Life In Ancient Greece Essay

Life In Ancient Greece Essay-26
The diagram at the right illustrates a translation of his work.The large circle is the sun, the medium circle is the Earth and the smallest circle is the moon.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.

The diagram at the right illustrates a translation of his work.The large circle is the sun, the medium circle is the Earth and the smallest circle is the moon.

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The heavens are a separate realm governed by their own rules.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.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.In Aristotle's system there was no such thing as void space.All space was filled with some combination of these elements.There is some dispute on the accuracy of his calculations as we don't know exactly how long the units of measure were.The measurement however was relatively close to the actual size of the Earth.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.

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