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Elevator Inspector
An elevator (American English) or lift (Commonwealth English) is a machine that vertically transports people or freight between levels. They are typically powered by electric motors that drive traction cables and counterweight systems such as a hoist, although some pump hydraulic fluid to raise a cylindrical piston like a jack. Elevators are used in agriculture and manufacturing to lift materials. There are various types, like chain and bucket elevators, grain augers, and hay elevators. Modern buildings often have elevators to ensure accessibility, especially where ramps aren't feasible. High-speed elevators are common in skyscrapers. Some elevators can even move horizontally. History Pre-industrial era The earliest known reference to an elevator is in the works of the Roman architect Vitruvius, who reported that Archimedes ( – ) built his first elevator probably in 236 BC. Sources from later periods mention elevators as cabs on a hemp rope, powered by people or anim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spalding Building, Portland, Oregon (2012) - 15
Spalding may refer to: People * Spalding (surname) * Spalding Gray (1941–2004), American actor, screenwriter, and playwright * Spalding (comics), a fictional character from ''The Adventures of Tintin'' by Hergé Places Australia * Spalding, South Australia, a town north of the Clare Valley * Spalding, Western Australia, a suburb of Geraldton Canada * Rural Municipality of Spalding No. 368, Saskatchewan ** Spalding, Saskatchewan, a village England *Spalding, Lincolnshire *Spalding Rural District, a rural district in Holland, Lincolnshire, England from 1894 to 1974 *Spalding Moor, a wetland in the East Riding of Yorkshire *Holme-on-Spalding Moor, village in East Riding of Yorkshire United States * Spalding, Georgia * Spalding, Idaho * Spalding, Missouri * Spalding, Nebraska * Spalding County, Georgia * Spalding Township, Michigan * Spalding Township, Minnesota Other * Clan Spalding, Scottish Sept of Clan Murray * King & Spalding, American law firm in Atlanta, Georgia, US * S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ibn Khalaf Al-Muradi
Ibn Khalaf al-Murādī, (; 11th century) was an Al-Andalus, Andalusian engineer. Al-Murādī was the author of the technological manuscript entitled ''Kitāb al-asrār fī natā'ij al-afkār'' ('', The Book of Secrets in the Results of Thoughts'' or ''The Book of Secrets in the Results of Ideas'').Ahmed Djebbar, "Technology in the service of progress: The examples of hydraulic technologies," in Civilization in the Mirror of Universal', UNESCO, 2010, p. 292-304. It was copied and used at the court of Alfonso VI of León and Castile in Christian Spain in the 11th century. The manuscript provides information about a "Castle and Gazelle Clock" and many other forms of complicated clocks and ingenious devices. In 2008, the Book of Secrets of al-Muradi was published in facsimile, translated in English/Italian/French/Arabic and in an E-book, electronic edition with all machines interpreted in 3D, by the Italian study center Leonardo3 Museum, Leonardo3. References {{authority ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
