Geometry in the Real World

Geometry in the Real World: Saint Basil's Cathedral 2, Moscow

Successive Golden Rectangles dividing a Golden Rectangle into squares (logarithmic spiral known as the golden spiral)

Saint Basil's Cathedral
The Cathedral of Vasily the Blessed, commonly known as Saint Basil's Cathedral, is a former church in Red Square in Moscow, Russia. The building, now a museum, is officially known as the Pokrovsky Cathedral. It was built from 155561 on orders from Ivan the Terrible and commemorates the capture of Kazan and Astrakhan. A world famous landmark, it has been the hub of the city's growth since the 14th century. Read more.

Golden rectangle
A golden rectangle is a rectangle whose side lengths are in the golden ratio, one-to-phi, that is, approximately 1:1.618. A distinctive feature of this shape is that when a square section is removed, the remainder is another golden rectangle, that is, with the same proportions as the first. Square removal can be repeated infinitely, which leads to an approximation of the golden or Fibonacci spiral.


Saint_Basil's_Cathedral 2, Golden Rectangle


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Last updated: Sep 27, 2014