The Ancient EngineersBallantine Books, 1974 - 450 páginas Traces the advancement of early invention and technology from the first recorded engineering project of early Egypt. |
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Página 145
... clock , appeared in ancient Egypt . In its original form it was a jar with a hole in the bottom , into which a measured amount of water was poured . When the water had all run out , time was up . The Athenians used the clepsydra to ...
... clock , appeared in ancient Egypt . In its original form it was a jar with a hole in the bottom , into which a measured amount of water was poured . When the water had all run out , time was up . The Athenians used the clepsydra to ...
Página 146
... water clock . The rate of flow of water through a hole in the bottom of a jar is not always the same . Water flows faster if the head of water — that is , the depth of the water at the orifice - is greater . Hence if two dippers of water ...
... water clock . The rate of flow of water through a hole in the bottom of a jar is not always the same . Water flows faster if the head of water — that is , the depth of the water at the orifice - is greater . Hence if two dippers of water ...
Página 148
... water clock , though without stating whether Ktesibios or one of his successors built it . One improvement in the mechanism was to connect the float with the revolving shaft by a cord wound around a drum and counterweighted , instead of ...
... water clock , though without stating whether Ktesibios or one of his successors built it . One improvement in the mechanism was to connect the float with the revolving shaft by a cord wound around a drum and counterweighted , instead of ...
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 Assyrian Athens Babylon became began brick bridge bronze builders building built Byzantine called canal castle catapults centuries China Chinese civilization classical columns 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