PPT 3 - Exam 1 Flashcards
What factors stimulated the development of engineering
City development
Buildings functional and esthetic
Improved transportation
Hydraulic systems
Knowledge and scientific achievements in Mesopotamia
Knowledge of practical mathematics
Understood the right triangle and it’s specific relationships
New how to calculate area, volume of masonry and excavated soil for canals
Solved simple equations
They used the 60 (hexadecimal) number system (used today for time and for measuring angles)
Might have had drawing plans
-the statue of Gudea with a drawing in his lap
Engineering achievements in Mesopotamia
Temple of Marduk (Babylon)
-Nebuchadnezzar II tower
Double set of walls, one inner and one outer
Southern Palace of Nebuchadnezzar II hanging gardens (Babylon)
Ziggurat at Ur
- sun dried bricks, some stone, burnt bricks for exterior covers
- to provide durability: second wall behind and above upon an interior mound of earth
- used green roofs
- bitumen and asphalt used as binding material
More engineering achievements in Mesopotamia
The palace of Sargon II, Khorsabad (8th century BC)
-moist or partially dried bricks that stuck together as they hardened
-finished with stucco or enameled brick
-limestone monolith (20 tons)
Interior courts of the palace paved with stone set in asphalt
-storm water drains
Early hydraulic engineering in Mesopotamia
Marib or Yemen Dam, Arabian shores of the Red Sea
-2mile long
Jerwan Adueduct, Nineveh (ca. 7th century BC)
Siloam pool, Jerusalem, Israel (ca 7th century BC)
Indus hydraulic engineering
Mohenjo-Daro and Harappa, Indus River valley, Pakistan (ca. 2500 BC)
-embarked and controlled the Indus River
Egyptian Engineering
3 factors determining the character of the Egyptian Engineering
- Great supply of human labor
- We’ll organized labor
- Great quantity of building stone in the upper Nile area
Egyptian pyramids and temples
Construction theories
Sand mound theory
Rocker or cradle theory
-cradle sled used loading and lifting: from the drawings inside the pyramids
Ramp theory
-slipped ramp could be strait or spiraled around the pyramid with platforms, turns, an outside retaining wall of stone/brick
Seesawing method may have been used to lift the huge 55-Tom granite lintels