Golden Ratio

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Golden Ratio

• Aka Golden rectangle,
• Divine ratio

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Beautiful?
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Handsome?
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Stunning?
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Fibonaccis sequence

• Start with 1,1.
• Ratio of a number with its predecessor
• Approaches 1.618..
• Known as Phi
• Ratio of a number with its next higher?
• Curiously comes out as reciprocal of Phi!!
• So What!!!!

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Next step Geometry(but this is anatomy class!)

• Make a square, any size.
• Bisect it ( find the middle of one side)
• (pt A)
• From that point make a diagonal line to a corner
  ( pt B)
• Measure AB
• From pt A, add distance AB to square
• Extend sides to make square into new rectangle
• Calculate ratio of new rectangle sides, what do
  you find?

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• Calculate ratio of new rectangle sides, what do
  you find?
• Golden Rectangle!!!!!
• So What..

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Crop circles
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Art
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Insect bodies
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Golden Spiral
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0.618 turn equals 222.5 degrees
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Whats this?
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