Fibonacci / Golden Spirala

The Fibonacci succession is an endlessly episode of numbers (the Fibonacci numbers). Each of the following numbers results out of the both previous numbers: 0, 1, 1, 2, 3, 5, 8, 13, …

The italian mathematician Leonardo from Pisa (called Fibonacci) published the succession in 1202 and can be seen in the construction of many plants.

Therefor the “Golden cut” finds always admiration, because it can be seen in nature like for example the five- symmetrie of bellflowers and starfishes. The shell of the nautilus includes in the construction the both of Fibonacci numbers and the golden cut.

The growth can be expressed by squares, which side lengths results of the sum from the next smallest square.

Giant Spirograph

Daily we see thousands of rolling wheels. Still it feels difficult for us to recognize, that a point moves on the scope of a rolling wheel.

Tubes to Hear

Before 2500 years the pythagorean watched, that the pitch is related with the length of the tube. The shorter the tube, the higher the tone. A halving of the pipe length increases the sound about an octave.

Swinging String

With the rotatable drum the vibration of the string and its nodes can be visualised.

Mirror Symmetry

Some of our letters got a horizontally symmetry axis.