fibonacci | Gunsmoke and Knitting

Posts Tagged ‘fibonacci’

What is the frequency?

November 26, 2019

In the great tradition of Mole Day and Pi Day, November 23 was Fibonacci Day. Why? Because the date 11/23 represents the first numbers in the sequence identified by Leonardo Fibonacci, and Italian mathematician who was born in Pisa in 1170.

The Fibonacci Sequence starts with 1 plus 1 equals 2, and goes on with each number being the sum of the two numbers directly before it: 1 plus 2 equals 3; 2 plus 3 equals 5; 3 plus 5 equals 8, and so on.

One of the beauties of the Fibonacci sequence is that the series is evident all over the natural world. Petal arrangements in flowers, the ordering of leaves in plants, the shell of the nautilus, the DNA molecule and even hurricanes show patterns that correspond to the sequence. From time & date holidays

It is a sequence that has significance in science, mathematics and art. In art, especially, construction of compositions based on the Fibonacci Sequence are recognized as aesthetically pleasing.

Also in tattoos:

Posted in Uncategorized | Tagged art, fibonacci, tattoo Tuesday, tattoos | 1 Comment »

What am I watching this time?

January 26, 2015

This cool, little video is described as follows:

These 3-D printed sculptures, called aniforms, are designed to animate when spun under a strobe light. The placement of the appendages is determined by the same method nature uses in pinecones and sunflowers. The rotation speed is synchronized to the strobe so that one flash occurs every time the sculpture turns 137.5º—the golden angle. If you count the number of spirals on any of these sculptures you will find that they are always Fibonacci numbers.

For this video, rather than using a strobe, the camera was set to a very short shutter speed (1/4000 sec) in order to freeze the spinning sculpture.

What am I reading?

May 27, 2012

The Man of Numbers by Keith Devlin. This is the story of Leonardo of Pisa, now known as Fibonacci, who essentially invented modern arithmetic. He took number out of the context of merely keeping track of things and set the stage for fields such as technology, design, and commerce to develop and prosper

“The change in society brought about by the teaching of modern arithmetic was so pervasive and all-powerful that within a few generations people simply took it for granted. There was no longer any recognition of the magnitude of the revolution that took the subject from an obscure object of scholarly interest to an everyday mental tool. Compared with Copernicus’s conclusions about the position of Earth in the solar system and Galileo’s discovery of the pendulum as a basis for telling time, Leonardo’s showing people how to multiply 193 by 27 simply lacks drama.“

Remember the Powers of Ten video? This is a similar concept, but explores the Fibonacci Sequence in nature: