The Ancient EngineersDoubleday, 1963 - 408 páginas This book is about those whose genius enabled the Egyptians to build their pyramids, the Phoenicians to cross stormy seas, the Romans to erect magnificent public buildings--that this carefully researched and fascinatingly written account of the advance of early technology has been written.Mr. de Camp describes the methods used by early irrigators, architects, and military engineers to build and maintain structures to serve their rulers' wants. He tells, for example, how the Pharaohs erected obelisks and pyramids, how Nebuchadnezzar fortified Babylon, how Dionysios' ordnance department invented the catapult, how the Chinese built the Great Wall, and how the Romans fashioned their roads, baths, sewers, and aqueducts. He recounts many intriguing anecdotes: an Assyrian king putting up no-parking signs in Nineveh; Plato inventing a water clock with an alarm to signal the start of his classes; Heron of Alexandria designing a coin-operated holy-water fountain; a Chinese emperor composing a poem to be inscribed on a clock invented by one of his civil servants. |
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Página 77
... rowers would otherwise occupy for its cargo and could not afford a large crew of rowers . Most ancient rowers , Ben - Hur to the contrary notwithstand- ing , were free workers , and fairly well - paid ones at that . The use of slaves ...
... rowers would otherwise occupy for its cargo and could not afford a large crew of rowers . Most ancient rowers , Ben - Hur to the contrary notwithstand- ing , were free workers , and fairly well - paid ones at that . The use of slaves ...
Página 103
... rowers ) nearly all of the same length . With four or five banks , however , the oars of the uppermost banks must ... rowers in groups of two or three , it was more efficient to have each man pull his own oar . In such medieval galleys ...
... rowers ) nearly all of the same length . With four or five banks , however , the oars of the uppermost banks must ... rowers in groups of two or three , it was more efficient to have each man pull his own oar . In such medieval galleys ...
Página 384
Lyon Sprague De Camp. to thirty benches on a side and the rowers arranged as shown in Fig . 24. The Byzantine arrangement of rowers , vertically staggered on two levels , had given way to one in which all three rowers of each group sat ...
Lyon Sprague De Camp. to thirty benches on a side and the rowers arranged as shown in Fig . 24. The Byzantine arrangement of rowers , vertically staggered on two levels , had given way to one in which all three rowers of each group sat ...
Contenido
One The Coming of the Engineers | 1 |
Two The Egyptian Engineers | 18 |
Three The Mesopotamian Engineers | 46 |
Derechos de autor | |
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Términos y frases comunes
Agrippa Alexandria ancient aqueducts Arabs arch Archimedes architect Aristotle armor army Athens Babylon became began brick bridge bronze builders building built Byzantine called canal castle catapults centuries China Chinese civilization classical columns conquered Demetrios dome early Egypt Egyptian emperor Empire engineering Europe feet fire Frontinus galleys gear Greek Hadrian Hellenistic Hence Herodotos Heron Heron of Alexandria High Middle Ages horse houses Imhotep India invention iron irrigation kings Ktesibios Lake land later Leonardo mechanical medieval Mediterranean Mesopotamia Mesopotamian Middle Ages miles mill modern Mongols Muslim Nemi ships oars palaces Persian Philon Philon of Byzantium Phoenicians piers pipes probably Ptolemaios pyramid Renaissance river roads Roman Rome roof rowers sail Sennacherib shaft ships side siege statue stone structure temple took tower Trajan treadwheel tunnel turned vault Vitruvius wall water clock water wheel wooden