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 140
... known stories about the Colossus , which ap- peared long after the statue was built , can be safely rejected . One is the statement of Sextus Empiricus ( + II ) , who said that at first the statue was planned to be half its eventual ...
... known stories about the Colossus , which ap- peared long after the statue was built , can be safely rejected . One is the statement of Sextus Empiricus ( + II ) , who said that at first the statue was planned to be half its eventual ...
Página 162
... known , but they may have been statue bases . These wheels are not quite true ball and roller bearings . True ball and roller bearings roll freely in a circular groove called a race , without any trunnions or journal bearings . Still ...
... known , but they may have been statue bases . These wheels are not quite true ball and roller bearings . True ball and roller bearings roll freely in a circular groove called a race , without any trunnions or journal bearings . Still ...
Página 327
... known and unknown , over many centuries . There is no question , however , that it is one of the most important of all inventions in its contribution to civilization . The Chinese possessed geared machinery from an early age some think ...
... known and unknown , over many centuries . There is no question , however , that it is one of the most important of all inventions in its contribution to civilization . The Chinese possessed geared machinery from an early age some think ...
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