The Ancient Engineers |
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Página 34
... method seems to have been used for long pieces of granite , such as obelisks , perhaps be- cause it created less risk of cracking the stone than the wedging methods . The stones were moved by the lavish use of levers and ramps , first ...
... method seems to have been used for long pieces of granite , such as obelisks , perhaps be- cause it created less risk of cracking the stone than the wedging methods . The stones were moved by the lavish use of levers and ramps , first ...
Página 40
... methods like those employed in moving pyramid blocks . To erect an obe- lisk , they probably hauled it up an earthen ramp and dug the earth away under the butt until the obelisk had tipped up to an angle of about 45 ° . When the lowest ...
... methods like those employed in moving pyramid blocks . To erect an obe- lisk , they probably hauled it up an earthen ramp and dug the earth away under the butt until the obelisk had tipped up to an angle of about 45 ° . When the lowest ...
Página 198
... methods remain , be- cause as soon as Roman authority lapsed , the local people pried up their roads in order to use or sell the lead . Parts of some Roman roads still remain in much their original condition . Today you can drive over ...
... methods remain , be- cause as soon as Roman authority lapsed , the local people pried up their roads in order to use or sell the lead . Parts of some Roman roads still remain in much their original condition . Today you can drive over ...
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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Agrippa Alexandria ancient aqueducts Arabs arch Archimedes architect Aristotle armor army Assyrian 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 kings Ktesibios Lake land later Leonardo machine 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