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 150
... mechanical toys , and his Pneumatics describes some of these devices . For one thing , Philon was fascinated by siphons . By means of siphons he made pitchers , basins , and other vessels automatically empty and refill themselves ...
... mechanical toys , and his Pneumatics describes some of these devices . For one thing , Philon was fascinated by siphons . By means of siphons he made pitchers , basins , and other vessels automatically empty and refill themselves ...
Página 256
... mechanical advantage . He describes the various means for obtaining this advantage - the windlass , the lever , the compound pulley , the wedge , the worm , and the gear train — and shows how they can be combined . Being a skilled ...
... mechanical advantage . He describes the various means for obtaining this advantage - the windlass , the lever , the compound pulley , the wedge , the worm , and the gear train — and shows how they can be combined . Being a skilled ...
Página 401
... mechanical turnspit , an oil press , a clockwork automobile with a differential gear , mechanical musical instruments , an improved bawdyhouse with a private entrance for clients of quality , a polygonal fortress like that of his friend ...
... mechanical turnspit , an oil press , a clockwork automobile with a differential gear , mechanical musical instruments , an improved bawdyhouse with a private entrance for clients of quality , a polygonal fortress like that of his friend ...
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