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. |
Dentro del libro
Resultados 1-3 de 22
Página 81
... oars and a small sail ; and the merchantman , short and tubby with few oars and a large sail . All ships had one single rectangular " square " sail . The warship needed many oars to dart about in all directions during a battle . The ...
... oars and a small sail ; and the merchantman , short and tubby with few oars and a large sail . All ships had one single rectangular " square " sail . The warship needed many oars to dart about in all directions during a battle . The ...
Página 104
... oar passed in front of his seat mates and their oars - as long , that is , as the rowers kept strict time . In the larger medieval galleys , it was found most effective to range the oars in a single bank and have four or five men pull each ...
... oar passed in front of his seat mates and their oars - as long , that is , as the rowers kept strict time . In the larger medieval galleys , it was found most effective to range the oars in a single bank and have four or five men pull each ...
Página 159
... oars in two or three banks and a varying number of rowers on each oar . Hence Demetrios Poliorketes ' elevener , for instance , may have had oars in two banks , with six men on each upper oar and five on each lower , so that the number ...
... oars in two or three banks and a varying number of rowers on each oar . Hence Demetrios Poliorketes ' elevener , for instance , may have had oars in two banks , with six men on each upper oar and five on each lower , so that the number ...
Contenido
One The Coming of the Engineers | 13 |
Two The Egyptian Engineers | 28 |
Three The Mesopotamian Engineers | 53 |
Derechos de autor | |
Otras 8 secciones no mostradas
Otras ediciones - Ver todas
Términos y frases comunes
Agrippa Alexandria ancient aqueducts Arabic arch Archimedes architect Aristotle armor army Assyrian Athens Babylon became began brick bridge bronze builders building built Byzantine called canal castle catapult centuries China Chinese civilization classical columns conquered Demetrios dome early Egypt Egyptian emperor Empire engineering Europe feet fire Frontinus galleys gear Greece Greek Hadrian harbor Hellenistic Hence Herodotos Heron Heron of Alexandria High Middle Ages horse houses Imhotep India invention iron irrigation kings Ktesibios Lake land later Leonardo machine mechanical medieval Mediterranean Mesopotamia Mesopotamian Middle Ages miles mill modern Mongols mounted Muslim oars palaces Persian Philon Philon of Byzantium Phoenicians piers pipes Plinius probably pyramid river roads Roman Rome roof rowers sail Sennacherib shaft ships side siege statue stone structure temple took tower Trajan treadwheel tunnel turned vault vessel Vitruvius wall water clock water wheel wind wooden