Life In Ancient Greece Essay

Life In Ancient Greece Essay-40
For Aristotle the terrestrial is a place of birth and death, based in these elements.The heavens are a separate realm governed by their own rules.

For Aristotle the terrestrial is a place of birth and death, based in these elements.The heavens are a separate realm governed by their own rules.

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In contrast to the terrestrial, the celestial region of the heavens had a fundamentally different nature. Aside from these were a set of nine objects that behaved differently, the moon, the sun and the planets Mercury, Venus, Mars, Saturn and Jupiter each moved according to a different system. In this system the entire universe was part of a great sphere.

Looking at the night sky the ancient Greeks found two primary kinds of celestial objects; the fixed stars and the wandering stars. Most of the visible objects appear to move at exactly the same speed and present themselves in exactly the same arrangement night after night. This sphere was split into two sections, an outer celestial realm and an inner terrestrial one.

These qualities can be replaced by their opposites, which in this system become how change happens on Earth.

For example, when heated, water seemingly turns steam which looks like air.

Babylonian and Egyptian astronomers developed systems that became the basis for Greek astronomy, while societies in the Americas, China and India developed their own.

Ancient Greek astronomers' work is richly documented in the collections of the Library of Congress largely because of the way the Greek tradition of inquiry was continued by the work of Islamic astronomers and then into early modern European astronomy.The Greeks were applying mathematics to theorize about the nature of their world.They held a range of beliefs about nature and the world but they were, in many cases, working to ground those beliefs in an empirical exploration of what they could reason from evidence.According to Aristotle the lighter substances moved away from the center of the universe and the heaver elements settled into the center.While these elements attempted to sort themselves out, to achieve this order, most of experience involved mixed entities.While we have seen earth, fire, air and water, everything else in the world in this system was understood as a mixture of these elements.In this perspective, transition and change in our world resulted from the mixing of the elements.Aristotle asserted that you could further reduce these elements into two pairs of qualities, hot and cold and wet and dry.The combination of each of these qualities resulted in the elements.When the Earth is in-between the sun and the moon it causes a lunar eclipse and measuring the size of the Earth's shadow on the moon provided part of the information he needed to calculate its size.Eratosthenes estimated Earth's circumference around 240 B. He used a different approach, measuring the shadows cast in Alexandria and Syene to calculate their angle relative to the Sun.

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