Islamic Spain described the use of an elevator-like lifting device to raise a large battering ram to destroy a fortress.
N3934C, a Douglas C-54 of Pan African Airlines, was hit by an anti-aircraft shell at 15:23 on April 25, 1969. Descending at 6500 feet into Enugu from Lagos, the shell left a 5-foot hole on the starboard side and injured 5 passengers. The plane turned back to Lagos due to undercarriage issues and made a safe landing after the undercarriage made ...
A climate action plan from 2019 anticipates 2 ft (1 m) to more than 7 ft (2 m) of sea-level rise in Boston by the end of the 21st century. [125] Many older buildings in certain areas of Boston are supported by wooden piles driven into the area's fill; these piles remain sound if submerged in water, but are subject to dry rot if exposed to air ...
The index is based on 60 indicators grouped into five categories, measuring pluralism, civil liberties, and political culture. In addition to a numeric score and a ranking, the index categorizes each country into one of four regime types: full democracies, flawed democracies, hybrid regimes, and authoritarian regimes. The first Democracy Index ...