Are Sewn In Extensions Safe?

TREE Fibonacci Rectangles spiral of Dürer

We can build a series of rectangles using the numbers in this sequence.
start with a square of side 1, the first two terms in succession.
build another like it on him. We already have a first rectangle Fibonacci Dimension 2 x1.
on the side of two units we build a square and a new 3x2 rectangle.
Ssobre the longest side build a square, we now have a 5x3 rectangle, then a 5x8, 8x13, 13x21 ... We may
34x55 rectangle of 55x89 ...
The more we move forward in this process more we approach the golden rectangle.

We've built a succession of rectangles, whose dimensions based on the square (1x1), go to the rectangle of size 2x1, the 3x2, and progressing inexorably to the golden rectangle.
If we join the vertices of these rectangles, we will form a curve and we are familiar. is the spiral of Dürer .
A spiral, which is fairly accurate, is present in the growth of the shells of molluscs, on the horns of ruminants ... That is, the spiral of growth for and how the animal kingdom.
Fibonacci unintentionally had found the key to growth in nature.