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Arty Facts: The Wondrous Realm of the Golden Mean

We explore the divine proportion of the Golden Means in all its beauty — from historical masterpieces like Leonardo Di Vinci’s Mona Lisa to Hokusai’s The Great Wave.

What do the following have in common: The Parthenon; pine cones; The United Nations Headquarters in New York; sunflowers; Da Vinci’s Last Supper; galaxies; piano keyboards; many traditional percussion rhythms; snail shells; leaf and petal arrangements of many flowers; various works by Bach, Beethoven and other classical composers; Mona Lisa; hexagrams and other geometrical shapes; Raphael’s Crucifixion; Rembrandt’s Self-Portrait, the Great Pyramid of Giza, to name just a few examples from an impossibly large list? All are manifestations – either in nature or manmade ­– of probably the most profound, useful, logical and elegant patterns in the universe known as The Golden Mean, Golden Ratio, the Divine Proportion or a number of other names.

That’s some claim, but what exactly is it? A question asked no doubt by the Ancient Egyptians and certainly by the Greeks concerned if there was an objective ­– if not devine – measure of beauty that could be expressed mathematically. It was found eventually that two quantities were in the golden ratio if their ratio was the same as the ratio of their sum to the larger of the two quantities. In other words, if you divided a line at a point where you had a short segment and a long segment, and the length of the original line was the same ratio to the longer segment (1.618 to one) as the longer segment was to the short segment, then all the segments would adhere to the Golden ratio.

Like another ratio, Pi, (3.1416) which describes the ratio of a circle’s circumference to its diameter, the golden ratio (1.618) was called Phi by the ancient Greeks, and was thought to best a formula for beauty and elegance in sculpture, murals and even music. Despite Phi being an irrational number, golden sections can easily be created from squares, rectangles, triangles, pentagons and so on with basic tools like a ruler and protractor.

The Golden Mean is closely related to an intriguing number series known as the Fibonacci Sequence attributed to the 10th century Italian mathematician, Leonardo of Pisa. This involves the numbers 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144… in which the first two numbers are added to produce the third, the second and third produce the fourth, third and fourth produce the fifth and so on. As you progress up the series dividing a higher number by the number before it (e.g. 8/5=1.6, 13/8= 1.625 … 34/21=1.6190476) before long the results stablise around the Golden Ratio.

While it’s tempting to assign mystical significance to the fact that Golden sequences occur across the realms of science, art, maths and logic, a closer examination shows that the sequences reveal, say, the most efficient way for nature to produce the greatest number of seeds in a sunflower. But that’s not to say an appreciation of this phenomenon shouldn’t induce a little wonder in your day.

The post Arty Facts: The Wondrous Realm of the Golden Mean appeared first on Prestige Online - Hong Kong.

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