An Explanation of The Golden Ratio - Video
In the 13th century, a mathematician named Leonardo Fibonacci discovered an important number sequence. It’s a very simple sequence of numbers, starting with the number one, twice, each succeeding number in the sequence is the sum of the two preceding numbers, so the sequence goes: 1, 1, 2, 3 , 5 ,8 and so on. And for reasons that are pretty mysterious, this sequence of numbers seems to appear in a wide variety of places in the natural world.
Fibonacci spirals are in scales all around us, from the DNA molecule, to the spiral galaxy.