The Ancient Greeks For Dummies
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The golden ratio is a famous geometry idea with a connection to ancient Greece. (When it came to mathematics, physics, astronomy, philosophy, drama, and the like, those ancient Greeks sure did kick some serious butt.)

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The figure below shows the Parthenon on the Acropolis in Athens.

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Built in the fifth century B.C., it is an example of architecture that uses the golden ratio.

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Then you can divide the smaller rectangle into a square and a rectangle, and then you can divide the next rectangle, and so on, as shown below.

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When you connect the corresponding corners of each similar rectangle, you get a spiral that happens to be the same shape as the spiraling shell of the nautilus — amazing!

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Stephen Batchelor is Head of School for Creative and Visual Arts at MidKent College and has taught ancient history and classical studies for many years. Stephen has written book reviews for Current Archaeology and History Today, and is the author of The Ancient Greeks For Dummies.

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