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Mesopotamia: the Origin of Cities and Sumero-Akkadian Culture

Mesopotamia: the Origin of Cities and Sumero-Akkadian Culture

Mesopotamia: the Origin of Cities and Sumero-Akkadian Culture. Ancient History Prof. Marc Cooper. Timeline for Early Mesopotamia. Settlement 5500 BCE Uruk Expansion 3500 BCE City States 3200 – 2350 BCE Gilgamesh 2700 BCE Lagash dynasty 2500 - 2340 Akkadian Empire 2350 - 2200 BCE

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1.29k views • 55 slides
Reflections on Moonsighting

Reflections on Moonsighting

With the Name of Allah, All-Merciful, Most Merciful. Reflections on Moonsighting. Dr. Usama Hasan (Al-Tawhid Mosque & formerly, Royal Observatory Greenwich) Updated: Sha’ban 1430 / August 2009. Synopsis. Ayat, Signs … Surah Names The Sun The Moon & Crescent-Sighting issues.

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631 views • 35 slides
The Mathematics of Time

The Mathematics of Time

The Mathematics of Time. A/P Helmer Aslaksen Dept. of Mathematics National University of Singapore aslaksen@math.nus.edu.sg www.math.nus.edu.sg/aslaksen/. What is the goal of this talk?. Understanding the Heavens was among the major problems in all civilizations

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449 views • 28 slides
Hellenistic Natural Philosophy

Hellenistic Natural Philosophy

Hellenistic Natural Philosophy. The Hellenistic World Schools and Education Four Major Philosophies Mathematics Astronomy. Pre Alexander: Hellenic. Post Alexander: Hellenistic. Alexander the Great (356 – 323 BCE). Alexandria: the new cultural capital. Ptolemy’s Kingdom: Egypt.

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684 views • 19 slides
Earth’s Orbit and the Seasons

Earth’s Orbit and the Seasons

Earth’s Orbit and the Seasons. Seasons on the Earth. Receives only half the heat and light. 1 KW/m 2. 1 KW/m 2. 1 m 2. 2 m 2. In winter a bundle of light is spread over a bigger area than in summer owing to the inclination away from the Sun. Phases of Moon: Earth-Sun Positions.

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620 views • 18 slides
- Review phases of the moon and the lunar calendar

- Review phases of the moon and the lunar calendar

TODAY’S OUTCOMES:. SUN AND MOON ; HEAT. - Review phases of the moon and the lunar calendar - Observe the properties of thermal conductors and insulators - Combine observations and geometry to develop a theory for the behavior for the moon. 1 lunar month = 29.5 days. 1 year = 365.25 days.

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142 views • 6 slides

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