The Golden Ratio and the Fibonacci Numbers defined
The History of the Golden Ratio
The History of Fibonacci
Mathematical Properties of the Golden Ratio
Constructing a Golden Rectangle
The Secret of the Golden Ratio
The Golden Ratio and Beauty...
The Golden Ratio and Beauty in Architecture
The Golden Ratio has appeared in ancient architecture. The examples are many, such as the Great Pyramid in Giza, Egypt which is considered one of the Seven World Wonders of the ancient world, and the Greek Parthenon that was constructed between 447 and 472BC. Not only did the ancient Egyptians and Greeks know about the magic of Golden Ratio, so did the Renaissance artists, who used the Golden Ratio in the design of Notre Dame in between the 12th and 14th centuries. Some modern architecture are also influenced by Golden Ratio as well, such as the United Nations Building.
The Great Pyramid at Giza
Half of the base, the slant height, and the height from the vertex to the center create a right triangle. When that half of the base equal to one, the slant height would equal to the value of Phi and the height would equal to the square root of Phi.
The exterior dimensions of the Parthenon form a Golden Ratio in many of the proportions.
The UN Building
In the United Nations building, the width of the building compared with the height of every ten floors is a Golden Ratio.